Brake Temps
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Brake Temps
I have a 2006 F350, last weekend I got back from Home Depot and noticed a faint smoke coming from the RR wheel of the truck and when I checked it out I could feel the heat coming off of it. I assumed it was a sticking caliper so I borrowed a infrared thermometer from a friend of mine. I took the truck out last night and really worked the brakes trying to free up what i assume is a sticking caliper, no smoke when i got home. I took it for a ride today, about 50 minutes under normal driving conditions, and didn't notice any smoke when I got back again. I shot the brake temps and they were as follows:
RR- 193*
LR- 168*
RF- 131*
LF- 118*
Does this much variance in brake temps look normal? And does a RR brake temp of 193* look high, or like a sign that the caliper is sticking?
RR- 193*
LR- 168*
RF- 131*
LF- 118*
Does this much variance in brake temps look normal? And does a RR brake temp of 193* look high, or like a sign that the caliper is sticking?
Fleet Mechanic
Joined: Nov 2011
Posts: 1,825
Likes: 43
From: Land of Taxes
You will cause a fire before "working it out".
You have a frozen caliper, or slider pin(s), or collapsed rubber hose.
Or... even more fun, the parking brake shoes have detached from the backing plates because the anchor pins have pulled through the rotted brake plates and are now floating around behind the rotor hat getting efficiently ground to metal dust Fun squared.
Take your pick. No way to guess. Pull it apart and inspect.
All of these are well-known issues on 99-16s. Desert or rust belt trucks.
I'll bet 2017+ has the same problems, hey why engineer it out after 23+ years when it all works so well?
You have a frozen caliper, or slider pin(s), or collapsed rubber hose.
Or... even more fun, the parking brake shoes have detached from the backing plates because the anchor pins have pulled through the rotted brake plates and are now floating around behind the rotor hat getting efficiently ground to metal dust Fun squared.
Take your pick. No way to guess. Pull it apart and inspect.
All of these are well-known issues on 99-16s. Desert or rust belt trucks.
I'll bet 2017+ has the same problems, hey why engineer it out after 23+ years when it all works so well?
Lead Driver
Joined: Mar 2006
Posts: 6,259
Likes: 438
From: IL
Same thing on my 03 F350, RR would hang, get really hot then next time, it would be normal temps, I pulled the caliper and noticed the boot was ripped on the piston. When I took it apart the outside of the piston was rusted and pitted. Replaced the caliper greased the slide pins real good, no more problems so far.
FTE Leadership Emeritus
Joined: Sep 2000
Posts: 23,174
Likes: 1,678
From: Stephensville WI
I suspected a RR hung caliper on my old '07 F-250, but I wasn't sure so I kept driving. My first indication of a serious issue was when the stuck caliper wore through and brake fluid would squirt onto the hot rotor when I hit the brakes. I left a heavy smoke trail. Thank goodness for the parking brake! 
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donna
1987 - 1996 F150 & Larger F-Series Trucks
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Jul 20, 2000 11:03 PM
