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1991 Cadillac DeVille 4.9L Poor Idle Quality, Surge, Misfire
weird one here, 4.9 cad dev with erratic idle quality intermitent,surges up and down runs rough,then smoothes out for 5 min or so then acts up [...] fuel pressure and volume was winin specs, ck egr operation was ok,watching scanner when happening timing is jum...
FIX posted 11/4/2004
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Related Documents & Media | VIN | 1G6CD53B9M |
| Engine | 4.9 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / port |
| Emissions | fed |
| Symptoms | Poor Idle Quality, Surge, Misfire |
| Occurs | Idle, Intermittently |
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Vehicle Data
1991 Cadillac DeVille
| VIN | 1G6CD53B9M |
| Engine | 4.9 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / port |
| Emissions | fed |
| Symptoms | Poor Idle Quality, Surge, Misfire |
| Occurs | Idle, Intermittently |
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