• Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • Fox 5.0 Mustang Tech

Does this happen to anyone else.... idle

  • Thread starter Thread starter vpap1
  • Start date Start date Aug 12, 2010
V

vpap1

Member
Sep 21, 2009
109
2
19
Aug 12, 2010
#1
  • Aug 12, 2010
  • #1
Hi guys,
I have a 90 GT that i just installed the track heat top end kit and supporting mods. Not yet tuned. After I did this i can get her to idle at 1050-1100 from a cold start after searching for few seconds, but once I start driving around and sit at a light she always jumps to 1500. Happening to anyone else or do I really need to tune my combo?

Thanks
V
 

Kdubslugga

Active Member
Jun 7, 2003
1,515
3
38
Akron, OH
Aug 12, 2010
#2
  • Aug 12, 2010
  • #2
A tune should help. But ive come to except the fact modded fox bodies just dont idle well. I had my car tuned at Anderson and for 4 months it idled like a brand new car. But its actin up again!!!
 

jrichker

StangNet's favorite TOOL
In Remembrance. Thank you for your contributions
Mar 10, 2000
27,512
2,813
234
Dublin GA
Aug 13, 2010
#3
  • Aug 13, 2010
  • #3
See the "Surging Idle Checklist for help with all your idle/stall problems. Everything you need to find and fix idle problems is in there.

The first two posts contain all the updates to the fixes. At last count there were 24 possible causes and fixes for surging idle/stall problems. I continue to update it as more people post fixes or ask questions.
 
You must log in or register to reply here.

Similar threads

P
2000 GT Random Power Loss
  • Pinellas50
  • Mar 9, 2026
  • SN95 4.6L Mustang Tech
Replies
4
Views
438
SN95 4.6L Mustang Tech Mar 23, 2026
Pinellas50
P
Resolved 93 Mustang 5.0 - Cranks but does not start
  • dan50
  • Jul 18, 2026
  • Fox 5.0 Mustang Tech
Replies
6
Views
474
Fox 5.0 Mustang Tech Jul 18, 2026
dan50
Hard to start when engine is cold
  • 86_Capri
  • Mar 11, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • 2
Replies
32
Views
2K
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Jun 21, 2026
CAMTWO1070
F
Fox 1990 Mustang GT 5.0 A9L – Engine suddenly shuts off but immediately restarts when key turned
  • FishermansFriend
  • Aug 9, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
16
Views
675
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Aug 30, 2026
General karthief
E
2007 GT Stalls when lights or a/c turned on
  • ejscarfo
  • Jun 22, 2026
  • 2005 - 2009 Specific Tech
Replies
3
Views
358
2005 - 2009 Specific Tech Sep 26, 2026
manicmechanic007
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • Fox 5.0 Mustang Tech
Menu
Log in

Register

  • Forums
  • What's new
  • Media
  • Resources
  • Contact
  • Sponsor
X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?

X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?