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1994 GMC K3500 Sierra SL 7.4L Poor Idle Quality, Cuts out, MIL Lamp on
Posted to GM Driveability on 11/16/2001 5 Replies

hello all,

well I replaced the ecm in this truck because the customer complained of an intermittent rough idle & cutting out but the check engine light would never come on, well after replacing the ecm the problem reared its head ,the check engine light came ...

5 Replies Received (View Replies)

  Related Documents & Media  1994 GMC K3500 Sierra SL

 
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car Vehicle Data

1994 GMC K3500 Sierra SL

VIN 1GDHC34N6R
Engine7.4 L / 8 cyl / GAS
Trans5-speed Standard
DeliveryFI / tbi
SymptomsPoor Idle Quality, Cuts Out, MIL Lamp On
OccursIntermittently

Trouble Codes

4502 sensor rich
Message Closed

car Vehicle Data

1994 GMC K3500 Sierra SL

VIN 1GDHC34N6R
Engine7.4 L / 8 cyl / GAS
Trans5-speed Standard
DeliveryFI / tbi
SymptomsPoor Idle Quality, Cuts Out, MIL Lamp On
OccursIntermittently

Trouble Codes

4502 sensor rich