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  #1  
Old 02-08-2005, 02:25 PM
Dr.Outback Dr.Outback is offline
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Location: Lancaster, PA
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A question on cold start idle speed...

I've done some extensive research on the SVX's idle system because of an apparent problem I'm having with the cold start idle. When I get in and start the car, the engine quickly starts and revs to about 1500rpm. That's normal. But the engines revs that high for about 3mins after driving down the street. Do any of your SVX's do this? I can't find anything in the service manual about normal cold start idling. I was thinking that maybe the Auxiliary Air control valve's bi-metal spring is no longer heating properly. What are your ideas? Thank's.

Last edited by Dr.Outback; 02-09-2005 at 06:50 AM.
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  #2  
Old 02-08-2005, 04:18 PM
oab_au oab_au is offline
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Re: A question on cold start idle speed...

Quote:
Originally posted by Dr.Outback
I've done some extensive research on the SVX's idle system because of an apparent problem I'm having with the cold start idle. When I get in and start the car, the engine quickly starts and revs to about 1500rpm. That's normal. But the engines revs that high for about 3mins after driving down the street. Do any of your SVX's do this? I can't find anything in the service manual about normal cold start idling. I was thinking that maybe the Auxillary Air control valve's bi-metal spring is no longer heating properly. What are your ideas? Thank's.
The rotary plate in the valve may be gooded up. Needs the engine heat to allow it to close. You could spray some carb cleaner into the hose, while it is cold and sucking air.

Harvey.
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  #3  
Old 02-09-2005, 06:45 AM
Dr.Outback Dr.Outback is offline
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I'll try that. I wasn't sure if the valve was prone to getting gumed up.
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  #4  
Old 02-09-2005, 12:51 PM
RobSVX
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Unhappy No bi-metal spring I can find...

There is no bi-metal spring that I can find... Just a shaft out of the IAV that goes into the solenoid ? Somehow the magnetic field must turn that shaft...
Where is this spring folks talk about. I've got my IAV and solenoid apart in front of me. The solenoid's magenic field turn the shaft. There is no moving part inside the solenoid.
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Old 02-09-2005, 03:53 PM
oab_au oab_au is offline
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Re: No bi-metal spring I can find...

Quote:
Originally posted by RobSVX
There is no bi-metal spring that I can find... Just a shaft out of the IAV that goes into the solenoid ? Somehow the magnetic field must turn that shaft...
Where is this spring folks talk about. I've got my IAV and solenoid apart in front of me. The solenoid's magenic field turn the shaft. There is no moving part inside the solenoid.
Answered in your own post.

Harvey.
__________________
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Tell it like it is!

95 Lsi. Bordeaux Pearl, Aust. RHD.149,000Kls Subaru BBS wheels.
97 Liberty GX Auto sedan. 320,000Kls.
04 Liberty 30R Auto Premium. 92.000kls.
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