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1991 GMC G3500 Rally 5.7L Hesitation
Hello everyone, This van has a noteable hesatation just off idle, I did a voltage sweep of TPS with Vantage which reveals normal smooth reading .70 idle to 4.50 WOT, Throttle body was very dirty, removed, cleaned, run MotorVac and no improvement Scoped Ignitio...
FIX posted 10/31/2001
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Message Closed w/FIX
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| VIN | 1GTGG35K5M |
| Engine | 5.7 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / TBI |
| Symptoms | Hesitation |
| Occurs | Always |
Message Closed w/FIX
Vehicle Data
1991 GMC G3500 Rally
| VIN | 1GTGG35K5M |
| Engine | 5.7 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / TBI |
| Symptoms | Hesitation |
| Occurs | Always |
3 Replies Received
3 Replies Received
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