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Cowtown10's Avatar
 
Join Date: Nov 2007
Location: Calgary AB
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Throttle Pedal Sticking

Had a scare today...throttle stuck wide open, RPMs off the chart until i could shut off the car, and in rush hour traffic.
The way the linkage is connected to the actual pedal is a complete mickey mouse set up. With the ball on the end of the linkage that fits into the back side of the pedal.

There has got to be a better interface than that...anyone have a set up that works well for them???

Thanks in advance
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2002 996TT
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Old 05-29-2008, 06:05 PM
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Never had a problem with one. Do you need a new pedal ?
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1981 UK 930. G50/01 shortened, 964 3.8RS Fibreglass Body Kit, 18" Alloys 8.5" F & 10" R, 225's F & 285's R, Special Colour Metallic Blue Paint, FIA Sparco Evo's, A/C and Air Pump removed, Electronic Boost Controller, GHL Headers, Tial46 WG.
Fitting - New service kit.
Needs Fitting - Innovate XD-16 Kit, Kokeln IC. Stephen's K27 HFS, EVO Intake Assy & his Modded USA Fuel Head.

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Old 06-01-2008, 12:46 AM
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I've never had a problem either. Of course, I've probably just signed my own death certificate by saying so. KNOCK ON WOOD.

What end do you think got stuck? Sure it wasn't the throttle linkage in the engine compartment? If your car is stock, there are a couple of vacuum hoses which have been known to run very close to the throttle body linkage. Also, what about down near the tranny...isn't there a portion of the throttle cable/rod that runs up along the driver side side, near the clutch cable? Could have gotten hung up there...I guess.
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Last edited by sand_man; 06-01-2008 at 10:43 AM..
Old 06-01-2008, 04:45 AM
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Been there! Floored it on the M4 coming back from a service, felt a distinct 'click' through the pedal, jammed wide open until I applied brake, when mercifully it released before I had to cut the ignition...

Never did find out quite what it was, but futzed with/looked at a lot of things, especially in the pedal board area and it hasn't done it since.
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Old 06-01-2008, 09:39 AM
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I'm glad you are o.k. That would have scared the crap out of me.
Old 06-01-2008, 09:52 AM
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Been there ! Give me, a scare too ! Pull the pedal up with my foot luckily it release, because there is no more road ahead off me. Put the car up on the lift and check and replace plastic bushing on the pedal cable on the rear off the car, spray some lube on the cable. It have been a while since I did it I forget how many bushing it was maybe two. I doesn't cost much either. But at least give a peice off mind.

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Old 06-02-2008, 03:07 AM
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Had that happen once to me in a different ride ('69 T-bird), and the memory of panic is so vivid that I think I'll do a quick inspect of the 930!
Old 06-02-2008, 05:18 AM
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It wasnt the linkage in the engine compartment...It was actually the push rod that connects to the back side of the throttle pedal. This is where my mickey mouse comment comes in....the metal push rod has a ball on the end of it which seats into a space on the backside of the pedal. ( a pressure fit). I had the car in for service and they adjusted the throttle linkage. Obviously the mechanic did not entirely seat the end of the push rod into the back side of the pedal, so one I hit the throttle, the push rod dislodged and the rest of the linkage fell through the floor sticking the throttle wide open.
Glad I was slow in traffic and not while under boost
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Old 06-02-2008, 07:28 AM
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This has happened to me several times. What I did was with my foot quickly insert it behind the top of the pedal and pull it back. " Now top that mario andretti". OK, seriously I spoke
with a porsche shop and the bracket that supports the pedal can get weak over time and
bend to the right causing it to bind on the chassis.
I purscased a new one and haven't had another problem. What you can do is remove it,
heat it up cherry red and quickly plunge it into cold water essentially heat treating it to
make it harder and less likely to bend.
Old 06-02-2008, 11:41 AM
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