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-   -   Engine won’t start after rebuild (https://www.hummerforums.com/forum/hummer-h2-8/engine-won%92t-start-after-rebuild-46060/)

Mood227 07-01-2022 06:03 PM

Engine won’t start after rebuild
 
Hey y’all! I have a 2007 H2 that had a main oil seal failure, so my dad and I decided to have the entire engine rebuilt and had the cylinders rebored. After replacing other older looking parts, we recently got it into a starting state, but it won’t start. We have confirmed the starter works, but the belt pulley moves the belt about 2 inches and then stops and then starts after about half a second. Is there an issue with how the transmission is mounted? Thank you,
-Joe
attached is the video of car ignition

hummerz 07-01-2022 07:15 PM

https://cimg3.ibsrv.net/gimg/www.hum...a5cf5a6f72.jpg

bronxteck 07-01-2022 07:53 PM

hopefully they did not leave a rag stuffed in a cylinder. pull the plugs and check.

chaos06 09-19-2022 01:26 PM

No rags in cylinder
 
The heads were done separately and we put them on the block.

It seems electrical, like there is a sensor we may have missed. Cam position sensor, crank position sensor are all new.

could this be the gas pedal sensor that controls the throttle body?


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