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99 yukon wont start


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gabriel
New User

Jan 6, 2013, 12:06 PM

Post #1 of 5 (4668 views)
99 yukon wont start Sign In

Hi, i have a 99 GMC Yukon with a 350 vortec. It will not crank. it will turn over and try to but wont. the control module tested good, the coil is firing, its getting fuel, and there is a spark at the end of the plug wire. I also swapped the crank position sensor and that didnt fix anything either. Im to the end of the road with my trouble shooting ideas .....please help.


Sidom
Veteran / Moderator
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Jan 6, 2013, 12:38 PM

Post #2 of 5 (4654 views)
Re: 99 yukon wont start Sign In

Shoot some starting fluid down the throttle body and see if that will get the engine to run for a few seconds......Also you really want to take a fuel pressure reading on this one


(This post was edited by Sidom on Jan 6, 2013, 12:38 PM)


Discretesignals
Ultimate Carjunky / Moderator
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Jan 6, 2013, 8:45 PM

Post #3 of 5 (4621 views)
Re: 99 yukon wont start Sign In


Quote
It will not crank. it will turn over and try to but wont.


That is kind of confusing. If it doesn't want to crank, you need to check out the starting system. Have the battery tested and make sure your connections are clean and tight first.





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.


Sidom
Veteran / Moderator
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Jan 6, 2013, 8:58 PM

Post #4 of 5 (4621 views)
Re: 99 yukon wont start Sign In

Crank = start on this one Tongue


Discretesignals
Ultimate Carjunky / Moderator
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Jan 6, 2013, 9:08 PM

Post #5 of 5 (4614 views)
Re: 99 yukon wont start Sign In

Security light on or flashing while cranking the engine?





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.






 
 
 






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