Question:
So far things that I replaced;
plugs, wires, 6 new injectors.
Stuff tested;
ignition module- OK
no vacuum leak on outside of intake-ok
test light for #6 injector-OK
EGR -OK
crank, cam,TPS,map sensor- OK
When engine is cold it has no missfire. #6 is the only one missing.
Also has no missfire when driving 65-70mph.
Only misses under load or when stopped at stop sign.
Answers:
where are the other two freeze plugs in my 1993 buick lesabre?
It's pretty hard to tell if it misses at 65 mph, isn't it? Maybe it is still missing then. I'm thinking an intermittent problem with the coil pack that was not discovered by testing. These cars were known for this.Rats have chewed through my cruise control wires. Should I sell my car in case of other damage?
bout the only thing left is the distributor cap itself...if it was a valve it would do it all the time.....but it sounds like a bad plug or plug wire...I know you have covered that but check to make sure it's not grounding out. open the hood at night with all lights off and look for an arc somewhere...that should tell you.Are you allowed the buy the parts needed to fix your car and just pay for the labor?
could be valve seal,defintly somethig wrong with head or parts in itWhat happens when I put plus gas in a regular gas only car?
Check for spark tracking on #6 plug. or could have cracked porcelain or defective new plug.Try insulative plug grease.i have the same car you got.mine is a 3.8 and mine use to do that till i changed the coil pach and module,and i also changed the gas filter.now its ok.
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