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    KyleWrightsel's Avatar
    KyleWrightsel Posts: 3, Reputation: 1
    New Member
    		  
    #1

    Dec 14, 2010, 05:45 PM
    94 chev 1500 4.3 v6 won't start
    I have 94 chev truck 1500 with the 4.3 v6 4 wheel. THIS truck won't start , and I drive it home. Its got spark, I check the timing, its good, its got new spark plug wires and spark plugs, new destubutor and cap, change the map sentor, and its got a new gas pump. Still not start up.
    TxGreaseMonkey's Avatar
    TxGreaseMonkey Posts: 16,761, Reputation: 5597
    Uber Member
    		  
    #2

    Dec 14, 2010, 07:39 PM

    Make sure you replace the Ignition Control Module (ICM), if it has not been replaced in the last 120,000 miles. This link may help:

    https://www.askmehelpdesk.com/cars-t...ml#post2123675
    KyleWrightsel's Avatar
    KyleWrightsel Posts: 3, Reputation: 1
    New Member
    		  
    #3

    Dec 14, 2010, 08:06 PM
    Comment on TxGreaseMonkey's post
    I've done replace the ICM too.
    CaptainRich's Avatar
    CaptainRich Posts: 4,492, Reputation: 537
    Cars & Trucks Expert
    		  
    #4

    Dec 15, 2010, 07:40 AM

    Have you checked for injector pulse?
    Does the check engine light come on? Do you have a way to check for diagnostic trouble codes?
    Why did you replace the sensor and pump?
    KyleWrightsel's Avatar
    KyleWrightsel Posts: 3, Reputation: 1
    New Member
    		  
    #5

    Dec 15, 2010, 12:07 PM
    Comment on CaptainRich's post
    I even check compresion on every spark plug and everything good, I check the sensor and pump to try everything and no check engine light come on. I thing the computer, but I don't know
    CaptainRich's Avatar
    CaptainRich Posts: 4,492, Reputation: 537
    Cars & Trucks Expert
    		  
    #6

    Dec 16, 2010, 04:55 AM

    Does the check engine light come on with the key on engine off?
    Those ECMs are original OBDI and are plentiful in the used and aftermarket. It's a simple swap if you know what you're doing and since you've tried nearly everything else, why not try an ECM.
    Still, it would be nice to have a scan tool to check some data.
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