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Below is a collection of Jim Grant's Tech Tips sorted by Vehicle Make. These Tech Tips were answers to questions submitted to Jim by ALLDATAdiy.com users over the course of many years.
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  Jim Grant's Tech Tips

94 Ford Aerostar, Front End Clunk
Q: 
I am writing because of a problem with my '94 Ford Aerostar Van. When I turn the steering wheel to make a corner I hear a clunk in the front end and also feel it in the front floor. If I make that same turn in the same direction this will not happen again but if I turn in the opposite direction it will clunk again. If I turn in that same direction it will not do it again until I turn in the opposite direction. It feels like the body may be shifting.

I have had several garages look at it with no solution to be found. I decided to write to you and see if you had any ideas or maybe have run into this problem on another vehicle which may help me out......Robert

A: I would suggest a closer inspection of the bolts that secure the vehicle's front suspension. One problem area is the bolts that secure the upper control arm to the unibody and cross member assembly. There are 5 bolts in all, 2 short and three long bolts that travel through the upper control arm mounting brackets, the unibody and into the cross member assembly. If the bolts are not properly tightened a suspension clunk can develop when the steering wheel is being turned. The factory specifications for tightening these bolts is 145-155 ft. lb.

 
     
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