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Topic: coach pulls hard to the left. (Read 1934 times) previous topic - next topic

coach pulls hard to the left.

I have an intermittent problem that I need some help with.  After making a sharp turn turn at a stop sign to the right the coach pulls hard to the left. after making the turn.  It pulls to the left for a few miles then  mysteriously straightens out and all is well.  I have had the front brakes serviced twice with no help.  I measured the wheel temp after this and both wheels were the same temp and there is no smell of hot brakes.  Is there anything in the steering box or suspension that could cause this?  Any suggestions would be appreciated. 
Cheers,
Terry

Re: coach pulls hard to the left.

Reply #1 –
Maybe trailing arm bushings/.Spring perch bushings./ maybe steering box.

Re: coach pulls hard to the left.

Reply #2 –
Is it possible that the Safety Steer stabilizer is sticking?

Re: coach pulls hard to the left.

Reply #3 –
A rear brake hanging will also cause a pull to one side.

Re: coach pulls hard to the left.

Reply #4 –
King pin seizing?

Re: coach pulls hard to the left.

Reply #5 –
Check heating on rear brakes for sticking caliper. Jack front end and check components moving wheels side to side. Good chance this could be the problem. I like to grease kingpins with tires off the ground. Hand gun will generate more pressure than air grease gun. Check PS fluid level.

Ours pulls badly off the road when passing roadside chicken BBQ in Mexico.  ^.^d

Pierce

Re: coach pulls hard to the left.

Reply #7 –
A slightly stuck ride height valve caused our coach to lean and the coach to pull.

Coach would not always come back to the exact ride height.  Twisted.  Look at the air bags.  All should measure the same height.

Hope this helps

Re: coach pulls hard to the left.

Reply #8 –
What was the result? 
Thanks,MM

Re: coach pulls hard to the left.

Reply #9 –
The coach is in the shop. No word yet.  Could it be the Safety Steer is hanging up when I turn sharp right?  I drove it last weekend and watched my hard right turns, no problems at all she tracked good.

Re: coach pulls hard to the left.

Reply #10 –
Yes. Most likely the transverse shock .

Re: coach pulls hard to the left.

Reply #11 –
Got the coach out of the Ft Walton Beach shop after a week.  They found nothing wrong and said everything was fine. I paid $150.00 for diagnosis time and drove off.  The first right turn I made the coach started pulling to the side.  I opened the side window and to my amazement I heard a grinding noise coming from the right front wheel well.  I stopped and investigated the noise and found the right disc was very shiny and 20 degrees hotter than the left.  I  pumped the brakes numerous times and continued driving.  The coach returned to straight tracking.  I  did not return to the repair shop.  I am going to take the coach to Horn truck repair in Mobile, Al. to look at the dragging right brake.  I trust them as they repaired my rear brakes six years ago.  The only problem is that they are 100 miles from my home. Lesson learned use a repair shop who stands by their work. I will up date after Horn truck repairs the brakes.
Terry

Re: coach pulls hard to the left.

Reply #12 –
Sounds like the caliper is not releasing/the lazy side is not retracting as it should.

When was the last time the caliper slide pins were inspected? Calipers PROPERLY lubed?

I recommend adding the retractor spring kit when you have them serviced.

And, since many fire trucks use the same system, you might check with your local fire department for where/who does their work before committing to a 200 mile roundtrip.

Re: coach pulls hard to the left.

Reply #13 –
The repair shop in fort Walton beach is the one who services all county fire trucks. Last year I spent $1000.00 with them to disassemble, lube and  add helper springs.  They used the clay based lube also. They even replaced a leaking wheel seal.  The coach started the same problem soon after they repaired the brakes.  The pulling problem was the original issue that I had. 

Re: coach pulls hard to the left.

Reply #14 –
Wonder if they reused the old slide pins that may have been pitted and  therefore seized much more quickly than good ones???

Re: coach pulls hard to the left.

Reply #15 –
If the bushings have too much clearance the caliper can get cocked when the brakes are applied. Or as Brett said pitted pin can cause the same issue. Suggest you back off that caliper for the 100 mile trip. There is a post and even maybe a video on how to do it on the forum.
John. the safety steer wouldn't cause the rotor to heat up.

Re: coach pulls hard to the left.

Reply #16 –
Fix the brakes , then drop the steering shock off .

Re: coach pulls hard to the left.

Reply #18 –
My calipers required replacing the bushings.  Plus the pins.  Plus adding the helper springs

Re: coach pulls hard to the left.

Reply #19 –
Oh the joys of future projects. Brakes are on the list. While being able to brake properly is quite up there with being able to breathe well, I still think that I might want to go and do it myself. Here's a perfect example of what happens when you take your coach to a place to have work done pay them good money and get nothing.