How do you reset the check engine light on a 2008 Duramax?
Clear it with a scanner or pull the negative battery cables and let it sit for 5 mins. Then reattach and should be gone. Pump your brake pedal If you dont wanna wait 5 mins.
Why would a check engine light come on in a diesel truck?
Your “Check Engine Light” is simply a warning light that has received information from a sensor connected to your vehicle’s ECM, or “engine control module”. It can be an indicator of needed maintenance, or it could also be warning you of a major component failure.
How do you reset the check engine light on a Chevy 2500hd?
Disconnect the Battery You will then need to put your key into the ignition and turn it to the “on” position about three times. Ideally, this will clear the data, turning off the light. You can then reconnect the battery and turn the ignition on. After about a minute, the check engine light should be off.
What does the check engine light indicate?
The check engine light doesn’t mean there is one particular issue wrong with your vehicle, but is an indicator that there is an issue with your vehicle that needs to be addressed and diagnosed as soon as possible. It could indicate anything from your gas cap being loose to a serious engine problem.
Can Bad DEF cause check engine light?
With recent regulations, laws have caused engine manufacturers to add diesel particulate filters (DPFs) to its aftertreatment standards, which help to further manage exhaust levels. This means even something as small as your diesel exhaust fluids being low could trigger your check engine light.
Will the check engine light come on if the DEF fluid is low?
Generally, a warning light will come on when DEF needs to be added soon. If the light is ignored for too long, the vehicle will likely go into a reduced power mode. If the DEF level falls too low, the engine will not start until fluid is added.
What happens if DEF tank is empty?
Before your DEF tank ends up empty, you will see an alert on your dash in the form of the DEF light. If your DEF drops below 2.5%, the light will be a solid amber. If you ignore the solid red, your vehicle speed will be reduced to a snail’s pace – 5 miles per hour – until you top up the DEF tank.
What’s the Check Engine light on a Duramax?
Started up fine. Only thing i noticed was that the oil pressure was pegged out at 120 and the battery was around 10 or 11 marker on the gauge. Ran and drove fine. Keep in mind the temp was around 18F this morning when i left for work. You will need a scanner to pull the codes.
What is glowplug fault on GMC Duramax Diesel?
P133F is #8 glowplug hot resistance fault. Did you determine if the Elevated Idle is enabled? Are you using remote start? If not, are you giving waiting for glowplug light to go out before turning key to ‘start’? Elevated idle was not activated….it is now though.
When did the Check Engine light go out?
So the check engine light went out on Sunday. Then on Monday i did a remote start using the fob (not the app) and for some reason it failed. When i got in the truck, waited for the plug light to go out, and started the truck, the check engine light was back on. Took it for a scan and the P133F code showed up 3 times.
Why does my GMC Duramax have high oil pressure?
High oil pressure at cold weather start up is normal for these engines. Remote start and a little time letting the Elevated Idle function do it’s thing before driving the truck goes a long way to warming the oil enough start the pressure drop process.