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Car Forum / Ford / Ford Trucks / November 2005Pulling problem on 1998 E-250 van.
Over a period of time a very strong pull developed in the front end when applying the brakes. The van pulls left only slightly when the brakes are cool to warm. As the brakes heat up from heavy use, the pull gets much worse. It will totally change lanes if you do not hold tightly to the wheel when you brake hard. Everything in the brake system has been changed. One bushing in the suspension system was slightly worn, so it was also changed. Rear brakes were completely replaced earlier this year, also. I carrying about 10,000 lbs gross on board. My mechanic shop has given up on solving this problem. They are very well versed in Ford products, so they are experts in all areas of mechanic work; but this one has them all puzzeled. Any suggestions? >Over a period of time a very strong pull developed in the front end when >applying the brakes. The van pulls left only slightly when the brakes are [quoted text clipped - 7 lines] >products, so they are experts in all areas of mechanic work; but this one >has them all puzzeled. Any suggestions? Does "everything" include the hoses? Calipers?? Proportioning valve?? In my case, it wasn't the normal things you'd necessarily look for that were causing the same problem. The culprit was the brake line itself. At some point...I think it was when the wheel bearing was going bad...the left front brake line was heated and the rubber inside the stainless steel braid had deteriorated. The fluid would flow near normal to the caliper, but would be slow on the return causing the brake to bind. What made it hard to diagnose was that there was no visible markings on the exterior of the brakes line, nor was the flow noticeably different to the brake. > Over a period of time a very strong pull developed in the front end when > applying the brakes. The van pulls left only slightly when the brakes are [quoted text clipped - 9 lines] > > > Over a period of time a very strong pull developed in the front end when > applying the brakes. The van pulls left only slightly when the brakes are [quoted text clipped - 7 lines] > products, so they are experts in all areas of mechanic work; but this one > has them all puzzeled. Any suggestions? Sounds like a caliper that's not retracting (aka stuck) to me. As it heats the rotor from friction, it gets less and less effective. Finally, after replacing EVERYTHING else, we found the rubber hose ply separated and held pressure...very strange symptoms...like yours. I see other people thought this right off. > Over a period of time a very strong pull developed in the front end when > applying the brakes. The van pulls left only slightly when the brakes are [quoted text clipped - 7 lines] > products, so they are experts in all areas of mechanic work; but this one > has them all puzzeled. Any suggestions? Take a pressure check on both lines,, I think you will find your problem from this check! or , frozen calipher, deffective calipher ect,, but I really think from your report you are having a pressure problem!! > Over a period of time a very strong pull developed in the front end when > applying the brakes. The van pulls left only slightly when the brakes are [quoted text clipped - 7 lines] > products, so they are experts in all areas of mechanic work; but this one > has them all puzzeled. Any suggestions? |
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