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1991 Chevrolet C1500 Cheyenne 5.7L High Idle
Vehicle starts and runs fine but idles at about 1400 r.p.m's in closed loop. The I.A.C. counts are 39 while the idle is high. If the vehicle is put in gear( drive or reverse ), the idle will gradually come down to 700 r.p.m's. The I.A.C. counts come down when ...
FIX posted 6/11/2001
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Message Closed w/FIX
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| VIN | 1GCDC14K3M |
| Engine | 5.7 L / 8 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | FI / T.B.I. |
| Emissions | CA Emissions |
| Symptoms | High Idle |
| Occurs | Hot, Idle |
Message Closed w/FIX
Vehicle Data
1991 Chevrolet C1500 Cheyenne
| VIN | 1GCDC14K3M |
| Engine | 5.7 L / 8 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | FI / T.B.I. |
| Emissions | CA Emissions |
| Symptoms | High Idle |
| Occurs | Hot, Idle |
10 Replies Received
10 Replies Received
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