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1991 Cadillac DeVille 4.9L Poor Idle Quality, MIL Lamp on, no communication
Vehicle idles rough/misfires, service engine soon and service vehicle soon lights are on, fuel mileage data inop, and speedometer inop. These things all happen at the same time and it is intermittent. Usually happens at start-up, sometimes only lasts a minute ...
FIX posted 7/8/2011
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Message Closed w/FIX
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6 Replies Received
6 Replies Received
Related Documents & Media | VIN | 1G6CD53B7M |
| Engine | 4.9 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection |
| Symptoms | Poor Idle Quality, MIL Lamp on, No Communication |
| Occurs | Intermittently |
Trouble Codes
| 52 | PCM Memory Reset |
Message Closed w/FIX
Vehicle Data
1991 Cadillac DeVille
| VIN | 1G6CD53B7M |
| Engine | 4.9 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection |
| Symptoms | Poor Idle Quality, MIL Lamp on, No Communication |
| Occurs | Intermittently |
Trouble Codes
| 52 | PCM Memory Reset |
Video