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1991 Ford Aerostar 4.0L Excessive Emissions, Poor Idle Quality, Hesitation, Surge, Cuts out, Stall, Misfire
Hi group: This one is starting to get me nut!!! it was hit last week on the rear end, customer had it repaired. Brought it in for a tune up, since it was runing very rough. I gave it a lovely tune up.I t didn,t make any difference, the old plugs were v...
FIX posted 12/3/1998
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| VIN | 1FMDA21X8M |
| Engine | 4.0 L / 6 cyl |
| Symptoms | Excessive Emissions, Poor Idle Quality, Hesitation, Surge, Cuts Out, Stall, Misfire |
| Occurs | Always, Hot, on Accel, Idle |
| Misc. | EFI |
Trouble Codes
| 41 | ego leanor not switching |
| 42 | ego rich |
| 96 | bat irratic to fuel pump relay |
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Vehicle Data
1991 Ford Aerostar
| VIN | 1FMDA21X8M |
| Engine | 4.0 L / 6 cyl |
| Symptoms | Excessive Emissions, Poor Idle Quality, Hesitation, Surge, Cuts Out, Stall, Misfire |
| Occurs | Always, Hot, on Accel, Idle |
| Misc. | EFI |
Trouble Codes
| 41 | ego leanor not switching |
| 42 | ego rich |
| 96 | bat irratic to fuel pump relay |
Video