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Idle Problems

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Old 07-03-2003, 12:23 PM
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I have an automatic '93 and just last weekend after running it for awhile the idle went real low about 300rpm and then it stalled. So now when I drive it it idles fine in P but still when I put it in gear at a full stop it will stall on me. Help me out fellas.
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Old 07-03-2003, 02:55 PM
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Does not sound good. Do you have a boost gauge? If so, where is the vacum at

idle? Is the idle and vacum very lumpy? Check all the vacum hoses, first off the one to the map sensor.
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Old 07-04-2003, 01:54 PM
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Any luck yet?
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Old 07-05-2003, 04:58 PM
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No the vacuum and boost check good and it idles about 20 psi for vacuum.
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Old 07-05-2003, 10:14 PM
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Not to worry. Turn up the idle. Small lock nut and screw in front of the throttle body as you face the engine.



If it only happens with the AC on, buy a new clutch switch. $10 or $20 bucks, 5 minute install.
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Old 07-06-2003, 02:26 AM
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Originally Posted by tcb100' date='Jul 5 2003, 09:14 PM
Not to worry. Turn up the idle. Small lock nut and screw in front of the throttle body as you face the engine.



If it only happens with the AC on, buy a new clutch switch. $10 or $20 bucks, 5 minute install.
Hmm...there is not a clutch switch for the auto!



What rpm does it idle at? Try changing the plugs. Do a compression check, just

to make sure its nothing major. Other than that, I don't know. Maybe the tourque

converter could be bad?
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Old 07-06-2003, 03:38 AM
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Originally Posted by rotary speedster' date='Jul 5 2003, 11:26 PM
Try changing the plugs. Do a compression check, just

to make sure its nothing major. Maybe the tourque

converter could be bad?
I'd try what rotary speedster said and if that doesn't work have a quick check of the spark plug leads.
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Old 07-06-2003, 12:03 PM
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Hmm...there is not a clutch switch for the auto!
i think he meant the a/c clutch
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Old 07-06-2003, 01:20 PM
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Originally Posted by rxtacy' date='Jul 6 2003, 11:03 AM
i think he meant the a/c clutch
Doh! Prolly so.
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Old 07-08-2003, 09:26 AM
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No, I meant the clutch switch. I missed the point about it being an automatic.



I still think he ought ot try the simple thing first, adjust the idle screw.
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