High Idle on startup

D

Drews93fox

Member

Feb 22, 2010

140

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17

Danville, Iowa

Mar 17, 2011

#1

• Mar 17, 2011

• #1

So I have a 93 mustang (stock motor)and I have problem when I start my car it like to idle up to 2500 to 3000 rpm. I have read through the first 4 or 5 pages in the surging idle checklist. From that i have cleaned the salt and pepper shakers and i cleaned out the IAC and that helped a little bit.

I don't think that I have the same problem as a surging idle because mine is just on start up. My car will idle down to around 700

Any help would be appreciated

Thanks Drew

 

jrichker

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Mar 17, 2011

#2

• Mar 17, 2011

• #2

Have you done the set base idle procedure in the Surging Idle Checklist?

 

Mustang5L5

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Mod Dude

Feb 18, 2001

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Mar 18, 2011

#3

• Mar 18, 2011

• #3

Set base idle, run for few days then check codes

 

D

Drews93fox

Member

Feb 22, 2010

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Danville, Iowa

Mar 18, 2011

#4

• Mar 18, 2011

• #4

ok I will set the base idle and print off the surging idle checklist and go through it this weekend

Thanks for the help guys

 

2

2001stang4.6

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Apr 5, 2008

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Mar 18, 2011

#5

• Mar 18, 2011

• #5

i was told once that if your timing is set to high it can cause that. so you might want to check the timing ?