
1994 GMC G2500 Vandura 5.7L Poor Idle Quality
Thanks for your time. The van idles at about 1800 rpm. The scanner shows iac position at 150, as it wrms up it goes to about 99. I removed the iac valve and when I plug the hole with my finger, the idle drops to 700 rpm. The iac plunger is observed to move whe...
FIX posted 3/28/2006
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Message Closed w/FIX
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VIN | 1GKEG25KOS |
Engine | 5.7 L / 8 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | FI / tbi |
Symptoms | Poor Idle Quality |
Occurs | Always |
Message Closed w/FIX
Vehicle Data
1994 GMC G2500 Vandura
VIN | 1GKEG25KOS |
Engine | 5.7 L / 8 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | FI / tbi |
Symptoms | Poor Idle Quality |
Occurs | Always |