89 f150 clutch problem
Thread Starter
|
New User
Joined: Aug 2012
Posts: 22
Likes: 0
From: Mechanicsville
89 f150 clutch problem
okay heres the deal, everything besides the clutch hydralic line is new, master cylinder and slave are new as of yesterday. ive bled the clutch till no air in system and still have problem with the pedal having some pressure but wont return to full up positon, it will come up to about halfway then i have to pull it by hand back up, my fire wall seems ok, im thinking my linkage needs adjusting, any ideas?
Cargo Master
Joined: Jan 2004
Posts: 3,118
Likes: 149
From: South Dakota
I'm assuming you must have a 4 speed transmission with the external slave cylinder. I'm not directly familiar with these, so I don't know if they have an adjustable linkage or not. Have you tried to drive the truck? If you can shift and drive the truck reasonably well, I would do so. I know you think you have all the air out, but driving the truck may get the last of it out. If that doesn't help, maybe try bleeding it a little more after driving it.
Thread Starter
|
New User
Joined: Aug 2012
Posts: 22
Likes: 0
From: Mechanicsville
no sir i got a 5 speed, by linkage im meaning under the dash, the clutch pushrod and clutch pedal linkage, but bout 5 min ago i was messing with and started it i have the drive shafts out and the clutch isnt disenaging all the way trans is neutral, i can stop the yoke with my hand, im just confused as hell by it
Senior User
Joined: Jun 2003
Posts: 134
Likes: 0
From: Pella, IA
I have seen this caused by a couple of different things. On my '89 F-150, the hole was egged out where the shaft for the clutch and brake pedals goes through the pedal support assembly. This resulted in very short travel on the pedal, barely enough to disengage the clutch. It made the truck sort of weird to drive since the friction point was barely off the floor, but I didn't want to swap out the whole pedal box so I just lived with it until I sold the truck.
On my buddy's '93 F-150, the diaphragm spring on the pressure plate cracked around the outside edge, so some of the fingers would no longer engage the throwout bearing. This kept the clutch from releasing all the way and made it impossible to get it into gear.
88n94 is right, though - you may still have air in the lines. Can you get the transmission into gear with the engine running and the clutch depressed? If so, and the truck is driveable, I would drive it around a while and see if it improves.
On my buddy's '93 F-150, the diaphragm spring on the pressure plate cracked around the outside edge, so some of the fingers would no longer engage the throwout bearing. This kept the clutch from releasing all the way and made it impossible to get it into gear.
88n94 is right, though - you may still have air in the lines. Can you get the transmission into gear with the engine running and the clutch depressed? If so, and the truck is driveable, I would drive it around a while and see if it improves.
Senior User
Joined: Mar 2004
Posts: 100
Likes: 0
Could you have a damaged seat on the hydraulic line or maybe even a crack in it? The plastic line is availabe from Dorman at your local parts retailer for around 30 bucks, if my memory serves me correctly. Worth a shot.
Thread
Thread Starter
Forum
Replies
Last Post
1984oldn’slow
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
4
Mar 29, 2019 09:08 PM
AbandonedBronco
Clutch, Transmission, Differential, Axle & Transfer Case
5
Apr 23, 2017 11:07 AM
Frozen_Joker
1987 - 1996 F150 & Larger F-Series Trucks
17
Apr 10, 2014 08:06 AM
mustanginca
1987 - 1996 F150 & Larger F-Series Trucks
3
May 19, 2007 11:58 AM
