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1988 GMC R1500 Suburban 5.7L Poor Idle Quality, Surge, Stall, MIL Lamp on
Engine, after closed loop, intermittantly surges and MIL comes on. Always a code 42. Excessive idle. When in gear at idle, IAC counts rise up to 133+. After put into park, RPM to 2000 and slowly returns to 40 to 50 counts. Never at the normal 25 and lower. Som...
FIX posted 1/10/2003
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Message Closed w/FIX
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11 Replies Received
11 Replies Received
Related Documents & Media | VIN | 1GKER16K3J |
| Engine | 5.7 L / 8 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | FI / TBI |
| Emissions | US FED |
| Symptoms | Poor Idle Quality, Surge, Stall, MIL Lamp On |
| Occurs | Hot, Idle, Intermittently |
Trouble Codes
| 12 | No engine speed ref |
| 13 | O2 sensor circuit |
| 14 | Coolant sensor circut |
| 42 | est problem |
Message Closed w/FIX
Vehicle Data
1988 GMC R1500 Suburban
| VIN | 1GKER16K3J |
| Engine | 5.7 L / 8 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | FI / TBI |
| Emissions | US FED |
| Symptoms | Poor Idle Quality, Surge, Stall, MIL Lamp On |
| Occurs | Hot, Idle, Intermittently |
Trouble Codes
| 12 | No engine speed ref |
| 13 | O2 sensor circuit |
| 14 | Coolant sensor circut |
| 42 | est problem |
Video