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2003 GMC Safari 4.3L Misfire, MIL Lamp on
HI.I have a miss fire # 3 cylinder @ idle in closed loop [...] test leak down test all check [...] @ fuel tested [...] miss fire will go away when I hold pressure on # 3 cylinder exhaust rocker arm running @ idle.I already replaced all the lifters & intake man...
FIX posted 5/6/2014
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Message Closed w/FIX
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23 Replies Received
23 Replies Received
Related Documents & Media | VIN | 1GKDM19X23 |
| Engine | 4.3 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection |
| Emissions | OBD-II Compliant |
| Symptoms | Misfire, MIL Lamp On |
| Occurs | Hot, Idle |
Trouble Codes
| P0303 | Cylinder 3 Misfire Detected |
Message Closed w/FIX
Vehicle Data
2003 GMC Safari
| VIN | 1GKDM19X23 |
| Engine | 4.3 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection |
| Emissions | OBD-II Compliant |
| Symptoms | Misfire, MIL Lamp On |
| Occurs | Hot, Idle |
Trouble Codes
| P0303 | Cylinder 3 Misfire Detected |
Video