The check engine light with a down arrow means that the transmission system needs to be checked by a mechanic. If youre experiencing any of these problems, its important to take your car to a mechanic as soon as possible to have it checked out. 0000041311 00000 n endstream endobj 5 0 obj <> endobj 6 0 obj <>/ExtGState<>/ProcSet[/PDF/ImageC]/Properties<>>>/XObject<>>>/Rotate 0/TrimBox[0.0 0.0 612.0 792.0]/Type/Page>> endobj 7 0 obj [/ICCBased 17 0 R] endobj 8 0 obj [/Separation/100c#20100m#200y#200k 18 0 R<>] endobj 9 0 obj <>stream A lot of people dont know what this light means, and it can be confusing. Your manual has more information you can refer to for a deep understanding of these warning lights. Go to SELECT MODE. 0000006333 00000 n Take the car to a decent mechanic so they can diagnose exactly what is wrong, it could be anything from a leaking hose to a failed sensor. DEF warning light on Isuzu D-Max is an amber symbol consisting of a wavy line, smoke trail, and fluid drops. You can drive the car with minimal SD when the light is on, but the SD and acceleration will be reduced. Unfortunately, you will have trouble driving your vehicle until the problem is resolved and the code is cleared. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. If you toggle the switch again, it will go to an Automatic or Smart Exhaust Brake shown by AUTO below the dashboard warning light. )NsNO7,__~q}WVYZ?,. Resolving the underlying issue will clear the diagnostic code and reset the engine light. thanks. To learn what causes that specific light to turn on in your cars dashboard, what it means, and what to do when it appears, continue reading. If you press the hazard button, both turn signals flash. An auto repair shop could charge anywhere between $88 to $144 to run a check engine light diagnosis. The next time you see the engine light with an arrow come on in your car, dont panic. The vehicle may be driven at a reduced speed when reduced engine power light is on but acceleration and speed may be reduced. One light is a engine light that says check in the middle of it and the other is just a engine light The DEF light is on as well but I have a full DEF tank Andy at ABC TOWING, Aug 4, 2016 #1 + Quote Reply Trucking Jobs in 30 seconds Every month 400 people find a job with the help of TruckersReport. Causes of the check engine light with a down arrow. Also known as limp home mode, limp mode is a security feature in cars which activates when the engine or transmission control unit picks up a fault. That may not be within your reach. Doing any repair on the ETC system requires a lot of precision, and that is why you should look for a professional to do it. ETC stands for electronic throttle control, and its responsible for regulating the flow of air into the engine. The word SET also appears below it. <<2999044F5CE4314986B0B6866338DE03>]/Prev 421894>> Accordingly, the ECM creates an ideal air fuel mixture to offer optimum mileage under different driving conditions. I checked my check engine and it said that my cool system wasn't working properly but when I checked my cooling system it was fine, it good. They ended up replacing injector #1, the SCV and the fuel filter (I think that was it). Have Npr That Suddenly Shows Battery, Brake, And Vacuum Idiot Lights. 0000038662 00000 n Hold down the INFO button. The primer pump was seized and possibly the problem, couldn't free it. Hello, I'm Drago, the cofounder, and writer here at carphrases.com. But if it stays on or comes on when driving, there is clogging or fault with the fuel filter. If there is a problem involving the ETC system in your car, the check engine light with a down arrow will surely turn on. Answer: The check engine light is flashing because the catalytic converter could be damaged. This is when the truck cuts power and strts to go into limp mode. You should keep your eye on the instrument panel and message center for any symbols to perform proper follow-ups. Likely causes for your car entering limp mode range from faulty engine sensors and wiring to low fluid levels, such as engine coolant and oil. The ECM uses this data to determine the amount of fuel to inject into the combustion chamber. -5 to +5 is a good injector. The check engine light appears in every vehicle if there is a problem with the engine sensors, catalytic converter, or loose fuel cap. The engine warning light can mean a lot of different things. Check the sensors to ensure they are functioning properly. Our editors pick the products & services we write about. now a light shape like the engine with an arrow pointing down is on. If the throttle doesnt seem tight enough, tighten it and make sure that you get a loud click sound. 1A Auto is not responsible or liable for any loss damage (including, but not limited to, actual, consequential, or punitive), liability, claim, or any other injury or cause related to or resulting from any information posted in this video. Electrical Problem I Recently Purchased A 2010 Equinox With 35000 Miles On It. It's staying on Mechanic's Assistant: What is the make/model/year of your car? Brake pedals may become much harder to depress if it fails and the warning light appears. In either case, it indicates an urgent issue that you should address ASAP. Engine Bearing Replacement Cost | Is It Expensive? I then checked at fuel filter base inlet and vacuum was low (1" Hg). 0000001515 00000 n Yes, there is a distinction between the two lights even though they both signal a problem in the engine. The Isuzu Rodeo is an automotive nameplate that was used by the Japanese automobile manufacturer Isuzu between 1988 and 2004. Worn-out spark plug wires can also cause the check engine light to come on. This usually happens when the engine is warm. Hello! 0000023362 00000 n There are two primary reasons the check engine light with a down arrow might appear on display. If it doesnt go off, visit an auto repair shop for fixing. Press and hold the RIGHT knob. could this gas in the system have ruined the pump? Save my name, email, and website in this browser for the next time I comment. Learn more. How Much Does A Check Engine Light Diagnosis Cost. If you dont use it, you deactivate the system by toggling a switch on the dashboard. The SCR systems are a pain in the ass. startxref Isuzu Trouble codes. And the Isuzu NPR Diesels MPG (miles per gallon) stats dont disappoint. Main Specifications Displacement 5.2L (317.3 cu in) Fuel DIESEL Dry Weight 470kg (1036.2lbs) Coolant Capacity (Block) 14.0L (14.8 qt.) Our "mechanic" at work continues to tell the market manager that its just a stored error code that he cant delete, which is why I'm still driving it. Some examples include Buick Rainier, Saturn sl2, Buick Rendezvous, Buick Lucerne, and Buick LeSabre, to mention a few. You can press or rotate the knob to cycle the menu. Though not a common error to see, a check engine light with a down arrow might appear, and if you clearly dont understand the signal, there might be a problem. This will result in a flashing check engine light, and your ECM will register a trouble code. 0000001707 00000 n The price can also vary depending on the vehicle model and the labor charges. . We perform over 600 repair and maintenance services including oil changes, 0000019277 00000 n Rotate the RIGHT knob to set the interval. Detailed Breakdown! Follow the instructions below to reset the Engine Oil Filter Light on your Isuzu NPR: Turn the ignition switch to the ON position. Some situations require immediate attention, while others might take a while and still not affect the vehicle permanently. You can troubleshoot this problem if you are a DIYer. The picture symbol, in essence, is an engine seen from the side, is the same as the check engine light with a down pointing arrow to indicate that the power is reduced. %PDF-1.5 % It momentarily comes on when you turn the ignition. The PMC senses an issue with the car's throttle actuator control If this happens, you should stop the vehicle and check if the cables are in good shape. Pull off the road and shut down the engine to let it cool. Tightening the gas cap should resolve the issue. If the sensor detects that the engine is running too cold, it will illuminate the check engine light with a down arrow to indicate that the fuel mixture should be richened up. Other vehicle models show it as a letter A cycled by a clockwise-facing arrow. 4 0 obj <> endobj Download the trouble codes and see if you can find some information that can point you to a specific component (s) or system. Read the codes by the number of flashes of the indicator CHECK ENGINE. It is safe to drive your truck, but you risk wheel locking. If your vehicle goes in limp mode while driving, find a safe place to stop and restart the engine. This system allows you to maintain a set speed on an open road or a highway without putting your foot on the gas pedal. Its the Japanese brands workhorse thats designed to take on any road and any job. I eventually found fault in the fuel filter mounting base - fuel flow was restricted. You should fix the problem to avoid using much force when stepping on the brakes. When the check engine light comes on while driving, it means that the vehicles computer has found an issue with the engine or emission control system. Learn Now! It doesnt mean your car is about to blow up it just means the computer has detected a problem and needs your help to figure out whats going on. 5.7L V8 Base Luckily, the Isuzu NPR is a reliable, flexible option that checks all the boxes and makes that choice a little easier. Always remember to turn on the hazard light if your truck has a mechanical problem or a breakdown to alert other road users. Drop it off at our shop and pick it up a few hours later, or save time and have our Delivery mechanics come to you. If it's safe and it runs ok and is not derated, might as well drive it. Getting a multi point inspection that includes brake service, alignment service, or oil change service can help prevent future problems. Ignoring the check engine light can lead to further damage to the engine or emission control system, so its best to have the car checked out right away. If this light comes on, do not drive the vehicle until it can be checked by a mechanic. However, youll still require a certified technician to do a multi point inspection and find the root cause of the issue. may need a top up. Stay tuned! Finally, reset the throttle body and see if the check engine light comes back on. In contrast, the check engine light with a down arrow is not ordinary and appears on particular vehicles with an ECT system. Watch this video to find out how you can diagnose the problem, and why the code comes up.For other common check engine code videos check out our playlist here:http://www.youtube.com/playlist?list=PL37d7oWG6wDC2dpOi1UfEtcxqgokEhbydFor More Info visit us at http://1aau.to/h/ceT/ DISCLAIMER:While 1A Auto strives to make the information provided in this video as accurate as possible, it makes no claims, promises, or guarantees about the accuracy, completeness or applicability of the content. Question about Isuzu Cars & Trucks 1 Answer Have a 2005 Isuzu npr diesel which keeps going into limp mode with check transmission light blinking. The transmission needs to be changed. If it stays on or comes on when driving, the 4WD system has a fault. The most popular reason for this problem is a coolant leak. The mechanics thought this was the problem. 0000001549 00000 n Whatever the cause, pull off the road immediately and shut down the engine to let it cool. If the sensor goes bad or there are any leaks in the air intake tract, the check engine light will come on. It functions when you activate them by toggling a switch on the dashboard. I Was Driving On A Cold Rainy Day And The Engine Light And Transmission Light Started Blinking. What Is Car Battery Voltage And Why Is It Important? The symbol is an amber circle enclosed in braces with ABS or just the acronym. Much like your cars check engine light, the reduced engine power warning cannot be reset with a simple push of a button or flip of a switch. The Check Engine Light can shine steadily, which indicates there's an issue that must be checked out. My vehicle runs great for having 250,000 miles on it. (Diagnosis & Fixes), 6 Reasons Why The Check Engine Light May Come On. Check your coolant or engine oil level and refill as necessary. There are quite a few sensors which control the engine and transmission. It can be orange, amber, or yellow light, depending on the car manufacturer. The battery discharge warning light is a red symbol of the typical car battery you find in all vehicles. Rotate the RIGHT knob to set the interval. This helps the ECM (cars computer) to know how efficiently the fuel burns during combustion. Alarm beeps may accompany this warning indicator. 0000183583 00000 n I had transmission fluid checked last year about this time from the dealership. Topdon OBD2 Scanner Review - This thing rocks, https://www.2carpros.com/articles/engine-overheating-or-running-hot, https://www.2carpros.com/articles/symptoms-of-an-overheating-engine, https://www.2carpros.com/articles/radiator-pressure-test, https://www.2carpros.com/articles/car-is-leaking-coolant. An amber color may indicate a system fault. If they are, confirm if the sensor is working and if yes, then check whether the throttle is tight. All do-it-yourself projects entail some risk. You will see this symbol on the dashboard when you manually set and activate it by pressing a cruise control symbol. by zerok3wl Isuzu diesel "EXH. So since I cant get them to bring it in yet, if its something that I can fix myself I will go that route. 4. Come join the discussion about PowerStrokes, performance, modifications, troubleshooting, towing capacity, maintenance, and more! But the further you go, the riskier it becomes. If you accidentally leave this gas cap loose, you can lose fuel through evaporation, and your exhaust gas recirculation system will not function smoothly. You require a specialized diagnostic tool to find the code that points at the possible cause. By accepting all cookies, you agree to our use of cookies to deliver and maintain our services and site, improve the quality of Reddit, personalize Reddit content and advertising, and measure the effectiveness of advertising. It is a safety feature to prevent further engine damage. The problem may be something as simple as a gas cap issue, or it could be something more serious that requires repairs. The first one is a three-letter acronym, DRL, whereas the other consists of small dots or lines radiating from an oval-shaped figure. Read codes Turn the ignition ON, without starting the engine. Whenever the ECM runs into an issue that it cant resolve, it triggers the Check Engine Light (CEL). To get the warning to go off and stay off, you (or your mechanic) will need to fix whatever underlying problem triggered it in the first place. Hello, I Bought A Used 2005 Chevy Equinox And I Love It Except For Two Problems. After reading about more than one person who just about replaced their entire fuel system with no luck I decided to take it to a GMC truck shop. $131, 5.2L L4 Turbo Diesel Base It is responsible for regulating the amount of air that enters the engine. A forum community dedicated to all Ford Diesel owners and enthusiasts. Cab, 8' bed, 99 & up 7.3L Power Stroke Engine & Drivetrain, 99 & up Upgrades and Aftermarket - 7.3L Engine, 7.3L IDI Diesels (Not Powerstrokes) 1988-1993. The first mode is the Full-Strength indicated by an amber exhaust brake dashboards indicator. 0000041346 00000 n 95,000 miles, $95 - Toggling a third time will turn the exhaust brake off, and OFF appears below the indicator. It automatically shuts down the engine when it stays idle for some time. Dont worry, youre not alone. There's seems to be too much raw fuel going through he exhaust. Some other reasons that could also cause engine misfire and trigger the engine light are: If you keep ignoring the check engine light for such misfires, they can result in serious problems like a mechanical failure of your cars engine. The Fora platform includes forum software by XenForo. Vacuum should only be approx. It is a safety feature to prevent further engine damage. The performance may be reduced until the next time you drive your vehicle. Its throwing a p0087 everytime you try to accelerate, and cuts engine power. When stopped it doesn't want to move or just inches when gas pedal is pressed/floored. We have a a fleet of Isuzu's similar to that. I Have Also Noticed A Problem With Acceleration When The My Check Engine Light Came On And Refuses To Go Off, What Do It Do? I installed a new filter base (comes with new filter) and no more code or power loss. If the light is red, it indicates that the problem is serious and the vehicle should not be driven until it can be diagnosed and repaired. Select END to exit settings. One of the guys said that the aftermarket filters out there (I used a WIX from NAPA) "flow too well" and that they always use stock Isuzu. 4 21 once you begin to drive and push the pedal half way down it sets the code and looses power. There are a few things that you can do to check if the throttle actuator control is actually the cause of the check engine light. 2000 Isuzu NPR-HD 5.7L V8 Base 95,000 miles $95 - $117 It does not take a dealer to do this service. A while ago the EXH. Your vehicle will also not pass the emission tests as a bad catalytic converter will emit harmful compounds like hydrocarbons and nitrogen oxides. So your "mechanic" might be right. Diesel particulate filter materials have been developed that show impressive filtration efficiencies, in excess of 90%, as well as good mechanical and thermal durability. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. The hazard warning indicator is a red triangular light on the dashboard. If theres a problem with the ETC system, it can cause the engine to run lean, which can lead to decreased fuel economy and power. Your car is safe at this reduced power, but you should take it to a mechanic for further diagnosis and fixing. An overdrive off warning light is a letter D inside a square shape with a diagonal line crossing from the top-left corner to the bottom-right corner. A got a 2011 isuzu with check engline light with a arrow in the middle of it When the pto is on the check engine light with a arrow pointed down cuts on and reduces the power. Use an OBD II scan tool for reading the trouble code. Scroll and select the SERVICE. Inspect the dashboard for a warning light indicating low oil pressure or overheating. It could indicate a problem with the emission control system, the fuel system, or even engine overheating. In some cases, it may be safe to continue driving for a short distance while making your way to a service station or mechanic. This Isuzu truck warning light is an amber engine block with a downward-facing arrow. My vehicle runs great for having 250,000 miles on it. They are designed to remove diesel particular matter (soot) from the exhaust gas in a diesel engine. How Much Does A V8 Engine Cost? Follow the instructions below to reset the Engine Oil Filter Light on your Isuzu NPR: Turn the ignition switch to the ON position. The price can also vary depending on the vehicle model and the labor charges. 0 ABS warning light temporarily comes on when you start the engine. Mixture control solenoid circuit failure - 1987 and 1995 Amigo/Pick-up, 1989 to 1994 V6 models. Since the engine light can come on for numerous reasons, the ECM also logs a Diagnostic Trouble Code (DTC) detailing the issue. brakes, diagnostics, belts and hoses, and more. If there is an issue with the throttle actuator control, it can cause the check engine light to come on. SYSTEM" warning light on if DEF is over half full. There are two knobs in the instrument cluster, press RIGHT one repeatedly until you see the Engine Oil Filter. Is It Safe To Drive With The Check Engine Light On? This problem requires urgent attention where you can take the vehicle for service or change the ETC itself. Once you add DEF to above half it will pop right back on after a few minutes of idling. The throttle actuator control is a cause behind the check engine light. If so, youre probably wondering what it means. 0000041570 00000 n More serious issues include gearbox and clutch malfunctions or brake problems. How do you reset the service light on a Isuzu NQR? Press and hold the RIGHT knob. Do not drive your truck in that case because of a possible brake failure. I have a check engine light on with a down arrow what does it mean Mechanic's Assistant: Does the light stay on, or does it blink? The turn signal indicators in Isuzu are the typical green arrows you will find in any car. I have been working in the automotive industry for more than 15 years. If one of the sensors, such as the MAF, MAP, TPS or speed sensors are sending improper signals to the computer, limp mode can activate. Driving with the ATF warning light on is a bad idea. %%EOF It is a clockwise-facing circular arrow with X on it. The Od2 Why is my check engine or service engine soon turned on? Check engine light with down arrow comes on while driving and shifts out of gear (I'm guessing). If the light is yellow, it indicates that the problem is less severe and the vehicle can be driven but should be taken to a mechanic as soon as possible for diagnosis and repair. Engine doesnt go past 2 RPMs but still doesnt move unless put in L2. In most cases, however, the car will continue to run normally. Two versions of daytime running lights indicator exist. In that case, call your service department or mobile repair technician at the earliest. The tech before me replaced the fuel pressure regulator and another sensor on the pump. Lets get to know the reasons why the issue can happen. Press question mark to learn the rest of the keyboard shortcuts. The Past Few Weeks My Check Engine Light Has Been Coming On And Then Going Off. Follow the instructions below to reset the Engine Oil Filter Light on your Isuzu NPR: Turn the ignition switch to the ON position. However, if the throttle is not tight, tighten it and ensure you hear a loud click, then start the car. Check engine light with a down arrow appears in particular vehicles with an ECT system that requires care as soon as possible. Your'e done. In either case, it indicates an urgent issue that you should address ASAP. If the engine light is steady and theres no performance loss, the problem isnt too urgent. The DPD or DPF is a type of emissions control system. Your actions should depend on that information to drive safely on the road and reduce the maintenance cost. It comes on when there is a critical engine fault that requires shutdown. Let us diagnose. I tried bypassing the external filter - same problem. This is my work truck, its an Isuzu NQR chassis, engine is a 4HKI-TC. Aug 12, 2011. Connect leads 4 and 6 of the diagnostic socket under the instrument panel. Quick Answer: How To Reset 2017 Sienna Maintenance Light, Quick Answer: How To Reset 2017 Tundra Maintenance Light, How To Reset Maintenance Light Camry 2017, How To Reset 2017 Camry Maintenance Light, Question: How To Reset 2017 Tacoma Maintenance Light, Question: How Do I Reset 2017 Lancer Maintenance Light, How To Reset 2017 Honda Crv Maintenance Light, Quick Answer: How To Reset 2017 Honda Pilot Maintenance Light, How To Reset 2017 Nissan Altima Maintenance Light, Quick Answer: How To Reset 2017 Volvo Xc60 Maintenance Light, How To Reset Engine Maintenance Light Corolla 2017. However, these sensors have to tolerate extremely high temperatures and are prone to fail when your vehicle crosses 80,000 miles. Diesel particulate filters (DPF) are devices that physically capture diesel particulates to prevent their release to the atmosphere. Engine light & fault reset tools here http://www.diagnostic-world.com/ In that case, pull off the road and drain water from the fuel filter immediately. How Much Should Engine Flush Cost? Otherwise, call a mechanic for help. When the. Park the truck and turn off the engine when you see it. You can then contact the dealer or mechanic for diagnosis. Spark plugs are responsible for generating an electric spark to crank your engine. Thank You to anyone who can answer my question! I also made a failed attempt at replacing the SCV. Were not going to be starting the vehicle up. Your email address will not be published. It comes on momentarily when you start the engine and goes off. However, a flashing engine light indicates a more pressing concern that requires immediate attention. I recently wrestled with similar problem on Isuzu NPR, 5.2L, trouble code P0087. Your Isuzu truck communicates with you through the dashboard symbols. It prevents wheels from locking, giving you steering control under heavy load or slippery road conditions. There are two knobs in the instrument cluster, press RIGHT one repeatedly until you see the Engine Oil Filter. Create an account to follow your favorite communities and start taking part in conversations. It shows that your trucks engine is overheating, which can be due to a low coolant level or a faulty cooling system. Try to tighten the gas cap, as its one of the common reasons for illuminated engine light. 0000014829 00000 n The mass airflow sensor in your vehicle measures how much air enters the engine. No Brake Fluid Coming Out When Bleeding: The Causes and How to Fix, 15 PENSKE Truck Warning Lights: Video Included. Service vehicle soon (SVS) indicator is an amber light of a car and a wrench or spanner inside it. Solving such a problem is quite costly, ranging from $ 300 to $1500, including labor. ISUZU TRUCK 8 10 xlOOOr/min ULTRA LOW SULFUR DIESEL FUEL ONLY BRAKE 22 20 17 13 40 20 040 020 50 so do 70 . https://www.2carpros.com/articles/engine-overheating-or-running-hot and Code 84 is a generic power-train failure code. Definition. Self pride and don't want to use faulty equipment? Slowly bring your car to a safe stop and call for roadside assistance. Code Read Retrieval/Clear - Dodge Stratus, Topdon OBD2 Scanner Review - This thing rocks, https://www.2carpros.com/articles/automatic-transmission-problems, https://www.2carpros.com/articles/how-to-service-an-automatic-transmission. When the light appears on the dashboard, you should stop and figure out the problem or take the car for service as soon as possible. Unlike the normal engine light, this light is pretty expensive to repair and needs a professional to correct. Here are answers to some common check engine questions: The engine light (check powertrain light) is a visual indicator on your vehicles dashboard that comes on when theres a problem in your Onboard Diagnostics System (OBD). The check engine light with a down arrow means that the transmission system needs to be checked by a mechanic. How to Find Out What Kind of Engine You Have? However, that doesnt necessarily mean that you need to pull over and call a tow truck right away. First, check if the cables are in good shape. This emoji can mean that something has gone wrong or it can emphasize dislike or disapproval towards something or someone. 0000341476 00000 n Any shop can drop the pan and change the fluid and filter. Roadweekly.com participates in the Amazon Associate program and earns money from qualifying purchases. Check the message center for any information regarding the actual cause. 0000000951 00000 n Also referred to as energy-saving light, the check engine light with a down arrow means that your cars performance can be reduced significantly. How do you reset the oil life on a 2018 Isuzu NPR? If you spot a flashing check engine light, you should pull over immediately. 0000000716 00000 n This light is usually red, but may also be yellow. We have only provided every driver with the most common Isuzu truck warning lights. I haven't seen one have an exhaust light come on and off like that though. 0000010423 00000 n check your flow rates of the injectors, gas well ruin them. When that happens, you should call your service center and schedule a battery service. I Have A 2008 Chevy Equinox Its Displaying Engine Hot Ac Off Then The Check Engine Light Came On Orange Help. Select ENGINE OIL or MAINTENANCE. A few minutes would go by and then the check engine light would come on again and flash. You will then need a shop with the Isuzu program to do it. A faulty oxygen sensor can even damage your spark plugs and catalytic converter, leading to costly repairs. i found that it had 20 gal of gas in it. It can cause more damage to your transmission system. Ask Your Own Car Question Nobody else would touch it because of the mileage. An auto repair shop could charge anywhere between $88 to $144 to run a check engine light diagnosis. The ATF temperature warning light is a red gear and a thermometer inside it. The Isuzu D-Max model is a generic fault indicator that we cannot associate with any fault. Since the engine light can come on for numerous reasons, the ECM also logs a. hb``b``````sf@L@,&J@(A7FAY5p308|`4=K~^f@ l: Oil Capacity 20.5L (21.7 qt.). It should go off. Here, well explain what does engine light with arrow mean and what you should do if it comes on. That very well may be the issue with the light. If they are okay, you may need to contact your mechanic for further diagnosis and problem-solving. The water separator light on an Isuzu is a can with an inlet and outlet with a dripping liquid. Detailed Breakdown. $117, 5.7L V8 Base However, if the problem is left unchecked, it could eventually lead to more serious engine damage.