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2003 Chevrolet Monte Carlo LS 3.4L Poor Idle Quality, Hesitation
This vehicle came in with a hesitation complaint. We noticed a collapsed vacuum line on the evap solenoid and that the ect was unplugged which account for the ect code. This vehicle will run great then all of a sudden the fuel trims go to -20 and it starts sur...
FIX posted 5/27/2013
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Message Closed w/FIX
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19 Replies Received
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Related Documents & Media | VIN | 2G1WW12E43 |
| Engine | 3.4 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection |
| Emissions | OBD-II Compliant |
| Symptoms | Poor Idle Quality, Hesitation |
| Occurs | Intermittently |
Trouble Codes
| P0118 | Engine Coolant Temperature Sensor Circuit High Voltage |
| P0420 | Catalyst Efficiency Below Threshold (Bank 1) |
| P1635 | 5-Volt Reference 'A' Circuit Malfunction |
Message Closed w/FIX
Vehicle Data
2003 Chevrolet Monte Carlo LS
| VIN | 2G1WW12E43 |
| Engine | 3.4 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection |
| Emissions | OBD-II Compliant |
| Symptoms | Poor Idle Quality, Hesitation |
| Occurs | Intermittently |
Trouble Codes
| P0118 | Engine Coolant Temperature Sensor Circuit High Voltage |
| P0420 | Catalyst Efficiency Below Threshold (Bank 1) |
| P1635 | 5-Volt Reference 'A' Circuit Malfunction |
Video