So today me and my dad replaced my cracked intake manifold. But now that we have it all together it'll start but wont hold an idle. It'll just die unless i keep my foot on the gas. Is this because we hooked something up wrong? Or could it just be because the intake manifold gaskets aren't broken in or it's just because it's wet because we watered it down too much trying to clean the engine? Or could it be because theres air bubbles in the fuel line since we took all that stuff off?

If anybody knows thanks in advance.

 

But after about 10 mins of revving it'll finally hold an idle.

 

does it do this every single time?

 

i tried twice and it did it both times

 

Sell your mustang and buy a Honda.

Win for everyone.

 

wait did you water down the engine while the manifold was off and uncovered?! please tell me yes!

 

No, it didn't. And it starts up fine now, it was just misfiring due to my dad not putting the spark plug wires in good.

 

*facepalm*

I'm gonna keep my mouth shut on this one.

 

I think it was pissed at you for even considering putting lambo doors on it.

 

i think it was more pissed that someone would try to push it to 150 mph down an old unused highway