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Thread: Brakes grabbing at low speeds
03-26-2007, 02:13 PM #1
Brakes grabbing at low speeds
I've noticed latley that when I am braking from very low speeds, like creeping forward in line at the traffic light, that the brakes like to grab real hard, making the truck lurch to a halt. I know this is probably one of those simple things that I'm not thinking of, but I can't remember what would cause this or what the solution would be. I need to rotate the tires on the truck, so probably when I get around to doing that, I will inspect the brakes. However, this is kind of annoying when I'm creeping along and the brakes flat out grab and stop the truck. So, what am I forgetting that's the solution to the problem. ThanksChristopher
1991 Chevy Suburban 1/2 ton 2WD w/ chevy SBC 350-3/4 ton drivetrain upgrade w/4.10 gears 200K miles
2005 Saturn ION-2 Stock 277K miles
1982 Bronco, 1993 Bronco (sold), 1971 M35A2 Deuce and a Half
There are 10 kinds of people, those who understand binary, and those who dont...
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03-26-2007, 02:39 PM #2
Does it feel like back or front grabbing?
2007 Ford E250(Work van) (Ya, Ya, shut up!)
1996 GMC Sierra SLE 1500 5.7L/4L60E
03-26-2007, 02:56 PM #3
It's somewhat felt like each of different occasions. I'm guessing it's probably the front, but a couple times (mainly when I was facing downhill) it felt like it was the rears.
03-26-2007, 03:02 PM #4
03-26-2007, 09:20 PM #5
Most burb owners would be thankful to have those kind of brakes. A lot of older burbs are not so great in the braking dept.
You don't sound very grateful....I'm just messin with ya.
Does this only happen when the vehicle is first driven after a long sit (ex:overnight), or all the time?Patrick
03-27-2007, 08:51 AM #6
Mainly just from an overnight sit. IIRC, it happened once or twice during the day one day, I was going to get lunch, and then at the end of the day when I was heading home.
03-27-2007, 09:05 AM #7
Technology is great, when it Works,
And one Big Pain in the Ass When it Doesnít.
Detroit Iron Rules, All the Rest are Just Toys.
94 GMC Burban, 5.7L (350), 4X4, Auto
86 GMC Burban, 350, 2 WD, Auto
79 GMC pickup plow truck, 400, Full time 4X4, Auto
86 Pontiac Fiero SE, 2.8L, Auto, only mid engine American car
See a Pattern yet?
15 year GM assembly line worker.
03-27-2007, 09:12 AM #8
Pull the front wheels off and check the condition of the caliper assemblies. Pay close attention to the bolts that the calipers slide on. Crud or rust can cause problems. Spray the caliper bolts with WD40, being careful not to get any on the pads/rotors. See if that helps. Otherwise it could be a problem with the proportioning valve, but that would be rare. Good time to check the pad condition while you are there.There is no way to happiness....happiness is the way.:yipi:
High Desert SoCal
93 K1500 burb (personal) 350 AT 3" Lift 250K+
02 Honda Civic LX
Looking for a 1990's Miata for an engine swap
03-27-2007, 09:28 AM #9
It is good that we have so many different people on here, so that others catch the things that some forget about.
Dam STML, I think itís getting worse.
I was talking to a friend yesterday and in mid sentence just forgot what I was going to say.
Thatís one of the reasons I try to write all my posts in word and then copy and paste my answer. That way if I forget what I'm talking about I can go back and reread all the previous posts.
If it gets much worse I may find myself stopping posting, or talking. LoL
03-27-2007, 09:41 AM #10
Pull your brake drums, and check for a greasy substance. You're brake shoes will be shiny black instead of the typical dull charcoal gray.
If that's the case, replace the shoes, your axles seals, and clean the hell out of your brake assembly. (it's a very messy job, and doesn't clean up easy)
Set aside an entire day to do this job. You'll need half the day to clean, and replace the brakes, and seals, and then the other half to clean yourself up. (dawn dish soap, and an old toilet brush will help the job go faster.)
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