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1988 Mercury Grand Marquis GS 5.0L Excessive Emissions, Poor Idle Quality, Hesitation, Surge, Cuts out, Poor Fuel Economy
This one has been around two weeks too long, The first time I saw the car it was idleing rough and the customer turned up the idle and was ok with that. Next fuel pump went out and we fixed that. Two weeks later the Fuel pressure regulated diaphram busted and ...
FIX posted 11/23/2001
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Related Documents & Media | VIN | 2MEBM74F7J |
| Engine | 5.0 L / 8 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | FI / SEFI |
| Emissions | US |
| Symptoms | Excessive Emissions, Poor Idle Quality, Hesitation, Surge, Cuts Out, Poor Fuel Economy |
| Occurs | Always, Cold, on Decel, Cruise, Idle |
Trouble Codes
| 12 | idle low |
| 18 | loss of spout |
| 34 | evap/pfe high |
| 42 | rich |
| 92 | ego rich |
Message Closed w/FIX
Vehicle Data
1988 Mercury Grand Marquis GS
| VIN | 2MEBM74F7J |
| Engine | 5.0 L / 8 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | FI / SEFI |
| Emissions | US |
| Symptoms | Excessive Emissions, Poor Idle Quality, Hesitation, Surge, Cuts Out, Poor Fuel Economy |
| Occurs | Always, Cold, on Decel, Cruise, Idle |
Trouble Codes
| 12 | idle low |
| 18 | loss of spout |
| 34 | evap/pfe high |
| 42 | rich |
| 92 | ego rich |
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