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1987 GMC R1500 5.7L Poor Idle Quality, Hesitation, Surge
Customer complaint of poor accel and downshifts at cruise speed [55 to 65 mph], I roadtested truck and found this to be true. also noted early upshifts and lockup engagement, adjusted tvi cable helped early upshifts but no change to down shifts at cruise speed...
FIX posted 1/11/2001
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| VIN | 1GTDR14KOH |
| Engine | 5.7 L / 8 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | FI / TBI |
| Emissions | US FEDERAL |
| Symptoms | Poor Idle Quality, Hesitation, Surge |
| Occurs | Always, Hot, on Accel, Cruise, Idle, Intermittently |
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Vehicle Data
1987 GMC R1500
| VIN | 1GTDR14KOH |
| Engine | 5.7 L / 8 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | FI / TBI |
| Emissions | US FEDERAL |
| Symptoms | Poor Idle Quality, Hesitation, Surge |
| Occurs | Always, Hot, on Accel, Cruise, Idle, Intermittently |
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