Clunk when downshifting pulling trailer
I noticed that twice this past week my 09 Ford did some type of clunk when it was in tow/haul mode and I was pulling a 20ft. trailer weighing in around 4K pounds. It only did it when I was barely ...
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It is important to pay attention to where the clunk noise is located as you sit in the drivers seat, is it right next go you from around the dog house or further back where the differential is, or all the way back where the trailer is hooked.
There are certain areas that that give you a clue, a clunk when you step on the brake and sounds up front are the brake pads climbing up and banging on the calipers.
A clunk next to you when applying the brakes can be the U joint going bad my first choice or the transmission.
A clunk where the differential is located can be the rear U joint or the crown and pinion that are not properly set up.
A clunk at the rear of the RV is the trailer moving forward as the RV begins to decelerate and is taking up the little bit of slack on the ball and the arm that connects to the RV, this is normal and should be eliminated by adjusting the response time of the electric brakes.
Last but not least there can be clunking noises coming from the front end in the suspension and/or the sway bar as the RV starts to slow down and the suspension dips down, worn bushings tend to clunk at the oddest times.
I hope this helps a little bit.
navegator
There are certain areas that that give you a clue, a clunk when you step on the brake and sounds up front are the brake pads climbing up and banging on the calipers.
A clunk next to you when applying the brakes can be the U joint going bad my first choice or the transmission.
A clunk where the differential is located can be the rear U joint or the crown and pinion that are not properly set up.
A clunk at the rear of the RV is the trailer moving forward as the RV begins to decelerate and is taking up the little bit of slack on the ball and the arm that connects to the RV, this is normal and should be eliminated by adjusting the response time of the electric brakes.
Last but not least there can be clunking noises coming from the front end in the suspension and/or the sway bar as the RV starts to slow down and the suspension dips down, worn bushings tend to clunk at the oddest times.
I hope this helps a little bit.
navegator
