1995 Buick Lesabre problems

1995 BUICK LESABRE
78,000 MILES
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DZEUNER
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I replaced my engine recently & have had probles with the enging bucking when trying to slowly accelerate with speeds over 40mph. I replaced my coil packs & spar plug wires with little improvement. what could it be?
Oct 24, 2013 at 9:46 AM
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JDL
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If problem under load, usually a restriction of some kind, check air restriction-- check fuel pressure-- check clogged exhaust. You could check throttle position sensor. As far as checking for trouble codes, 95 is a cross-over year, if you have a hybrid datalink connector, I can't help you with that type connector.

If your datalink connector is 12 pin and your fully obd1 compliant, you can check codes, yourself.
Oct 24, 2013 at 10:23 AM