Author
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Topic: Stumbling at low idle
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Aztec 5.0
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Member # 13859
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posted
90 GT AOD stumbles in 3rd and 4th at around 1k RPM's under light throttle. Cleaned the throttle body but didn't help. Doesn't do it in any other gear or under moderate or heavy throttle. Idle has been slightly rough but the idle is steady at about 750 RPM's and doesn't bounce around. Any ideas?
Posts: 164 | Registered: Nov 2014
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90GT510
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Member # 9199
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posted
Man I'm having the same exact problem in my 2007 gt manual but only under low rpm acceleration in 2nd and 3rd.
At this point I'm thinking it could be clogged cats. Does ur car still have the cats?
-------------------- Stay Sydewayz
Posts: 1725 | From: East Bay/Dallas, TX | Registered: May 2009
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rollininmy50
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Member # 9067
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posted
How many miles on that auto transmission?
Posts: 439 | From: sactown | Registered: Apr 2009
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rollininmy50
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Member # 9067
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posted
Have you ever adjusted the idle screw and not reset the TPS?
Posts: 439 | From: sactown | Registered: Apr 2009
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Aztec 5.0
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Member # 13859
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posted
94K on the car/trans. Shifts great. Never adjusted the idle because it's idling where it should be. Going to replace the MAF to see if that helps
Posts: 164 | Registered: Nov 2014
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90GT510
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Member # 9199
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posted
quote: Originally posted by Aztec 5.0: 94K on the car/trans. Shifts great. Never adjusted the idle because it's idling where it should be. Going to replace the MAF to see if that helps
Try cleaning it before replacing.
-------------------- Stay Sydewayz
Posts: 1725 | From: East Bay/Dallas, TX | Registered: May 2009
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Blow_U_In_Reverse
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Member # 12298
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posted
Try advancing the timing a little bit..
-------------------- "Real Men Get BLOWN" -1993 Cobra "COBRUUH" -1984 T-Top Notchback #KurganTuned
Posts: 2688 | From: FiJi-925-650 | Registered: Aug 2012
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Aztec 5.0
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Member # 13859
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posted
You guys have any success cleaning it with the MAF cleaner?
Posts: 164 | Registered: Nov 2014
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Aztec 5.0
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Member # 13859
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posted
I cleaned the MAF but no luck. Will try TPS and IAC next
Posts: 164 | Registered: Nov 2014
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