Weird front brake problem
Thread Starter
|
Freshman User
Joined: Jun 2007
Posts: 40
Likes: 0
Weird front brake problem
'05 FX4 SCAB, with 10K miles. Tires, 265-70R-17.
From a cold start, no problems. However, after the truck comes up to normal operating temps, I notice the front brake calipers start to drag. As the calipers and rotors start to heat up a gradual pressure on the rotors will increase, until the truck is shut off. After the truck has cooled to ambient temps everything is fine. Then the brake issues will start over once again from a cold start.
Even more weird this doesn't occur every time the truck is driven. It is very intermittent. However, it does seem to happen more often when the temps outside are in the upper 80's - 90's. Reason I say that is, (above) never happens at night. Not one time has it happend after the sun went down. Vampire truck? LOL....
From a cold start, no problems. However, after the truck comes up to normal operating temps, I notice the front brake calipers start to drag. As the calipers and rotors start to heat up a gradual pressure on the rotors will increase, until the truck is shut off. After the truck has cooled to ambient temps everything is fine. Then the brake issues will start over once again from a cold start.
Even more weird this doesn't occur every time the truck is driven. It is very intermittent. However, it does seem to happen more often when the temps outside are in the upper 80's - 90's. Reason I say that is, (above) never happens at night. Not one time has it happend after the sun went down. Vampire truck? LOL....
Elder User
Joined: Dec 2006
Posts: 662
Likes: 2
From: CO
First thing I'd do would be to get some new fluid into the brake system just to rule it out if nothing else. Virtually nobody does it, but brake fluid should really be changed every few years or so at the most. If the fluid in the reservoir is amber, it's time to go.
Lube the caliper pins too while you're in the vicinity.
Lube the caliper pins too while you're in the vicinity.
Thread Starter
|
Freshman User
Joined: Jun 2007
Posts: 40
Likes: 0
Thank you for the advice. I really didn't expect any response being it is such a strange problem. I've thought about the fluid, but, that's about it, considering the truck just now turned 10K miles.
After reading some on the net, I've concluded it could be a myriad of things. What I don't understand about it is, how 20 miles into a trip, the front brakes start to come on while going 70MPH down the highway. Do the same after sundown, and I can't get it to act up. I've done it this way numerous times. Anyway, I presume I'll have to stick to driving at night, till I can get it fixed.
Thanks again.
After reading some on the net, I've concluded it could be a myriad of things. What I don't understand about it is, how 20 miles into a trip, the front brakes start to come on while going 70MPH down the highway. Do the same after sundown, and I can't get it to act up. I've done it this way numerous times. Anyway, I presume I'll have to stick to driving at night, till I can get it fixed.
Thanks again.
Thread Starter
|
Freshman User
Joined: Jun 2007
Posts: 40
Likes: 0
Nope, no warranty. I bought the truck at auction from the dealer. A potential customer drove into a cement parking post at just the right height and diamond the frame. Nutshell, I put the body on another frame. While it's still brand new, obviously this voided the warranty. But for 8K, a little time and sweat, I have a brand new truck.
Junior User
Joined: Dec 2004
Posts: 70
Likes: 0
From: Denver, CO
The '04's and maybe some of the '05's had a known brake issue with the calipers. Ford has a TSB on its somewhere, you probably can find a thread about it in this forum. I noticed some rubbing on mine and the dealer replaced them free of charge under warranty.
Not sure if this is the same issue but you may want to check that TSB and rule out the faulty calipers they installed on the first edition of the F150s.
Not sure if this is the same issue but you may want to check that TSB and rule out the faulty calipers they installed on the first edition of the F150s.
Thread Starter
|
Freshman User
Joined: Jun 2007
Posts: 40
Likes: 0
I got it back from the repair shop today. Turned out it was the master cylinder actuator rod adjustment. Turned the rotors, and added new ceramic pads, serviced the calipers--I didn't need new ones thank God. $200.00 not to bad.
I think a lot could have been prevented had I known about the rod. Never heard of, nor had a vehicle where that happened before. My wife picked up the truck from the repair shop so I never got a chance to ask if the mechanic thought the rod could go out of adjustment again. I suppose it could, if it did once. Craziest thing.
I think a lot could have been prevented had I known about the rod. Never heard of, nor had a vehicle where that happened before. My wife picked up the truck from the repair shop so I never got a chance to ask if the mechanic thought the rod could go out of adjustment again. I suppose it could, if it did once. Craziest thing.
Thread
Thread Starter
Forum
Replies
Last Post
alchemist1
1973 - 1979 F-100 & Larger F-Series Trucks
9
Mar 17, 2014 08:54 PM
