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Go Back   Hummer Forums by Elcova > Hummer H2 Discussion Forums > Technical Discussion and Customizing your H2

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  #1  
Old 07-20-2013, 06:11 AM
MrIgor MrIgor is offline
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Default tricky no start problem..

Today I finished installing new transmission, the engine cranks BUT ONLY starts for a sec if i spray starter fluid into throttle body (quickstart) and dies right away. Looks like I have no fuel BUT The most confusing thing is in the fuel rails there is fuel if i press the release nipple.

It started before like clock work, no problems ever before I replaced transmission. it cant be a wiring thing, because I have spark, and NO check engine codes.

How can it be that I have fuel in the rails, and spark and wont start???
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  #2  
Old 07-20-2013, 12:41 PM
jsbihn jsbihn is offline
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Default Re: tricky no start problem..

Is the trans in the park gear?
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  #3  
Old 07-20-2013, 04:05 PM
MrIgor MrIgor is offline
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Default Re: tricky no start problem..

Quote:
Originally Posted by jsbihn
Is the trans in the park gear?


yes otherwise it wouldnt let me crank
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  #4  
Old 07-20-2013, 04:36 PM
MrIgor MrIgor is offline
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Default Re: tricky no start problem..

I noticed my PCM fuse was blown, installed new one.. but no changes.
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  #5  
Old 07-20-2013, 08:38 PM
MrIgor MrIgor is offline
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Default Re: tricky no start problem..

update: i just checked i have constant 57 psi. and i have spark. But wont start??? if i spray starter fluid into TB it runs for a second or two then dies.

What am i missing?
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  #6  
Old 07-20-2013, 11:46 PM
MrIgor MrIgor is offline
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Default Re: tricky no start problem..

it seems the PCM is not sending signal to the injectors, but the injectors do have power.
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  #7  
Old 07-31-2013, 06:52 PM
Planohummer Planohummer is offline
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Default Re: tricky no start problem..

theft system disables injector pulse. are you using a new key?
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