Front Brake Locked Up! - The 1947 - Present Chevrolet & GMC Truck Message Board Network

dnights · 08-18-2012, 01:28 PM

So I am still new to this area but I have had my 81 Chevy C10 Longbed for over three years now and its been a real trooper but starting to have problems.

Just over a year ago I started having issues with the front brakes locking up or pulling to one side when the brakes were applied so I went ahead and got new calipers (which was a headache) and new pads. Well that temporarily solved the problem. My father-in-law has been driving it since I moved and since the weather got extreme hot and no ac, he went back to driving his truck. He has been starting it and making sure it still fires up but he actually tried moving it the other day and the front brakes are completely locked up. I am actually lost on what to do to fix it this time. Anyone has some ideas on what to try first.

J Knight · 08-18-2012, 01:44 PM

Usually its the brake hoses that collapse internally that cause this problem.
Posted via Mobile Device

SBTork · 08-18-2012, 03:01 PM

ditto w/the above reply

If you've done the calipers, I could almost promise you it's the brake hoses.

**hatzie** · 08-19-2012, 01:35 PM

X3. Been there done that on more than just squares. Brake hoses can de-laminate internally making a partial one-way valve. I've seen them block fluid flow to calipers and wheel cylinders too.

msgross · 08-19-2012, 02:19 PM

If you ever change calipers then it's smart to change the hoses as well....

08-18-2012, 01:28 PM	#1
dnights Registered User Join Date: Jul 2010 Location: Lawton, OK Posts: 51	Front Brake Locked Up! So I am still new to this area but I have had my 81 Chevy C10 Longbed for over three years now and its been a real trooper but starting to have problems. Just over a year ago I started having issues with the front brakes locking up or pulling to one side when the brakes were applied so I went ahead and got new calipers (which was a headache) and new pads. Well that temporarily solved the problem. My father-in-law has been driving it since I moved and since the weather got extreme hot and no ac, he went back to driving his truck. He has been starting it and making sure it still fires up but he actually tried moving it the other day and the front brakes are completely locked up. I am actually lost on what to do to fix it this time. Anyone has some ideas on what to try first. __________________ 1948 Chevy 3600 http://67-72chevytrucks.com/vboard/s...d.php?t=417178 1981 Chevy C10 Longbed

08-18-2012, 01:44 PM	#2
J Knight Registered User Join Date: Jun 2011 Location: Baytown TX Posts: 2,219	Re: Front Brake Locked Up! Usually its the brake hoses that collapse internally that cause this problem. Posted via Mobile Device __________________ John 82 Chevy Silverado 350ci/TH350

08-18-2012, 03:01 PM	#3
SBTork Garage wrench Join Date: Feb 2008 Location: LaCrosse, WI Posts: 1,855	Re: Front Brake Locked Up! ditto w/the above reply If you've done the calipers, I could almost promise you it's the brake hoses. __________________ -Adam 90 V1500 GMC Suburban 350/700R4/NP241..... 01 Saturn SL1 stock DD.....

08-19-2012, 01:35 PM	#4
hatzie Moderator Join Date: Oct 2008 Location: Wentworth, NH Posts: 4,977	Re: Front Brake Locked Up! X3. Been there done that on more than just squares. Brake hoses can de-laminate internally making a partial one-way valve. I've seen them block fluid flow to calipers and wheel cylinders too. __________________ 1959 M35A2 LDT465-1D SOLD 1967 Dodge W200 B383, NP420/NP201 SOLD 1969 Dodge Polara 500 B383, A833 SOLD 1972 Ford F250 FE390, NP435/NP205 SOLD 1976 Chevy K20, 6.5L, NV4500/NP208 SOLD 1986 M1008 CUCV SOLD 2000 GMC C2500, TD6.5L, NV4500 2005 Chevy Silverado LS 2500HD 6.0L 4L80E/NP263 2009 Impala SS LS4 V8 RTFM... GM Parts Books, GM Schematics, GM service manuals, and GM training materials... 1973-1991 GM Light Truck Service, Unit/Overhaul, Wiring Manuals, Parts Books and Some 1968-1999 GM Service Training textbooks in PDF 1988-1998 GMT400 CK service manual project 1988-1993 GMT400 CK parts books. 1967-1972 GM Light, Medium, & Heavy Truck Service Manuals in PDF Please include at least the year and model in your threads. It'll be easier to answer your questions. And please let us know if and how your repairs were successful.

08-19-2012, 02:19 PM	#5
msgross Registered User Join Date: Jul 2006 Location: Central PA Posts: 12,201	Re: Front Brake Locked Up! If you ever change calipers then it's smart to change the hoses as well.... __________________ The Garage: 1968 K-10 SWB - "Project Money Pit" 1996 Z-71 - "huntin rig" 1969 C-10 LWB (SOLD) "Project flip that truck or else" 1993 Passport, F@rd 1-ton (SOLD)"Project Cousin Eddie" My Garage Build "The 1,000 footer"



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