Q: 2002 duramax went into limp mode after fluid ad filter change

asked by on

changed the transmission fluid and filter.on mt 02 duramax Started it up put in gear. vehicle flashed a check engine light. Would not shift on forward gear. reverse works. oBD p0872 and p0700 code occurred/ All I did was change the fluid! What do I NEEd to DO To Fix it?

My car has 300000 miles.
My car has an automatic transmission.

Hello, I can help you with this! When doing a transmission service for this vehicle, you will set a (DTC) trouble code for a low pressure condition with transmission. This is a normal condition when replacing the filter and fluid. The first plan of action would be to clear the code. You would need I scan tool or code reader that is able to perform this function.I recommend that you have a professional technician from YourMechanic come to your location to clear this code and take a look at your check engine light. The body code is a separate issue that could be look at that time also.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. 2002 duramax went into limp mode after fluid ad filter change

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: I drove my car about 50 miles without the oil cap it started rattling and cut off and now it wont crank

Having driven that far with no oil cap, it is likely that the engine oil level ran low enough to cause engine damage, possible seizing the engine. If that is what happened, adding oil will not help once the engine...

Q: When it turns on it does not move forward, but does move in reverse easily.

The transmission in your GMC truck will need to be taken out and disassembled for inspection. It probably needs to be rebuilt or exchanged with a rebuilt or used transmission. I'd recommend getting some help from a qualified technician...

Q: Won't shift out of second gear - 2000 GMC Sierra 2500

Hello. This definitely sounds like an electronic transmission control issue. It could be something as simple as a transmission range selection switch or something as serious as a transmission valve body. You may want to consult with a transmission shop...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.