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1987 Buick Century Custom 2.5L MIL Lamp on, Erratic idle
Dear group, I have this Buick that has an idle control circuit that is acting very erratic. It first came in idling way too fast and had code 35, so I replaced what appeared to be a seized IAC valve. After driving it over 40 mph to relearn, it seemed OK. But n...
FIX posted 7/7/2000
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| VIN | IG4AH5IR6H |
| Engine | 2.5 L / 4 cyl / GAS |
| Trans | 3-speed Automatic |
| Delivery | FI / TBI |
| Emissions | Ca Emissions |
| Symptoms | MIL Lamp on, Erratic Idle |
| Occurs | Always, Idle, Intermittently |
Trouble Codes
| 35 | Idle speed cont. circuit IAC valve |
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Vehicle Data
1987 Buick Century Custom
| VIN | IG4AH5IR6H |
| Engine | 2.5 L / 4 cyl / GAS |
| Trans | 3-speed Automatic |
| Delivery | FI / TBI |
| Emissions | Ca Emissions |
| Symptoms | MIL Lamp on, Erratic Idle |
| Occurs | Always, Idle, Intermittently |
Trouble Codes
| 35 | Idle speed cont. circuit IAC valve |
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