Question about 1999 Chevrolet Tahoe

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1999 Chevy tahoe will not start

Tahoe will not start, changed the following: cam shaft positioner, O2 sensors, air flow sensor, battery, distributor, plugs are showing yellow spark, these plugs are spit fire plugs. At wits end.

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  • traveling64 Nov 08, 2008

    Took the ignition module to auto zone and they said it was good. Could their be another solution to not crankng with a yellow spark.

  • corvette-man Dec 30, 2008

    Mine was doing the same had a short in the visor lights and drain the battery. put a hot battery in it and it should fire up . this trucks need hot battery to run

  • Anonymous Mar 28, 2014

    I have a chevy Tahoe wont crank new battery and new crank sensor

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Check the crank sensor. no signal from the crank sensor causes a no spark condition. best way to check is to put a scanner on and check for rpms.
the crank sensor is differnt from the cam sensor

Posted on Apr 26, 2009

  • mark gugle Feb 26, 2013

    it has spark, seems to labor with short pause when cranking to start

  • Jimmie Boatwright
    Jimmie Boatwright Jan 03, 2014

    what is crank sensor

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A yellow spark is a weak spark and useless unless you use engine start which is extremely easy to ignite compared to petrol.Your problem is more likely to be an ignition module inside the distributor.

Posted on Nov 02, 2008

  • tony yeatman
    tony yeatman Nov 08, 2008

    The gap on the plugs could be too wide or the coils are not generating enough power to fire the plugs.Are the H/T leads in good condition?Are you getting a good 12v source of power to the coil/s while cranking.

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Truck starts up but cut right back off. changed battery and alternator, what else can i do?

Posted on Nov 19, 2013

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