Need Some Help Please... '77 Front End Thud
Thread Starter
Instructor
Joined: Sep 2013
Posts: 101
Likes: 0
From: M TN
Need Some Help Please... '77 Front End Thud
So I was out driving the '77 this weekend and there is a new problem developing.
Occasionally, when I turn the car to the left, I get a "thud" or "thunk" sound that seems to be coming the front-left of the car. Doesn't happen every time but every once in a while. The front-end feels super tight at the steering wheel and nothing appears to be loose under the car. And this only happens when turning to the left, never to the right.
Any idea what this might be? One side note... I replaced the Power Steering Control Valve about a month ago. Could I have screwed something up with that?
Any help appreciated.
Occasionally, when I turn the car to the left, I get a "thud" or "thunk" sound that seems to be coming the front-left of the car. Doesn't happen every time but every once in a while. The front-end feels super tight at the steering wheel and nothing appears to be loose under the car. And this only happens when turning to the left, never to the right.
Any idea what this might be? One side note... I replaced the Power Steering Control Valve about a month ago. Could I have screwed something up with that?
Any help appreciated.
Race Director
Joined: Apr 2009
Posts: 19,294
Likes: 2,753
From: Charlotte NC
I am seriously wondering if your front end is OK.
Are you SURE that ALL bushings are in good shape and are attached correctly and you have NO missing bolts and washers from them....and that the upper control arms are properly secured as designed. I have seen the nuts get loose on upper control arms and the shims fall out and can make this sound.
Sway bar end links and bushings in good shape and tight.
NO broken welds on the cradle where the lower control arms are know to have happen.
DUB
Are you SURE that ALL bushings are in good shape and are attached correctly and you have NO missing bolts and washers from them....and that the upper control arms are properly secured as designed. I have seen the nuts get loose on upper control arms and the shims fall out and can make this sound.
Sway bar end links and bushings in good shape and tight.
NO broken welds on the cradle where the lower control arms are know to have happen.
DUB
Pro
Joined: Nov 2013
Posts: 730
Likes: 37
From: Catoosa Okla
Have you checked the upper and lower ball joints? They can clunk and pop, especially under load. BTW, your faulty parts will be tied to a load related area, bvy the description you give. The fact it happens in a turn gives this clue away. Post back with your finding!
