Author Topic: Hard brake pedal  (Read 1639 times)

Kelley W King

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Hard brake pedal
« on: November 28, 2022, 03:34:59 AM »
I have two 69 Camaros. One z28 and one SS L78 both power disc brake cars. Both have have the boosters replaced and brakes rebuilt by po. The Z has an almost touchy brake feel while the SS has a hard pedal almost like it would with the engine not running. The vacuum is 14 or so at idle, the booster holds vac but it takes serious pedal pressure to stop. I am thinking booster but would like to hear you guys input. I also have replaced the vac valve on the booster as this caused a similar problem on my GTO.
69 Z28 RS Scuncio Hi Performance
69 SS L78
67 SS Chevelle
64 Corvette
66 GTO Tiger Gold
77 Trans Am Special Edition

David K

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Re: Hard brake pedal
« Reply #1 on: November 28, 2022, 07:07:12 PM »
Can you upload pictures of each? Itís quite possible there is a incorrect or component missingó(Iíve seen this before) but pictures alway help.

Kelley W King

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Re: Hard brake pedal
« Reply #2 on: November 28, 2022, 08:28:06 PM »
Had not thought about comparing the two. I will try to get a few pics if I get out to the shop this evening.
69 Z28 RS Scuncio Hi Performance
69 SS L78
67 SS Chevelle
64 Corvette
66 GTO Tiger Gold
77 Trans Am Special Edition

Chuck-68-Cam

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Re: Hard brake pedal
« Reply #3 on: November 28, 2022, 11:46:18 PM »
I'm with you Kelly. In my experience, hard pedal is usually something with the booster/vacuum.
Chuck

68 Camaro SST 350/TH400

Kelley W King

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Re: Hard brake pedal
« Reply #4 on: November 29, 2022, 02:49:11 AM »
I think I will swap out the booster. It was not as bad when I got the car so it must be just going bad.
69 Z28 RS Scuncio Hi Performance
69 SS L78
67 SS Chevelle
64 Corvette
66 GTO Tiger Gold
77 Trans Am Special Edition