De_tour

Modified by De_tour at 4:42 AM 1/9/2007

92ehatch

clean your IACV

make sure you have no vacuum leaks

bleed the coolant system.

thats where i would start

De_tour

Modified by De_tour at 8:37 PM 4/17/2007

Sahwn

does it have a Fast Idle Thermo Valve? If so, clean it and/or tighten it down. Good luck!

nutball72

if your car is anything like mine, just give up cuz nothing works...

black_EM1

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nutball72 &raquo;</TD></TR><TR><TD CLASS="quote">if your car is anything like mine, just give up cuz nothing works...</TD></TR></TABLE>

That was helpful....

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by wspcivic &raquo;</TD></TR><TR><TD CLASS="quote">No bubbles, No vaccum leaks, and im not low on coolant.

clean out the IACV with brake cleaner, or is there anything else that could cause this?

Im not throwing any CEL's</TD></TR></TABLE>

Have you bled the coolant though? If there's an air bubble anywhere, it could cause this.

Vindicator9000

coolant bleed and IACV

Vindicator9000

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by wspcivic &raquo;</TD></TR><TR><TD CLASS="quote">No bubbles, No vaccum leaks, and im not low on coolant.

clean out the IACV with brake cleaner, or is there anything else that could cause this?

Im not throwing any CEL's</TD></TR></TABLE>

Sorry, didn't see your second post. Last time I had IACV problems, I cleaned it out with brake cleaner, but it didn't fix it. I threw a known good one in there, and the problem went away. Cleaning IACV works sometimes, but sometimes you just have to replace it.

black_EM1

Yep.

xNOBOOSTx

sounds like what happened to me. I had a vacuum leak and it did the same thing. check all the ports and hoses.

De_tour

Modified by De_tour at 8:37 PM 4/17/2007

xNOBOOSTx

sounds like something with the coolant. bleed the system and make sure there is no air bubbles.

EGwhat!!!

could be the pcv valve check that. let the car warm up to normal operating temp and find the vacuum hose for the pcv valve and pinch it close if the surge stops then you have found your problem

De_tour

Modified by De_tour at 8:37 PM 4/17/2007

vlc92189

try the fast idle air control valve.. happend to my friend .. replaced it and now the surging is gone