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1991 GMC S15 Jimmy SLE 4.3L High idle spd@ start
Here's one for the 'Brain Trust'. A customer's 91 GMC S Blazer 4.3 TBI has an abnormally high idle, 1800 RPM, cold mostly, but occasionaly on a warm restart. It seems to be a software (PROM),issue since IAC counts start high, 45+/-, and drop to 15 within a few...
FIX posted 6/28/2002
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Message Closed w/FIX
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Related Documents & Media | VIN | 1GKDT13Z7M |
| Engine | 4.3 L / 6 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | FI / TBI |
| Symptoms | High Idle Spd@ Start |
| Occurs | Cold, Warm Restart |
Message Closed w/FIX
Vehicle Data
1991 GMC S15 Jimmy SLE
| VIN | 1GKDT13Z7M |
| Engine | 4.3 L / 6 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | FI / TBI |
| Symptoms | High Idle Spd@ Start |
| Occurs | Cold, Warm Restart |
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