I have a 95 Buick Lesabre I had the motor rebuilt it
was driving good I sot it down for 4 months and I
get in it to go to the store and it wouldn't go pass
40 miles it have a straight pipe on it so the cat is
not stopped up and the transmission changes out
what could be the problem
It sucked a valve.
I would take it back to the motor rebuilder and see what they say.
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