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Idle Question?

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Old Feb 23, 2011 | 02:00 PM
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Default Idle Question?

When I drive my car, it runs great, but whenever I stop for a red light or stop signs, it idles at 1000 rpms for a couple seconds, then it goes to normal. Is this normal, or what could it be?
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Old Feb 23, 2011 | 02:29 PM
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t t t
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Old Feb 23, 2011 | 03:17 PM
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Maybe IAC? Kinda what it sounds like
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Old Feb 23, 2011 | 03:42 PM
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where is that located on engine and how can i check it?
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Old Feb 23, 2011 | 04:09 PM
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Here you go.

https://ls1tech.com/forums/generatio...high-idle.html
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Old Feb 25, 2011 | 05:19 PM
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thanks for the help
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Old Feb 25, 2011 | 05:43 PM
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HI.
THE ABOVE QUOTES ARE POSSIBLE AND ACCURATE!!!!!!
HOWEVER, OTHER CONSIDERATION COMES INTO PLAY:
BUMP STOP/ TPS
VACUUM LEAK
ENLARGED HOLE THROTTLE BLADE
THROTTLE CABLE ADJUSTMENT
IAC /MEASURE RESISTANCE TERMINALS A/B THEN C/D READINGS 40-80 OHMS.
TERMINALS READ:
D
C
B
A
GOOD LUCK AND GOD BLESS YOU AND YOUR FAMILY...........
CAPTAIN JIM
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Old Feb 25, 2011 | 05:57 PM
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Originally Posted by jim ravencraft
HI.
THE ABOVE QUOTES ARE POSSIBLE AND ACCURATE!!!!!!
HOWEVER, OTHER CONSIDERATION COMES INTO PLAY:
BUMP STOP/ TPS
VACUUM LEAK
ENLARGED HOLE THROTTLE BLADE
THROTTLE CABLE ADJUSTMENT
IAC /MEASURE RESISTANCE TERMINALS A/B THEN C/D READINGS 40-80 OHMS.
TERMINALS READ:
D
C
B
A
GOOD LUCK AND GOD BLESS YOU AND YOUR FAMILY...........
CAPTAIN JIM

Thanks, looks like I need to get to a shop and get it checked out
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Old Feb 25, 2011 | 06:32 PM
  #9  
jim ravencraft's Avatar
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Hi,
check throttle cable first.........you can do it!!!!!!!!check plastic square housing on cable near oil dip stick.....volt meter set to ohms and get readings....
Throttle blade hole 5/16-5/32 any larger more air than you need for stock cam.
Check cable at intake/tb manually move it. I used an additional small spring to pull my cable and increase throttle pressure..tps/iac two screw in each one.
Give them a good cleaning and reinstall. Perhaps cures problems for you.
Vacuum test is easy and tells you alot about engine....lastly a tuner can adjust for you if all is ok........let me know jim
PS: LOANER TOOLS AVAILABLE OREILLY/AUTOZONE PLUS ONLINE REPAIR MANUAL.
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