Have you burped the engine using the bleeder screws? You probably at least need to do a flush then burp it andthen burp it some more.

 

That's garden hose, larry. Get a garden hose, blowin' through the radiator fins. Feel free to go from the outside in, toward the engine if you'd like, just to make sure that jam is in there good and tight.

And feel free to askabout anything else that ain't clear.

 

Watch the Opti if your using the garden hose.

 

It also wants to run bad and die when it gets hot....... It is going back to the dealer tomorrow... any sugestions on the running bad also????

 

Loping idle? (up and down rev's) Or just rough?

 

well the rad was full of dirt now it runs cooler..... also it seems a little lopey... but when throttle is applied it runs well

 

vacuum leak.

 

is it a vacuum leak or maybe it might need new wires and plugs???? where should I start looking for the leak.....

 

If it's loping up and down - 200 rpm's about, it's a vacuum leak. Fire problem is possible, butextremely unlikely.

Leaks develop in TPI's everywhere from the IAC at the throttle body, to the intake manifold/cylinder head junction. You might be able to find the leak with a can of startin fluid, sprayin' around where parts meet up, like the throttle body/ intake plenum, intake manifold/intake runners. The recommended way is with a propane can, UNlit, as described in the article:
https://www.corvetteforums.com/m_37283/tm.htm
page 22 (4 of 7)post.

You gotta raise the RPM's before the test, to get a steady RPM. THEN, you will find the leak. Read the whole article too.


ibelew is re-doin' his intake now... I'd like to know what he's got workin' now...
https://www.corvetteforums.com/m_37817/mpage_2/tm.htm (page 2)