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Topic: not responding to pedal. (Read 1081 times) previous topic - next topic

not responding to pedal.

86 5.0 ls. Every now and then when I step on the pedal the car is not responding like on the highway i have my foot on the pedal. in my mind I doing 60+ but she will do 45 to 48. then after a min or less it will do what the pedal is position to do. or if I/m doing 50+ it will drop down to 40 to 48mph. But this is not all the time but quite fequently. I'm thinking I need to spray the hinge on the butterfly with wd-40 but what do you guys think? :dunno:
[SIGPIC][/SIGPIC]86 COUGAR LS 5.0 stock. Soon to be project "Cheetara"
85 Ramcharger 318-727 "Big Girl"

not responding to pedal.

Reply #1
Stretched throttle cable is possable, or loose somewhere. Go about and check all things that can cause it. Mine turned out to be the cable was WAY streched

not responding to pedal.

Reply #2
If you can actually press the pedal and don't feel any abnormal stiffness the throttle butterfly is moving fine. Could be TPS, or could even be an out-of-adjustment TV cable (tranny not shifting down like it should)
2015 Mustang GT Premium - 5.0, 6-speed, Guard Green - too much awesome for one car

1988 5.0 Thunderbird :birdsmily: SOLD SEPT 11 2010: TC front clip/hood ♣ Body & paint completed Oct 2007 ♣ 3.55 TC rear end and front brakes ♣ TC interior ♣ CHE rear control arms (adjustable lowers) ♣ 2001 Bullitt springs ♣ Energy suspension poly busings ♣ Kenne Brown subframe connectors ♣ CWE engine mounts ♣ Thundercat sequential turn signals ♣ Explorer overhead console (temp/compass display) ♣ 2.25" off-road dual exhaust ♣ T-5 transmission swap completed Jan 2009 ♣

not responding to pedal.

Reply #3
i think its the TV cable, too.
1979 Ford Fairmont
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5.0L/4R70W/8.8"/5-lug/3" Exhuast


not responding to pedal.

Reply #4
so you think i need to replace the throttle cable?
[SIGPIC][/SIGPIC]86 COUGAR LS 5.0 stock. Soon to be project "Cheetara"
85 Ramcharger 318-727 "Big Girl"

not responding to pedal.

Reply #5
TV, trans kickdown cable.  Very well could be it. They are pr0ne to be messed up on 5.0 EFI's IIRC. If it's not adjusted teh car will feel slugish and underpowered. It will cause teh trans to not kick down also

 

not responding to pedal.

Reply #6
It will also cause the tranny to cook itself.  Check it out!
-- 05 Mustang GT-Whipplecharged !!
--87 5.0 Trick Flow Heads & Intake - Custom Cam - Many other goodies...3100Lbs...Low12's!