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1991 Cadillac DeVille 4.9L Poor Fuel Economy
customer came in with a hard cold start problem. found fuel pressure regulator was bad-allowing fuel to drain down overnight. ever since regulator was replaced he says his fuel economy has droppod from @19 to @16. this car has had new injectors and a tune-...
FIX posted 10/26/1999
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Message Closed w/FIX
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| VIN | 1G6CD53B6M |
| Engine | 4.9 L / 8 cyl |
| Symptoms | Poor Fuel Economy |
| Occurs | Always |
Message Closed w/FIX
Vehicle Data
1991 Cadillac DeVille
| VIN | 1G6CD53B6M |
| Engine | 4.9 L / 8 cyl |
| Symptoms | Poor Fuel Economy |
| Occurs | Always |
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