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1990 Cadillac DeVille 4.5L Poor Idle Quality, Hesitation, Surge, Misfire
Got his car several months ago. Egr was leaking badly and plugs fouled (no vacuum to egr at idle). Replace both and did not correct problem. Tested injector resistence and found 3 bad ones. Replaced them. Still no better. Road tested and got it hot and reteste...
FIX posted 11/1/2006
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13 Replies Received
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Related Documents & Media | VIN | 1G6CD5336L |
| Engine | 4.5 L / 8 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | FI / Port |
| Symptoms | Poor Idle Quality, Hesitation, Surge, Misfire |
| Occurs | Hot |
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Vehicle Data
1990 Cadillac DeVille
| VIN | 1G6CD5336L |
| Engine | 4.5 L / 8 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | FI / Port |
| Symptoms | Poor Idle Quality, Hesitation, Surge, Misfire |
| Occurs | Hot |
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