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Intermittent Brake issues |
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Cobratyler
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Joined: 28-January-2025 Location: Alabama Status: Offline Points: 5 |
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Topic: Intermittent Brake issuesPosted: 06-April-2025 at 9:26AM |
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Hey guys, I have a 1970 Torino cobra. While out for a drive yesterday I had what felt like brake/brakes starting to bind. My question is where should I start on diagnosing this issue? I have already jacked the car up and all the wheels were free spinning.
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DJsTorino
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Joined: 08-November-2021 Location: Michigan Status: Offline Points: 200 |
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Posted: 07-April-2025 at 6:16AM |
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How old are the rubber lines? I had to replace all the rubber flex lines in my car as they had swelled up inside and were causing the brakes to drag.
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Cobratyler
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Posted: 07-April-2025 at 10:48AM |
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I’m not sure I just got the car a few weeks ago. But I’d be willing to bet they’re pretty old.
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Rockatansky
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Joined: 30-July-2010 Location: On The Road Status: Offline Points: 6398 |
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Posted: 07-April-2025 at 11:10AM |
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fronts or rears? both? disc, drum? loose, rusted / disconnected hardware in a drum can allow the shoes to apply pressure to the drums
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72 GT Ute
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Jaybee
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Joined: 28-July-2024 Location: Chesapeake, VA Status: Offline Points: 51 |
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Posted: 07-April-2025 at 2:31PM |
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I had a brake hose go bad a few months ago. Looked fine on the outside, but fluid leaked between the layers, causing the inside to balloon together and block the fluid flow.
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Cars are meant for driving
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handsofstone
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Joined: 13-April-2018 Location: Northeast Status: Offline Points: 4229 |
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Posted: 08-April-2025 at 9:13AM |
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If the e brake has been applied, look to see if the cables are stuck where they enter the backing plate. I have had similar issues over the years and that waa the problem. An easy way to tell is to see if the cables under the floor are drooping down.
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Wayner315
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Joined: 19-October-2021 Location: Alberta Status: Offline Points: 225 |
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Posted: 08-April-2025 at 10:29AM |
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To expand on the rubber line issue, my understanding is that the rubber lines will let the enormous (thousands of psi?) pressure from the brake pedal through to the caliper/shoes, but then the relatively low pressure, once the pedal is depressed can't make it's way back up the line, hence the sticking. Best of luck, hope this helps.
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72 Gran Torino formal roof Brougham
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Cobratyler
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Joined: 28-January-2025 Location: Alabama Status: Offline Points: 5 |
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Posted: 04-May-2025 at 9:53AM |
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Hey guys I wanted to thanks for your reply’s. Sorry it’s been awhile I’m sure you guys know how life gets in the way. Anyway, I finally got a chance to look and the brake hoses are brand new. Both front wheels had resistance while trying to free spin them. The drivers side outside brake pad was significantly worn compared to the one on the inside. The passenger side did not show significant ware on the pads but still had resistance. I shot some WD40 on the sliders to see if I could get them to start moving freely. If that doesn’t work would caliper replacement be the next move?
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handsofstone
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Posted: 04-May-2025 at 10:40AM |
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Try a little lithium grease on the slider. A little...
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Rockatansky
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Posted: 04-May-2025 at 11:23AM |
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Rockauto shows the 1970 calipers use pins in rubber bushings? at least disassemble, clean & reassemble. be careful what lube you use so as not to swell up / make the rubber funky
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72 GT Ute
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Cobratyler
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Posted: 04-May-2025 at 1:00PM |
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Ok I’ll disassemble and clean up and see how it goes.
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