When does the engine protection light come on?
During normal driving, the coolant sensor must be left “UNPLUGGED” in order to keep the truck running. During rain, I don’t have a problem until some of the 4-wheelers start passing me, and putting the fine mist into the air. Then, the “ENGINE PROTECTION” light comes on.
Why is my Check Engine light still on after filling up?
The cap is a crucial part of a car’s fuel delivery system. It notably prevents gasoline fumes from leaving the fuel tank, and it helps keep the whole system under the correct pressure. If your check engine light turns on immediately after a fill-up, pull over and make sure the cap isn’t loose — or still on your car’s roof.
What was the cause of the C-12’s engine failure?
This is a long, straight grade reaching 6% in several places. Naturally, there was heavy use of the Jake brake. The C-12 waited to throw the rod until we were going through Idaho Falls at about 55 MPH. The official failure analysis by Western States CAT was that the #3 rod bearing spun and caused stress on the rod bolts which broke.
Can a bad check engine light be a bad TPS?
The check engine light will randomly turn on and off even if the car is running smoothly without any jerks and stalling. This is often the first ever symptom of a bad TPS. Using a code reader, you should be able to confirm whether a faulty TPS is the culprit or a different component.
How do you shut off a check engine light?
With the key in the ignition, turn it to the first notch. Reverse the actions of the first step by plugging the PCM fuse back into the PDC. Go back and start the truck to make sure that the check engine light has been shut off. If it didn’t work, try again. Once you’ve got it to work, put back the cover for the PDC and close the hood of your truck.
How to check engine protection in a truck?
Couple things you can check. Pull the plug out of the ecm and check for any corrosion on the pins in the ecm or the plug. It could also be loose or corroded inside the harness plug at the sensor. If you don’t see anything obvious just looking at the connectors you would have to pull the pins out to check the crimps.
Why does my check engine light keep turning on?
On average, a quality O2 sensor will set you back about $175, but the cost of labor will vary greatly depending on the vehicle’s make and model, as well as your geographical location. Finally, keep in mind that most late-model cars have more than one O2 sensor. A loose fuel cap is one of the most common reasons why the check engine light turns on.