86 5.0 idle ramps up and down, but runs fine while driving...... - Ford & Mustang Forums at Muscle Mustangs & Fast Fords Magazine Muscle Mustangs & Fast Fords

86 5.0 idle ramps up and down, but runs fine while driving......

  
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86 5.0 idle ramps up and down, but runs fine while driving......

 
DVS_86_5liter DVS_86_5liter
New User | Posts: 10 | Joined: 05/08
Posted: 05/09/08
06:29 AM

ok so my 86 5.0 keeps having this idling problem, it runs great under throttle and never acts funny but when i get to a stop light it'll start ramping up or stay at around 1200 RPM's when i first got it it idled perfect around 800 or so....i need help so i can solve this problem. Any Shops around the Northern part of indiana that specialize in mustangs?  

 
volans87 volans87
New User | Posts: 6 | Joined: 06/08
Posted: 06/12/08
09:26 PM

sounds like your idle air control valve is shot or dirty. located on the throttle body you can try taking a can of throttle body cleaner and clean the gunk out of the iac or go to your local auto parts store and pick up a new iac. simple removal and installation shouldnt take u anymore than 20 minutes if that.  

 
dequan88LX dequan88LX
New User | Posts: 1 | Joined: 10/09
Posted: 10/02/09
09:21 PM

hey im new to this but my 88 lx was acting the same way clogged up lines but wonting to know if any one know about a used good T-5 transmission for sale i can pick put any where in indiana im from muncie thanks for the help  

 

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