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2002 GMC Sierra 1500 SL 5.3L Poor Idle Quality, Misfire, MIL Lamp on
I have multiple random cylinder missfires occuring mostly when cold. Fuel pressure is 48psi with koer,53psi with koeo, and 58 psi koer with vac line removed from regulator. My spec shows that fuel pressure needs to be 56-62 but does not state with koer, koeo, ...
FIX posted 2/8/2006
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Message Closed w/FIX
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14 Replies Received
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Related Documents & Media | VIN | 1GTEK14T12 |
| Engine | 5.3 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / mpfi |
| Emissions | OBD-II Compliant |
| Symptoms | Poor Idle Quality, Misfire, MIL Lamp On |
| Occurs | Cold, Idle |
Trouble Codes
| P0300 | Multiple Misfire Detected |
Message Closed w/FIX
Vehicle Data
2002 GMC Sierra 1500 SL
| VIN | 1GTEK14T12 |
| Engine | 5.3 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / mpfi |
| Emissions | OBD-II Compliant |
| Symptoms | Poor Idle Quality, Misfire, MIL Lamp On |
| Occurs | Cold, Idle |
Trouble Codes
| P0300 | Multiple Misfire Detected |
Video