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1991 Mercury Grand Marquis GS 5.0L Hesitation, Misfire
Here we go again. Car came in with low oil pressure andengine noises. Engine was poorly maintained. I installed areman long block and after it warms up, there is very badtip in hesitation/bucking under light throttle, heavy [...] is most noticeable at 30-40 mp...
FIX posted 8/27/1998
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Message Closed w/FIX
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| VIN | 2MECM74F6M |
| Engine | 5.0 L / 8 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | FI |
| Symptoms | Hesitation, Misfire |
| Occurs | Hot, Under Load |
Message Closed w/FIX
Vehicle Data
1991 Mercury Grand Marquis GS
| VIN | 2MECM74F6M |
| Engine | 5.0 L / 8 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | FI |
| Symptoms | Hesitation, Misfire |
| Occurs | Hot, Under Load |
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