I just changed my intake to an Edelbrock Performer and now that everything is re-attached, the car starts, but the idle is extremely high...about 2k higher than where it should be. I'm new at working on my engine...what could be doing this and how can I fix it.


Thanks


Matt Kaliszewski
82 Camaro Z28
LG4 Automatic
4-BBL

 

2000 rpm's to high? Its idling around 2500-3000 rpms?!?!?

IF you mean that your idling aroudn 1000-1500 once warm, I'd guess CTS, but I dunno if its above 2000....

 

Make sure you have all the vacuum lines hooked up, it could be a vacuum leak.

 

Yes. I turn the car on and it jumps right up to 2500 and stays there. I dont know if maybe the choke is stuck, but I'm not sure how to check or fix it.

 

I'm guesssin its carb'd? Have you tried to adjust the idle screw?

 

Check for a working choke, also check that the idle kicker is not on (locatd by the throtle cable, in front). Both of these combined can give u a high idle. The carb will not kick down once its up to temp. if the idle kicker is activated....

 

Thanks for the suggestions.

When I installed it, I put the new gasket on the intake and put the carb on, but realized that the bolts were too long. I then decided to put the old gasket on () so I would be able to tighten the bolts.

This is when it wouldnt drop below 2500.

The next morning I took off the carb and was comparing the 2 gaskets and both manifolds. The old manifold has individual chambers and the gasket was one big hole. The new intake had 2 separate, undivided chambers and the new gasket had individual holes for the primaries ans secondaries.

I put the new gasket with the individual holes for the primaries and secondaries on and put a few washers under the head of the bolt and everything was once again fine.