
1989 Chevrolet R2500 Suburban Scottsdale 7.4L High Idle
Engine rpm is 750 to 775 in gear, iac showes 80, when you put it back in park rpm goes to 1500 and stays there, iac still showes 80. If you kill engine and restart it idle is about 800 to 850 and iac showes 10 to 15. tps checks good, p/n switch shows good, all...
Summary posted 4/1/2004
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Message Closed w/Summary
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VIN | 1GNGR26N0K |
Engine | 7.4 L / 8 cyl / GAS |
Trans | 4-speed Automatic |
Delivery | FI / TBI |
Emissions | ca emissions |
Symptoms | High Idle |
Occurs | Always, Idle |
Message Closed w/Summary
Vehicle Data
1989 Chevrolet R2500 Suburban Scottsdale
VIN | 1GNGR26N0K |
Engine | 7.4 L / 8 cyl / GAS |
Trans | 4-speed Automatic |
Delivery | FI / TBI |
Emissions | ca emissions |
Symptoms | High Idle |
Occurs | Always, Idle |