Problems after Intake install.

zZsKyZz · Sep 13, 2007

I just finished installing a Edelbrock RPM intake and now that I've started it I've noticed a Check Engine Light [CEL] and a rough idle then it stalls out. I also notice it having a loud whine or whistle after I rev the engine.

Any ideas? I did forget where I left the timing, but I guess that'd cause pinging if it was wrong..Not this rough crappy idle.

I already checked for vacuum leaks and solved all them... So I think.

Suggestions/ideas?

sleeperstang199 · Sep 13, 2007

sounds like you have a vacuum leak. most people have problems with the lower gaskets. hook a vacuum gauge up to the intake and check your vacuum. i think it should be between 18 and 26 In/Hg.

red95gtconvert · Sep 13, 2007

As mentioned above you have a vacuum leak, and from the way you describe it I would bet it is a big one. Do you have the unused vacuum ports plugged off on the upper intake?

zZsKyZz · Sep 13, 2007

red95gtconvert said:
As mentioned above you have a vacuum leak, and from the way you describe it I would bet it is a big one. Do you have the unused vacuum ports plugged off on the upper intake?

yep....i had to remove the whole intake cuz after i started it i noticed that it was there and I dropped a plug down the ****er... So I had to remove the whole intake to get that plug out.

...Trust me, that thing is plugged now.

mojopony · Sep 13, 2007

Yeah, I'd say put a vacuum gauge on there and check how many inches its pullin' and if it seems kinda low spray some carb cleaner around and see if the idle picks up.

zZsKyZz · Sep 13, 2007

I think I'm just gunna end up selling the car. It's been nothing but problems and a hassle from day one.

Adam95GT · Sep 14, 2007

chil out bro just another bump in the road... check your iac thingy???

zZsKyZz · Sep 14, 2007

Adam95GT said:
chil out bro just another bump in the road... check your iac thingy???

I've checked everything. It's driving me nuts.. If I have to take it apart again, it will be the third time I'm taking the intake on and off.

Fopar · Sep 14, 2007

where u live? Maybe someone can come over and help you out

rdubb17 · Sep 14, 2007

100 percent positive a vac leak. My friend installed my upper intake on my 2.3 and didn't tighten it down enough and it sounded like a supercharger (when it was turbo'd) Don't give up, figure it out man - its not that tough.

-Ryan

DLFD911 · Sep 14, 2007

+1 on the spray carb cleaner trick. I used to find every leak that way.

Dino Dino Bambino · Sep 14, 2007

I prefer water from a spray bottle to locate vacuum leaks on a warm engine. Carb cleaner's flammable and I wouldn't like to risk having a fire under the hood.
Like the others, I can guarantee you have a vacuum leak somewhere and it's most likely to be from any of the intake gaskets (lower intake to head, upper to lower intake, or TB to upper intake).
The rough idle is caused by air getting into the engine through an intake leak. Since this extra air isn't sensed by the MAF sensor, the computer doesn't add extra fuel so the engine runs lean and stalls.

mojopony · Sep 14, 2007

Some folks spray brake parts cleaner, but I don't know if its less volatile than the carb cleaner.

zZsKyZz · Sep 14, 2007

mojopony said:
Some folks spray brake parts cleaner, but I don't know if its less volatile than the carb cleaner.

Both are extremely flamable... I get bored at work sometimes and see which makes the best blow torch and chase my co-workers around with it...

Problems after Intake install.

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