WHY IS MY CAR IDLEING(sp?) SO FREAKIN" HIGH?????

jayssilver4.6

New Member

Mar 7, 2004

54

0

0

Burleson, TX

Nov 10, 2006

#1

• Nov 10, 2006

• #1

Ok, it's been doing it off and on for a while now, but in the last 2 weeks it's been on more than off.

In neutral the car will idle at about 1500 rpms. After load it will drop down to about a 1000 then work its way back up

I disconnected the battery already to try to reset the computer but no luck. I don't hear any sucking from anywhere other than the IAC. Could it be that? I have the little mod that everyone on here was hootin' about where you put a thin piece of metal with smaller holes in between the IAC and the intake. Have I messed up my IAC or what... I'm really at a loss.

Thanks for the advice.

Jay

 

40th GT

New Member

Apr 7, 2004

916

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Lawrenceville, GA

Nov 10, 2006

#2

• Nov 10, 2006

• #2

You sure the thottle body blade isn't sticking?

 

jayssilver4.6

New Member

Mar 7, 2004

54

0

0

Burleson, TX

Nov 10, 2006

#3

• Nov 10, 2006

• #3

40th GT said:

You sure the thottle body blade isn't sticking?

Click to expand...

I haven't actually looked in the TB but all the throttlr linkage seats like it should.

 

Jsun3701

New Member

Dec 10, 2004

124

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0

Virginia

Nov 10, 2006

#4

• Nov 10, 2006

• #4

Did you switch the vaccumm hoses. If you put the one from the inlet pipe to the plenum after the TB the RPMs will go through the roof settle at about 1500 then if you give it gas it will seem to stick around 2000 then drop back down. I did that.

 

jayssilver4.6

New Member

Mar 7, 2004

54

0

0

Burleson, TX

Nov 11, 2006

#5

• Nov 11, 2006

• #5

Jsun3701 said:

Did you switch the vaccumm hoses. If you put the one from the inlet pipe to the plenum after the TB the RPMs will go through the roof settle at about 1500 then if you give it gas it will seem to stick around 2000 then drop back down. I did that.

Click to expand...

I don't think that I've touched them, but I will check them today...

anybody else have any ideas?

 

CobraRed_96_GT

Active Member

May 20, 2006

1,421

4

39

UCSD/La Jolla

Nov 11, 2006

#6

• Nov 11, 2006

• #6

i agree, sounds like a vacuum problem

 

Jsun3701

New Member

Dec 10, 2004

124

0

0

Virginia

Nov 11, 2006

#7

• Nov 11, 2006

• #7

Inquiring minds want to know if you checked the vaccum hoses?

 

mity2

I like Pro3 and all I got was this crappy CT.

Jul 24, 2003

2,872

3

48

StateCollege PA

Nov 11, 2006

#8

• Nov 11, 2006

• #8

Sound like vaccuum line issue.
Check ur pass. side PCV valve groumet. mine leaked, and caused high idle