why is my truck having problem starting at times?

2007 CHEVROLET COLORADO
60,000 MILES
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FLYFISHIN
  • MEMBER
  • 1 POST
what happens is . we go to start it it turns over but wont start . we just wait 10 min and try it again and it starts right up, the truck runs great except for that one problem and we cant seem to find the problem . we have had it in seeveral times to try and get it fixed but it still keeps doing it and now it is doing it more often.we are at a loss. thank you
Dec 2, 2011 at 7:39 PM
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RASMATAZ
  • CAR REPAIR CONTRIBUTOR
  • 75,992 POSTS
https://www.2carpros.com/articles/car-cranks-but-wont-start

Next time it refuses to start don't wait for it to make up its mind-do below immediately to determine if its fuel or spark problem

Get a helper disconnect a sparkplug wire or 2 and ground it to the engine atleast 3/16 away from ground-have helper crank engine over-do you have a snapping blue spark? If so-you have a fuel related problem, Do you hear the fuel pump come On when you turn key on? If not check fuel pump fuse and fuel pump relay if okay-check the fuel pressure to rule out the fuel filter/fuel pump/pressure regulator and listen to the injector/s are they pulsing or hook up a noid light. No snapping blue spark continue to troubleshoot the ignition system-power input to the coil/coil packs,coil's resistances,cap and rotor,distributor pick-up coil, ignition control module, cam and crank sensors and computer Note: If it doesn't apply disregard it and keep testing
Dec 2, 2011 at 7:44 PM
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