Car idles at over 4,000 RPM's

D2004.FORENZA.

MEMBER
2004 SUZUKI FORENZA
2.0L
4 CYL
2WD
AUTOMATIC
54,854 MILES

The problem that I have with the car. At start up it rev up to 4000+ rpm's. I change TPS and the IACV and still does the same thing. Prior to TPS and IACV, head gaskets were done. Any good advice on here would sure be appreciated.

Wednesday, August 28th, 2019 AT 2:47 PM

6 Replies

JACOBANDNICKOLAS

MECHANIC
109,867 POSTS

Welcome to 2CarPros.

Does the idle return to normal? If it doesn't, have you checked the throttle cable and linkage for something causing it to stick?

Take a look through this link to see if anything is helpful.

https://www.2carpros.com/articles/engine-idles-too-high

Let me know.

Joe

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Wednesday, August 28th, 2019 AT 6:29 PM

D2004.FORENZA.

MEMBER
4 POSTS

The idle does not return back to normal. Checked the linkage and throttle cable and they both look good. I will look through the link and see if anything helps.

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Wednesday, August 28th, 2019 AT 10:42 PM

D2004.FORENZA.

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4 POSTS

I appreciate the help Joe.

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Wednesday, August 28th, 2019 AT 10:42 PM

JACOBANDNICKOLAS

MECHANIC
109,867 POSTS

Welcome back:

Do me a favor. Disconnect the throttle body cable from the throttle body and see if that changes things.

Let me know, and you are very welcome.

Joe

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Thursday, August 29th, 2019 AT 6:13 PM

D2004.FORENZA.

MEMBER
4 POSTS

Hey Joe so here is what is going on: The piston rod snap and broke from the last start. I pick up another motor from a junk yard. No timing belt on. So I tried aligning the crank and both cams. So I did and it starts and then shuts off. Any idea? Sound like it's choking.