Question about 1988 Chevrolet C/K 3500

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1988 Chevrolet K3500, Have replaced distributor, fuel pump, plugs, wires, cap, rotor, and ignition control module and the truck will turn over and not fire.

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  • bigmf022 Feb 21, 2009

    Injectors work so I can see, the coil is new too, haven't tested the the fuel pressure regulator to see what the pressure is but there is fuel present.  There is compression so the timing chain is in place and it was running in idle for 10-15 min, then was shut off, then failed to start after.  All new ignition components have been installed but seems there is still no spark.  Is there a crank sensor on this motor? Not sure where else to start testing

  • stak320 Mar 22, 2009

    Same problem here. Cranks w/ no start. There are 2 plugs w/ 2 wires each on the coil. One plug is power coming in and the other goes to the tach. The other plug goes to the bottom of distributor. I replaced the coil and still no spark. The power wire coming in has 12.3 volts. This is the 2nd coil I have replaced. What is the output on the coil? I thought it was supposed to be about 5000 volts. I'm second guessing myself on basic mechanics now.

  • Anonymous Mar 23, 2014

    Truck has set up a couple years.
    Replaced battery, starter, and distributor. Motor growling on drivers side and real slow turning over.

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Give it a * small * sniff of tractor start fuel in the intake to see if it will run / if it does and stops it's not getting fuel, if it doesnt start then yes spark problems / or timing is out .yes even a broken sensor is possible all it takes is crack to mess things up. pray the computer didnt give up .another possibility.

Posted on Nov 19, 2009

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Pick up a spark tester (it'll cost under 15$) . After installing the tester on one of the 2 rear right or left bank spark plugs, have someone turn the engine over and check for spark. If you have no spark, you could have either a broken timing chain or a broken cam-shaft. The only other minor item you didn't mention with regard to the ignition system was to make sure you have a good hot power source to your distributor. If these things don't work, it might be time to check that the carburetor or throttle body fuel injection (as applicable) is providing fuel.

Posted on Feb 21, 2009

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