Code Po476 ????
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Code Po476 ????
I have an 95 psd and i have a code po476 its a .... exhaust pressure control value ?? the symptons my trucks has is almost like the tranny is slipping truck doesn't want to seem to move , lots of noise but no acceleration. ? any ideas ?
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From: MICHIGAN
KOER DIAGNOSTIC TROUBLE CODE (DTC) 0476
- DTC 0476 indicates an exhaust back pressure control valve performance malfunction was detected during KOER On-Demand Self Test.
- Possible causes:
- Stuck or damaged butterfly
- Misadjusted or damaged linkage
- Restricted exhaust
- Exhaust leaks
- Faulty PCM
- EPR valve
- EBP sensor
- If KOEO EBP faults are present, repair them before continuing.
- Visually inspect butterfly tang below
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