RCCrawler Forums - Jeep Problem...

RCCrawler Forums (http://www.rccrawler.com/forum/)

- 1:1 Full Size Vehicles (http://www.rccrawler.com/forum/1-1-full-size-vehicles/)

- - Jeep Problem... (http://www.rccrawler.com/forum/1-1-full-size-vehicles/586053-jeep-problem.html)

ThatJeeper2017

06-17-2017 07:34 PM

Jeep Problem...

Hi all Jeep folks, just finished a semi-engine overhaul and when I tried to start it, the engine immediately went to 4000 rpm. Any guesses as to why this is happening? Thanks.

ThatJeeper2017

06-17-2017 07:34 PM

Re: Jeep Problem...

This was also a 2005 jeep 4.0L I6.

Correll

06-23-2017 03:19 PM

Re: Jeep Problem...

Either your throttle cable is stuck. Or, you did not get the manifold lined up correctly and have a massive un-metered vacuum leak. It is possible to not get the manifold all the way down on those engines because they share bolts with the exhaust manifold. I believe I had a friend do what you may have done and he had the intake manifold slightly off and it was not sealed to the cylinder head. And his revved to the moon on start up.

Shinchu

06-30-2017 09:26 AM

Re: Jeep Problem...

yup I was thinking vacuum leak.

ThatJeeper2017

06-30-2017 05:06 PM

Re: Jeep Problem...

Thanks guys, turns out that the manifold wasn't sitting correctly on one of the allignment stubs on the block and that cause the vacuum leak.

All times are GMT -6. The time now is 06:38 AM.