|
1999 GMC C3500 Sierra SL 7.4L Poor Idle Quality, Poor Fuel Economy
came in with miss and running rough. found a miss fire on #3 installed plugs and wires,still had miss replaced [...] compression test very low on 3 about 90 psi replaced engine test drive did ok cust drove come back skipping on number 5 and 7 we checked fuel p...
FIX posted 5/19/2013
iATN Members:
Login to view full TechHelp request Auto Repair Pros: Join iATN to read this TechHelp request Vehicle Owners: Find a nearby iATN member to repair your vehicle 13 Replies Received (View Replies)13 Replies Received (Hide Replies)
|
Message Closed w/FIX
|
13 Replies Received
13 Replies Received
Related Documents & Media | VIN | 1GDKC34J9X |
| Engine | 7.4 L / 8 cyl / GAS |
| Trans | 5-speed Standard |
| Delivery | Fuel Injection / sefi |
| Emissions | OBD-II Compliant |
| Symptoms | Poor Idle Quality, Poor Fuel Economy |
| Occurs | Always |
Trouble Codes
| P0141 | Heated Oxygen Sensor (Bank 1 Sensor 2) Heater Circuit Malfunction |
| P1133 | Heated Oxygen Sensor (Bank 1 Sensor 1) Insufficient Switching |
Message Closed w/FIX
Vehicle Data
1999 GMC C3500 Sierra SL
| VIN | 1GDKC34J9X |
| Engine | 7.4 L / 8 cyl / GAS |
| Trans | 5-speed Standard |
| Delivery | Fuel Injection / sefi |
| Emissions | OBD-II Compliant |
| Symptoms | Poor Idle Quality, Poor Fuel Economy |
| Occurs | Always |
Trouble Codes
| P0141 | Heated Oxygen Sensor (Bank 1 Sensor 2) Heater Circuit Malfunction |
| P1133 | Heated Oxygen Sensor (Bank 1 Sensor 1) Insufficient Switching |
Video