Mike Zarnock
Well-known member
Hi there.Had the car out this past weekend (`91 Coupe automatic). When going up a hill or driving slowly, the car will shudder going into high grear. Anybody else have this happen or know what it might be?Thanx!Mike
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Thanx, I will look into that too.jmccloud said:I've had 4 GM cars (all automatics) that shuddered when going into high or when 'lugging' up hill (before an automatic downshift). Sometimes the shudder would turn into a real buck and jump.
All of them were due to a bad plug wire. The first one cost me plenty to have the dealer diagnose it. After that, I just replaced the wires.
Hope this helps.
Plug Wire's "Can" Make them all!! Feel Like the Tranny is Reddy to Take A Dump!! junk!!jsinga said:The plug wires will really cause that with some of the waste fire ignitions.
JS
Mike Zarnock said:Well, I finally found the problem. It was what I thought all along. The lock-up in the convertor was slipping and not fully engaging. So, I sent it out for a full rebuild. I get it back on Friday. I'll let ya know what happens from there.