Heavy accelerator problem- FIXED
11-16-2019, 10:33 AM
#16
AutoX
Join Date: Feb 2010
Location: Kuala Lumpur, Malaysia
Posts: 11
Likes: 0
Received 0 Likes
on
0 Posts
My 89 had a really stiff pedal that would cause my ankle to hurt on long drives. I decided to go through and replace everything and found the wheel on the throttle cable in the valley was very hard to turn, that helped but what really fixed the problem was replacing the throttle cable on the accelerator.
11-16-2019, 12:21 PM
#17
Rennlist Member
sounds like you may have multiple problems. The cables wear over time and do not slide easily in the housing especially if someone tried lubricating with the wrong type of lubricant. If the throttle isnt returning to idle you may have issues with the micro switches... nothing too complex but you will need to remove the airbox to really assess where things are binding.
11-16-2019, 04:55 PM
#18
Drifting
I’ve always thought the S4 accelerator pedal was deliberately heavy.
But just recently I was refreshing intake so changed the pulley wheel (had a new one for years in parts stash), throttle body cable (fairly cheap part) and the pedal cable (picked new one up cheap on eBay, and noticed the original had split in rubber seal at the intake bracket).
The pedal is definitely much lighter, confirmed for me by fellow owner. When I checked the original pulley wheel the bearing was not running perfectly smoothly like the new one, but was not obviously adding friction. Could be the new pedal cable made the biggest difference, especially on my RHD where it has to take a convoluted route.
But just recently I was refreshing intake so changed the pulley wheel (had a new one for years in parts stash), throttle body cable (fairly cheap part) and the pedal cable (picked new one up cheap on eBay, and noticed the original had split in rubber seal at the intake bracket).
The pedal is definitely much lighter, confirmed for me by fellow owner. When I checked the original pulley wheel the bearing was not running perfectly smoothly like the new one, but was not obviously adding friction. Could be the new pedal cable made the biggest difference, especially on my RHD where it has to take a convoluted route.