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Need Diagnostic Help

posted by  780v8 on  Wed Aug 6 08:40 CST 2008
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last visit: Mon Nov 5 16:13 CST 2012
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I've been having an ongoing but intermittent issue with my car. The drivetrain is stock '91 Lincoln LSC (5.0 w/AOD). It has been driving fine for several days. Today it started up and idled OK, but when I accelerated up the hill it sputtered and would not rev past 3500 rpm or downshift. When I back off the throttle, it will idle and will accelerate gently (thanks to the V8's torque) uphill. I suspected the fuel pump and have a test light connected to it. The light stayed on throughout the event (suggesting that the FP is not the issue). This scenario has occurred in similar fashion a few times, then magically it will run fine again until the next occurance. On days when it runs fine, it runs great!

Does anyone have any thoughts or suggestions?

Thanks,
Andy Schor
'91 745 V8





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