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Running like CHIT!

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Old Sep 16, 2010 | 03:11 PM
  #1  
Ninespub's Avatar
Ninespub
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Joined: Jan 2003
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From: Saginaw, MI
Default Running like CHIT!

My '91 $$$$4 automatic is stumbling like crazy till I get RPMs high and get it moving. It has dropped to a very rough (4 cyl?) mode intermittently at warm stoplight idles for a few months and yesterday just didn't want to run til I floored it, slammed it into gear and forced it to move. Once I got it rolling and ran it in third gear it cleared up........until I turned it off and came back a few hours later to drive again. Could it be a clogged fuel filter or am I looking at pump(s) or worse yet, MAF or LH? The plugs, wires, and caps are new and the intake has been refreshed with all new sensors, etc, by Davek9, about 6 months ago.

My mechanical abilities are only a decimal point above electrical (which is -.9) and Dave is 100 miles away so unless I get get it to him, I may be forced to have someone else look at it and I would rather give me a fighting chance of him finding the problem quicker than dicking around for days. Appreciate some help.
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Old Sep 16, 2010 | 03:15 PM
  #2  
Jadz928's Avatar
Jadz928
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From: Frankenmuth, Michigan
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Reads like MAF.... start w/a MAF swap.
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Old Sep 16, 2010 | 04:51 PM
  #3  
karl ruiter's Avatar
karl ruiter
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From: Honolulu and sometimes L.A.
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The trouble is your wheels. Send them to me and all will be fine.
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Old Sep 16, 2010 | 04:54 PM
  #4  
86'928S MeteorGrey's Avatar
86'928S MeteorGrey
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Joined: Jun 2008
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From: Surprise, Arizona
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Be careful. If your problem is a failing ignition module (running on 4 cyl). Flogging the car can cause a FIRE. Don't run it hard to try and fix it. In fact don't run it at all until you determine whats going on.
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Old Sep 16, 2010 | 10:55 PM
  #5  
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Mrmerlin
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From: Philly PA
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-pull the vacuum lines off of the dampers and the FPR smell them for gas
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