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1991 Cadillac DeVille 4.9L Poor Idle Quality, Hesitation, Surge, Cuts out, Stall, Misfire, MIL Lamp on
Hello again, This weeks monster arrived on saturday. The comlaint was of erratic running, check engine light on, multiple codes, stalling and so on. Scanned motor with no out of spec values other than the coolant sensor. Replaced it,value steady,but pr...
FIX posted 5/7/1999
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| VIN | 1G6CD53B5M |
| Engine | 4.9 L / 8 cyl |
| Symptoms | Poor Idle Quality, Hesitation, Surge, Cuts Out, Stall, Misfire, MIL Lamp On |
| Occurs | Intermittently |
Trouble Codes
| 15 | open coolant sensor circuit |
| 21 | shorted tps |
| 31 | shorted map |
| 34 | map sensor signal too high |
| 37 | shorted mat - 74-mat sig. interupt 98 |
| 70 | intermitent tps71- inter map 73- inter. coolant sensor |
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Vehicle Data
1991 Cadillac DeVille
| VIN | 1G6CD53B5M |
| Engine | 4.9 L / 8 cyl |
| Symptoms | Poor Idle Quality, Hesitation, Surge, Cuts Out, Stall, Misfire, MIL Lamp On |
| Occurs | Intermittently |
Trouble Codes
| 15 | open coolant sensor circuit |
| 21 | shorted tps |
| 31 | shorted map |
| 34 | map sensor signal too high |
| 37 | shorted mat - 74-mat sig. interupt 98 |
| 70 | intermitent tps71- inter map 73- inter. coolant sensor |
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