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93 GT idle issues...

  • Thread starter Thread starter 93BlackBeast
  • Start date Start date May 10, 2005
9

93BlackBeast

Member
Dec 9, 2002
81
0
6
Raymore, Mo.
May 10, 2005
#1
  • May 10, 2005
  • #1
When I am driving and come to a stop, let's say at a red light, the rpm's jump and idle like at 1500-2000 rpm's. It does not happen all the time, just occasionally. Anyone know what the problem could be?
 

I_AM_CANADIAN

Member
Mar 30, 2005
189
0
16
B.C.
May 10, 2005
#2
  • May 10, 2005
  • #2
does it only happen when the engine is cold?
 

Henceforward

The Avatar Master
Founding Member
Jul 17, 2001
485
0
0
May 10, 2005
#3
  • May 10, 2005
  • #3
Pull of the IAC and clean it out real good with carb cleaner.

Set the TPS voltage to .90-.99

If your AC is off, turn it on, and that will drop the idle by 100-200 Rpms...
 

HISSIN50

"How long does it take to get help in here?
15 Year Member
Nov 29, 1999
31,179
33
129
May 11, 2005
#4
  • May 11, 2005
  • #4
yeah, since it is intermittant, the IAC probably has a hiccup. see if you can notice any other rhyme or reason that it will hang when it does.

good luck.
 
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