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1990 Cadillac DeVille 4.5L Extreme high idle
The original complaint from the customer was a 'clicking' in the accelerator pedal. When I got the vehicle it was clicking and that turned out to be the plunger on the ISC walking off the end of the threads on the actuator. I've got a Vetronix Mastertech s...
FIX posted 11/2/1998
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Message Closed w/FIX
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| VIN | 1G6CD5334L |
| Engine | 4.5 L / 8 cyl |
| Emissions | Federal |
| Symptoms | Extreme High Idle |
| Occurs | Always |
Trouble Codes
| 26 | Shorted idle switch circuit |
| 30 | ISC circuit |
Message Closed w/FIX
Vehicle Data
1990 Cadillac DeVille
| VIN | 1G6CD5334L |
| Engine | 4.5 L / 8 cyl |
| Emissions | Federal |
| Symptoms | Extreme High Idle |
| Occurs | Always |
Trouble Codes
| 26 | Shorted idle switch circuit |
| 30 | ISC circuit |
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