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1991 Cadillac DeVille 4.9L Poor Idle Quality, Hesitation, Stall, Poor Fuel Economy, MIL Lamp on
This Cadillac 4.9 has 166,000 miles, Intermittently the engine will(hot/cold)stumble/hesitate, exhaust is black, Checking with the TECH I when this happens the readings are as follows; Coolant Temp shows -38F, MAT Sensor shows -38F, MAP shows 103, Throttle Ang...
FIX posted 5/18/2005
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Related Documents & Media | VIN | 1G6CD53B3M |
| Engine | 4.9 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / SEFI |
| Emissions | OBD I |
| Symptoms | Poor Idle Quality, Hesitation, Stall, Poor Fuel Economy, MIL Lamp On |
| Occurs | Cold, Hot, Intermittently |
| Misc. | Sedan Deville |
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Vehicle Data
1991 Cadillac DeVille
| VIN | 1G6CD53B3M |
| Engine | 4.9 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / SEFI |
| Emissions | OBD I |
| Symptoms | Poor Idle Quality, Hesitation, Stall, Poor Fuel Economy, MIL Lamp On |
| Occurs | Cold, Hot, Intermittently |
| Misc. | Sedan Deville |
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