Brake issue?

sd88supra · 06-21-2011, 09:04 PM

I started hearing (and feeling) a rattling noise, as if it was coming from the front driver side wheel. At first I thought it was the tire so I checked it, looks ok. I noticed, however, that the rattling stops when I press on the brake (it's loudest around 25mph, can't detect it at highway speeds).

Gonna jack up the car and take the wheel off. What should I look for?

Semper_Fi · 06-22-2011, 02:42 AM

Quote:

Originally Posted by sd88supra

I started hearing (and feeling) a rattling noise, as if it was coming from the front driver side wheel. At first I thought it was the tire so I checked it, looks ok. I noticed, however, that the rattling stops when I press on the brake (it's loudest around 25mph, can't detect it at highway speeds).

Gonna jack up the car and take the wheel off. What should I look for?

Check the brake pads. Sounds like time to change the pads.

87hilux7mge · 06-22-2011, 07:29 AM

yea check them. idk if the supras calipers have the pad retention clips/springs. if they do, check to see if any are missing or broken. that would allow the pads to rattle freely inbetween the caliper and rotor.

cre · 06-23-2011, 01:33 AM

The pistons don't back off enough for the pads to rattle if the springs are missing. They just help prevent the pads from dragging and causing unnecessary heat.

The piston has enough range to burn through even the metal backing of a pad... you'd hear grinding long before it would start rattling.

Check for a broken or cracked pad or rotor. Check to make sure all the glides are firmly in place and that the caliper brackets and the calipers are all firmly connected.

Don't discount the possibility of a damaged suspension component either.

87hilux7mge · 06-23-2011, 08:59 AM

definitely true ^^^ in most cases. had this issue with my truck. 20+year old brakes/calipers, old fluid, busted clip and a lil dust and rust. rattled like a SOB till i redid the calipers and pads. im prolly that 1 in 10 million, that is my luck lol.

06-21-2011, 09:04 PM	#1
sd88supra 3" Exhaust Join Date: Oct 2005 Location: San Diego, Ca Posts: 190	Brake issue? I started hearing (and feeling) a rattling noise, as if it was coming from the front driver side wheel. At first I thought it was the tire so I checked it, looks ok. I noticed, however, that the rattling stops when I press on the brake (it's loudest around 25mph, can't detect it at highway speeds). Gonna jack up the car and take the wheel off. What should I look for? __________________ -1987 5 spd N/A with TEMS: low miles! All stock with the exception of electric fans and an '89 front bumper, Yokohama 225/50/16 with stock rims. It's a mess and in the garage. -1987 5 spd Turbo with TEMS: miss-matched tires, needs lots of work, but it runs! Project car. -1988 N/A auto targa: all stock except 18" rims with Falken 265/35/18 in rear and 225/35/18 in front; daily driver.

06-22-2011, 07:29 AM	#3
87hilux7mge walbro fp Join Date: Dec 2010 Location: spokane Posts: 479	yea check them. idk if the supras calipers have the pad retention clips/springs. if they do, check to see if any are missing or broken. that would allow the pads to rattle freely inbetween the caliper and rotor. __________________ 87 toyota 4x4 single cab short box pickup, 7MGZE.

06-23-2011, 01:33 AM	#4
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	The pistons don't back off enough for the pads to rattle if the springs are missing. They just help prevent the pads from dragging and causing unnecessary heat. The piston has enough range to burn through even the metal backing of a pad... you'd hear grinding long before it would start rattling. Check for a broken or cracked pad or rotor. Check to make sure all the glides are firmly in place and that the caliper brackets and the calipers are all firmly connected. Don't discount the possibility of a damaged suspension component either. __________________ If something breaks or you need to contact a member of the administration please post HERE. Unless it's a private or administration matter please post it on the forum. It benefits no one else if car related questions aren't posted for future users and takes away from the time I'm able to spend helping on the rest of the forum. If you're so inclined I'm always more than happy to accept tips via PayPal. Tip Jar --->

06-23-2011, 08:59 AM	#5
87hilux7mge walbro fp Join Date: Dec 2010 Location: spokane Posts: 479	definitely true ^^^ in most cases. had this issue with my truck. 20+year old brakes/calipers, old fluid, busted clip and a lil dust and rust. rattled like a SOB till i redid the calipers and pads. im prolly that 1 in 10 million, that is my luck lol. __________________ 87 toyota 4x4 single cab short box pickup, 7MGZE.

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