MY 08 Duramax wont turn over! I changed the fuel Filter ran for a week and again died on me! Code reads Water in fuel service required! Pulled drain plug but no water came out! HELP PLEASE! Thanks
Thanks for the respond Cosmosotis. I got it to start! I put a new water sensor from Oreillys !But now it reads Reduce Power.
I disconnected the batterys to see if the code comes off. Ill post if any success! Thanks again
Most any parts store will/can read any stored codes for you. If it's a fuel limp, it will reset after several key cycles, once you've cured the fuel supply issue.
Review Strategy Based Diagnosis for an overview of the diagnostic approach.
Diagnostic Procedure Instructions provides an overview of each diagnostic category.
Circuit/System Description
If there is water in the fuel system, the water in fuel sensor switch will close and produce a low voltage on the signal circuit. When the engine control module (ECM) detects a low signal from the water in fuel sensor the ECM will send a serial data message to the instrument panel cluster (IPC). The IPC will then illuminate the WATER IN FUEL SERVICE REQUIRED message in the driver information center (DIC).
Circuit/System Testing
Ignition OFF, disconnect the harness connector at the water in fuel sensor.
Ignition OFF, test for less than 1.0 ohm of resistance between the ground circuit terminal B and ground.
If greater than 1.0 ohm, test the ground circuit for an open/high resistance.
Verify the scan tool Water In Fuel Sensor parameter is No Water.
If not No Water, test the signal circuit terminal A of the water in fuel sensor for a short to ground. If the circuit tests normal, replace the ECM.
If all circuits test normal, test or replace the water in fuel sensor.
Repair Instructions
Perform the Diagnostic Repair Verification after completing the diagnostic procedure
OK guys got a call from the Dealer and they say its the Pedal. The pedal has 2 censor and one is going out. For $350 they can replace and for $250 they do a fuel sample to see if any water in the fuel. They aslo said that in my case the water in fuel would not reduce engine power. Any thoughts and comments would be appreciated! Thanks
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