Engine miss between 3-4k rpm, '94 Olds 88 LSS...
#1
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My sisters fiance has a Caravan (like a '92 ish) and I guess something in the engine broke so now he'* looking for a new car. He found a '94 Olds 88 LSS at a local dealer. Its a clean car, 87k miles, 1 owner, leather, all the toys... Anyways, he brought it over to have my dad and I look at it and it seems like a flawless car, however the only problem we really saw was that it has a miss between 3-4k rpms. Below and above those rpms it runs smooth and pulls hard. It just seems like its coils or plugs to me. Just making sure thats what others think.
Opinions?
Thanks,
Shawn
Opinions?
Thanks,
Shawn
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Hmm.....When was the fuel filter replaced? Sometimes a bad fuel filter can cause a miss. Had it happen in a work truck once
#5
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my 94 eighty eight has run perfect, and I really do mean perfect for the price range it was in (1/2 cost of comparable bonnie SE models). The only thing in the engine bay I have replaced is the oil filter, air filter, and plugs. This car had NOT RUN for 4 years or so, charged the battery and off it went.
I get a minor hesitation at 1000-1400 rpmish, only problem I can tell. My grandma has a 94 88 lss (*dont laugh lol) purchased new, she has never had a repair of any kind in 70K or so, never needed any on-warranty work either and she drives quite aggressive for someone over 50 (no offense, lol) No parts ever needed other than oil changes and when she lost her key. The car was also stolen for 6 months, then recovered with no mechanical damage what so ever.
Sounds like coil/icm/ignition or possible sensor/emisions problem though. Should not be too bad to figure out.
The L27s are quite solid engines. and really easy to work on compared to most, at least on the top side.
keep in mind the hybrid pcm thing
I get a minor hesitation at 1000-1400 rpmish, only problem I can tell. My grandma has a 94 88 lss (*dont laugh lol) purchased new, she has never had a repair of any kind in 70K or so, never needed any on-warranty work either and she drives quite aggressive for someone over 50 (no offense, lol) No parts ever needed other than oil changes and when she lost her key. The car was also stolen for 6 months, then recovered with no mechanical damage what so ever.
Sounds like coil/icm/ignition or possible sensor/emisions problem though. Should not be too bad to figure out.
The L27s are quite solid engines. and really easy to work on compared to most, at least on the top side.
keep in mind the hybrid pcm thing
#8
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Originally Posted by Damemorder
Sounds like a weak coil/icm. Try swapping in a known good, I'm sure you could hear the difference.
Shawn
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