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Idle Switch and Vacuum Limiter on OB

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Old 11-02-2007, 08:49 PM
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pscottjr
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Default Idle Switch and Vacuum Limiter on OB

I need to know where these are located on the engine. I have a drop in rpms when shifting gears (increase rpms then drops to 0 for 1-2 seconds and return to correct idle) and some of the threads suggest these parts as being the problem.

I have read so many posts and look through the WSM but am still not sure where these are. I think I know where the vacuum limiter is located.

Thanks, I am still learning and like most of us I try to cram everything into the weekend.....
Old 11-02-2007, 09:11 PM
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Lizard928
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the idle switch is on the throttle body,
Old 11-02-2007, 10:49 PM
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SMTCapeCod
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Don't know about the idle switch, as my car is CIS (same as 78/79 in most respects).
Vacuum limiter is a frisbee-shaped device, standing on edge, on the passenger side of the manifold.
A lot of folks seem to prefer it failed or disconnected due in part to the effect you mention (flaring return to idle). My manuals have a vacuum hose schematic that shows it very well.
Old 11-03-2007, 12:05 AM
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Thanks, I am a picture kind of guy. I will look up the schematic which I beleive that I have run across.

I would really like to fix this problem.



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