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Chevy truck wont start/hard to start

89 chevy k2500 tbi 350 auto 4x4. Truck is hard to start or wont start at all. Has high rpm miss/cut-out. Occasionally hesitates off idle. Will start up if you give it a shot of starting fluid first. Runs good once started. Has a slight miss when running. Have replaced fuel pump, sending unit, fuel filter, fuel pressure regulator, ignition coil, spark plugs and air filter. Should i replace the ignition control module next?

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  • Chris S. Mar 04, 2013

    was told it could be water in the tank so i filled it up and dumped a can of seafoam in it. drove for about an hour and a half and no improvement when trying to start it.

  • Chris S. Mar 08, 2013

    changed the igniton control module in the distributor and it fires right up now. thought it was fuel related untill i noticed the high rpm cut-out so figured it had to have something to do with the distributor. problem fixed.

  • Chris S. Mar 09, 2013

    still have a pretty noticable miss in the engine during idle. If anyone has any ideas i would love any info that might help. I also replaced the cap and rotor when i did the ICM.Any idea's?

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Vacuum lines

Posted on May 02, 2013

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6ya6ya

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Posted on Jan 02, 2017

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B-Roosky

Brian Ridbomb

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SOURCE: i am not getting power to my fuel pump

on a lot of ford products there is a switch that goes from the fuel pump to the inside of one of the bedsides.
what this is, is a shock switch that turns the fuel pump off if it absorbs a hit.
its a really dumb safety feature but its effective.
there is a red button on it that u have to press to make it active again.
sometimes they just trip for no reason.

Posted on Jan 11, 2010

Bruce Hathcock

  • 3600 Answers

SOURCE: 90 chevy k1500 350 tbi fuel problem starts but wont stay running

try bypassing the oil pressure switch on the back of the block behind the distributor, if there oil pressure switch goes bad it will do this. had one that drove me nuts trying to fix it then figured out I had to buy a book and low and behold thee it was 3 wire oil pressure switch you can't see between the engine and fire wall just behind the distributor and costs 8 bucks to buy new.

Posted on Jan 16, 2010

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