help really stumped
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Senior User
Joined: Aug 2008
Posts: 109
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From: Butler PA
help really stumped
Ok guy and ladies. I have a 81 ford f-150 with a four inch lift
. My problem is when I have the clutch pushed in I feel a clunk in the floor board and in the steering wheele. When the clutch is out it does not have the clunk 
but it only does it when the truck is stopped. I check the front end parts every thing is new and tight. I have never had this problem before. So if anyone has had this problem before or have any info please let me know
. My problem is when I have the clutch pushed in I feel a clunk in the floor board and in the steering wheele. When the clutch is out it does not have the clunk but it only does it when the truck is stopped. I check the front end parts every thing is new and tight. I have never had this problem before. So if anyone has had this problem before or have any info please let me know
Junior User
Joined: May 2009
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clunk in steering wheel and floorboard
from your discription of the problem i would begin by investigating the entire clutch linkage its possible that worn components such as were the clucth pedal pivots or were it ties into the frame is worn it always hard to diagnos noises and clunks without hearing them first hand look everything over closely and keep in mind noise can transfer in rigs and be difficult to pinpoint ex a tranfercase chain jumping can sound like a worn or deftective hub
Posting Guru
Joined: Jan 2009
Posts: 1,321
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From: Mattawa Washington.
Is the clunk while depressing the pedal? is the vehicle still rolling?could be the pivot point of the fork is getting worn, egg shaped and when it pivots far enough it pops to the other side of the worn hole. had this happen on a farm truck.
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Senior User
Joined: Aug 2008
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From: Butler PA
ok no the noise is not while depressing the clutch. After I depress the clutch the whole way to the floor or even have tension on the clutch a little the noise is there. and yes I just found out on the way home it does make the noise when it is rooling also. I was rolling up to a stop light and tried to make the noise I depressed the clutch and moved the steering wheele slightly to one side to an other and the noise was there it is kind of a grinding noise with a little clunk. I dont know what it could be I am lost. what does the clutch have to do with the steering I and so dumb founded
Junior User
Joined: May 2009
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ITs possible you just have more than 1 problem throw out bearing may be one of them and than a steering issue as well your right the clutch shoudnt have anything to with the steering time to put down the mouse and pick up a wrench a start fixing start by replacing your clutch
Cargo Master
Joined: Apr 2004
Posts: 3,162
Likes: 1
From: Vilonia Arkansas
ITs possible you just have more than 1 problem throw out bearing may be one of them and than a steering issue as well your right the clutch shoudnt have anything to with the steering time to put down the mouse and pick up a wrench a start fixing start by replacing your clutch
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Methanoholic
Joined: Mar 2009
Posts: 6,442
Likes: 8
From: Maine (NorCal Native)
I agree, Further investigation is needed, Do not start throwing parts at it until you're sure you've found the problem!
Like was said, get a friend to assist, have them do whatever it takes to make the noise and follow it.
-Enjoy
fh : )_~
Like was said, get a friend to assist, have them do whatever it takes to make the noise and follow it.
-Enjoy
fh : )_~
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Cargo Master
Joined: Apr 2004
Posts: 3,162
Likes: 1
From: Vilonia Arkansas
Exactly was I was meaning, thank you.
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Senior User
Joined: Aug 2008
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From: Butler PA
ok thanx guys I did have a friend help me I looked at the linkage and didnt see nothing unusual. I just changed the throw out bearing and fky wheel but the clutch was still in good shape. I do have a bad trans mount. COuld the cab mounts have anything to do with it? because my cab mounts are shot. I am going to replace all the body mount in the truck anyway so I guess I will know if that is the problem. anyway thanx for the info
Methanoholic
Joined: Mar 2009
Posts: 6,442
Likes: 8
From: Maine (NorCal Native)
You did all that work to get the Transmission out, Replaced the Flywheel and Throw out bearing with out replacing the clutch disk and pressure plate...?
That is a decision you'll likely regret.
-Enjoy
fh : )_~
That is a decision you'll likely regret.
-Enjoy
fh : )_~
Post Fiend
Joined: Jul 2004
Posts: 8,786
Likes: 28
From: Northern California
Replace the bad transmission mount. This could be the cause of your trouble, and if it's bad, it needs to be replaced anyway.
1980-1981 F-series also had a problem with the firewall cracking around the steering column opening, and brake master cylinder, or brake booster due to flexing. There was a special reinforcement kit avaliable to correct the problem. This might also be a cause for a clunk, because the brake and clutch pedal are on the same bracket as well.
Just some things to look around for.
1980-1981 F-series also had a problem with the firewall cracking around the steering column opening, and brake master cylinder, or brake booster due to flexing. There was a special reinforcement kit avaliable to correct the problem. This might also be a cause for a clunk, because the brake and clutch pedal are on the same bracket as well.
Just some things to look around for.
