possibly stuck caliper
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Senior User
Joined: Oct 2004
Posts: 475
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From: Portsmouth,VA
possibly stuck caliper
ok so I heading home from going to hardware store and after taking off from light i notice that my truck is being sluggish, so I turned off AC and still slow, I got home and I smelled a burning smell and their was smoke coming from the drivers front wheel not a lot but enough I could see it. I touched the metal part of the rim and bout burned my hand, checked the others wheel and they were fine. I changed the brakes about 2 months ago..
So what would cause the front driver caliper to not release the brake?
I havent took off the wheel but what damage may be done, caliper ? rotor?
If I change the calipers do I need to change both sides?
thanks in advance
So what would cause the front driver caliper to not release the brake?
I havent took off the wheel but what damage may be done, caliper ? rotor?
If I change the calipers do I need to change both sides?
thanks in advance
Post Fiend
Joined: Jan 2005
Posts: 8,402
Likes: 10
Could be a number of things. It could be a defective rubber brake hose on that side. It could be the piston in the caliper is sticking, especially if the piston is phenolic (plastic) rather than metal. It could be that the caliper sliders are sticking.
As for damage I would think there is none.
As for damage I would think there is none.
Elder User
Joined: Feb 2006
Posts: 592
Likes: 1
I would just replace that caliper. Clean and grease the slides. My RV did that in CO a few years ago. Surprised how cheap the dual cylinder calipers were. If you haven't replaced the brake fluid in a couple of years it probably boiled some but you wouldn't have to do it. Bleed it real good if you don't replace the fluid.
You could just clean the slides but I wonder about your piston(s) and whether the cylinder(s) need honed. For me, it wasn't worth it to hone it so I just got new calipers.
You could just clean the slides but I wonder about your piston(s) and whether the cylinder(s) need honed. For me, it wasn't worth it to hone it so I just got new calipers.
Posting Guru
Joined: Mar 2005
Posts: 1,004
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From: In the Middle
.
Stuck caliper? Defective rubber hose? Frozen slides?
How can you tell?
Jack the tire that has problems off the ground. Verify that the tire will not turn easily. Pump the brake pedal a few times if you need to. Loosen the bleeder screw.
If pressurized brake fluid shoots out, there's a good chance it's the rubber hose causing your problem.
If pressurized brake fluid does NOT shoot out, then there's a good chance it's something to do with the caliper.
.
Stuck caliper? Defective rubber hose? Frozen slides?
How can you tell?
Jack the tire that has problems off the ground. Verify that the tire will not turn easily. Pump the brake pedal a few times if you need to. Loosen the bleeder screw.
If pressurized brake fluid shoots out, there's a good chance it's the rubber hose causing your problem.
If pressurized brake fluid does NOT shoot out, then there's a good chance it's something to do with the caliper.
.
Thread Starter
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Senior User
Joined: Oct 2004
Posts: 475
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From: Portsmouth,VA
ok! this is what I did, I could not jack the tire off the ground cause the truck was parked in the dirt driveway, anyway I pumped the pedal a few times and then opened the bleeder, nothing came squirting out like you described but it did nothing then a second later the fluid stared running out. I let it run for a bit but it seemed clear not burnt. It still smells bad in that area but it might be the brake lube on the pads because thats burnt black instead of red like the other side.
I checked the brake line and dont see nothing un ordinary so idk!
Im gonna change the calipers anyway, from what I read calipers are wear items and dont last forever that thell fell at some point. The calipers on there are original to the truck and the truck is a 97 so 12 or so years old.
As far a the fluid it self, its brand new changed it when I changed brakes nice and clear..
thanks again for everyones help, fell free to post any other suggestion or comments.
I checked the brake line and dont see nothing un ordinary so idk!
Im gonna change the calipers anyway, from what I read calipers are wear items and dont last forever that thell fell at some point. The calipers on there are original to the truck and the truck is a 97 so 12 or so years old.
As far a the fluid it self, its brand new changed it when I changed brakes nice and clear..
thanks again for everyones help, fell free to post any other suggestion or comments.
Former Vendor
Joined: Mar 2009
Posts: 8,098
Likes: 10
From: Westford, MA
When you replace the calipers,have someone help you with bleeding them. Typically an easy way to do it is have a guy on the caliper bleeding and a guy in the truck pumping up the brake pedal.
Tell your friend to pump up the brake pedal until it gets hard,then to push down on the brake pedal while you crack the bleeder.The brake pedal will go to the floor, close the bleeder and repeat the process 3-4 times until all of the air is out of the brake line.
Tell your friend to pump up the brake pedal until it gets hard,then to push down on the brake pedal while you crack the bleeder.The brake pedal will go to the floor, close the bleeder and repeat the process 3-4 times until all of the air is out of the brake line.
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Cranky Old Guy
Joined: Mar 2008
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From: Raphine, Virginia
Another thing to check is if the rotor got hot enough to warp. Especially if it is discolored. Also that rubber line can be bad without visual signs. If it feels soft def. replace it. If I was changing the calipers, I'd go on and replace the rubber lines. I don't mind doing stuff once, but hate to tear things apart twice.
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Former Vendor
Joined: Mar 2009
Posts: 8,098
Likes: 10
From: Westford, MA
Another thing to check is if the rotor got hot enough to warp. Especially if it is discolored. Also that rubber line can be bad without visual signs. If it feels soft def. replace it. If I was changing the calipers, I'd go on and replace the rubber lines. I don't mind doing stuff once, but hate to tear things apart twice.
Thread Starter
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Senior User
Joined: Oct 2004
Posts: 475
Likes: 0
From: Portsmouth,VA
thanks everybody, replaced calipers and hoses on both sides, seems to have a firmer brake petal but could be imagination. cut the hose open to see any damage but couldn't tell really, the opening in the hose is really small compared to the outside diameter of the hose. hopefully its taken care of thanks again
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