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#1
12-02-2005, 12:02 PM
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4.3 cutting out
I have an 88 4x4 blazer with a 4.3. It will start and drives fine until it's warmed up. Once it's warm it starts to cut out like the tranny is slipping or it's running out of gas. But then it's fine for another mile or so. The truck has 235000 on it and I have changed the fuel pump last fall. I put new plugs in it, however I'm thinking it could use a new set of wires cap and rotor... What more could it be? I need help from a real Motorhead!!!
Last edited by RickWhit; 12-02-2005 at 05:23 PM. 
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#3
12-02-2005, 06:22 PM
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Re: 4.3 cutting out
Hang in there. Help is near. Give them time.
Good help is like good wine it takes time. MT 
__________________
Remember proper testing gives us the answer to many problems. MT
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#4
12-03-2005, 05:17 AM
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Re: 4.3 cutting out
You have to start with the basics..spark, fuel
__________________
Why do you never have enough time or money to do the job right the first time, but enough time and money to do it again? Got all the certifications 25 years ASE Certified Master Technician GM WCT Yea..I work at a DEALERSHIP....got a problem with that? Want to diagnose cars like the Pros? FOR SALE: OTC Perception 2 channel Labscope (badged as a Matco Reality) This is my personal labscope that I use to diagnose waveforms, like new, comes with leads and training video PM Me for details
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#5
12-30-2005, 07:20 PM
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Re: 4.3 cutting out
fails when its warm........., check the ignition module, pick up coil, and electronic spark module
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