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1998 GMC K3500 Sierra SL 7.4L Poor Idle Quality, Cuts out, Misfire
This vehicle is from one of my car lot accounts. Came to us with very rough idle, very low on power. Found #4 injector to be incorrect injector,replaced it along with a new fuel rail(hold down clips broken)still multiple misfires intermittently, always #4, and...
Summary posted 4/1/2013
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Related Documents & Media | VIN | 1GDHK33J1W |
| Engine | 7.4 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection / SEFI |
| Emissions | OBD-II Compliant |
| Symptoms | Poor Idle Quality, Cuts Out, Misfire |
| Occurs | Always |
Trouble Codes
| P0141 | Heated Oxygen Sensor (Bank 1 Sensor 2) Heater Circuit Malfunction |
| P0302 | Cylinder 2 Misfire Detected |
| P0304 | Cylinder 4 Misfire Detected |
Message Closed w/Summary
Vehicle Data
1998 GMC K3500 Sierra SL
| VIN | 1GDHK33J1W |
| Engine | 7.4 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection / SEFI |
| Emissions | OBD-II Compliant |
| Symptoms | Poor Idle Quality, Cuts Out, Misfire |
| Occurs | Always |
Trouble Codes
| P0141 | Heated Oxygen Sensor (Bank 1 Sensor 2) Heater Circuit Malfunction |
| P0302 | Cylinder 2 Misfire Detected |
| P0304 | Cylinder 4 Misfire Detected |
Video