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Author
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Topic: 99 gt dies when coming to stop and pings under load
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Murder mach
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Member # 10590
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posted
 
 
So my question is,99 gt stock everything .All STOCK when I come to a stop my idle will drop to maybe 300 rpm then bounce back ufter a sec.does it hot or cold but when cold its even worse. Also,when under load,for example 5 gear or any gear and I give it a good bit of throttle it will have small missfires or hesitations NO check engine light and it just passed smog. Any ideas? IAC would maybe cause the idle drop at stop? But not the hesitation right? I also have been using premium gas
Posts: 860 | From: stockton area | Registered: Jan 2011
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70stang351w
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Member # 9948
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posted
How many miles? i would start with the IAC Try Cleaning it check connections; have you cleaned you MAF lately or K&N Filter?
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1996 GT VERT /32v MOD - SOLD
1970 Mustang Coupe M-Code 351w
Posts: 1419 | From: 925 | Registered: Apr 2010
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Murder mach
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Member # 10590
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I cleaned the maf and IAC and still no difference.unknown miles on the parts.car has 126k motor has 22k but I think some parts are off the old motor
[ 2015-02-11, 10:17 PM: Message edited by: gipsy danger ]
Posts: 860 | From: stockton area | Registered: Jan 2011
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NK2186
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Member # 12319
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posted
stick a vacuum gauge on it and see if you have steady vacuum and if it is a low reading.
What did you clean the MAF with? Try borrowing one from a friend and see if your car runs better.
Fresh gas?
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90 LX 5.0 - Stolen/stripped
89 LX 5.0 - Stolen and missing as of 7-24-13. LIC# 4HIP151 :(
99 Cobra
00 Exploder
Posts: 400 | From: Haystack | Registered: Aug 2012
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Murder mach
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Member # 10590
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Well I cleaned the maf wit maf cleaner..well yeah its got premium
Posts: 860 | From: stockton area | Registered: Jan 2011
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Duncan Motors
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Member # 7045
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posted
clogged cats or no fuel
presure
Posts: 6310 | From: Vallejo | Registered: Sep 2006
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70stang351w
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Member # 9948
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posted
Have you changed the Fuel Filter?
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1996 GT VERT /32v MOD - SOLD
1970 Mustang Coupe M-Code 351w
Posts: 1419 | From: 925 | Registered: Apr 2010
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