Most likely a defective brake booster. It should hold vac indefinitely.
I busted one on the old dodge Aries -- stalled every time I stepped on
the brakes.
Peter
Peter Frederick wrote:
Most likely a defective brake booster. It should hold vac indefinitely.
Sometimes the brake booster and master cylinder fail together. What
sometimes happens is the M/C rear seal fails and fills the brake booster
with brake fluid. The brake fluid eats a hole
I thought luther said his brakes were spongy. If he didnt have power
assist they would be hard.
David Brodbeck wrote:
Peter Frederick wrote:
Most likely a defective brake booster. It should hold vac indefinitely.
Sometimes the brake booster and master cylinder fail together. What
Kaleb C. Striplin wrote:
I thought luther said his brakes were spongy. If he didnt have power
assist they would be hard.
Yeah, I don't think what I described is Luther's problem. If the brakes
are spongy he's either got air in the system or a bum master cylinder.
Sometimes they leak
When my MC went on the blink, the pedal went almost to the floor on the
first push. Scary. But I had a combination of failing vac.pump and a bad MC.
On 11/21/05, David Brodbeck [EMAIL PROTECTED] wrote:
Kaleb C. Striplin wrote:
I thought luther said his brakes were spongy. If he didnt have
My '82 300CD's brakes are funky. They are very spongy and you have to push
them harder to get the same break action. I capped off all vacuum lines and
checked the vacuum and have more than 20hg at idle and it drops 5-8hg each time
I push the brakes and quickly builds back up. I drove the car
Luther; I had very similar problem on my 300SD. Turned out to be a broken
poppet valve (exhaust, to the engine) in the vacuum pump.
On 11/21/05, Luther Gulseth [EMAIL PROTECTED] wrote:
My '82 300CD's brakes are funky. They are very spongy and you have to push
them harder to get the same break
My '82 300CD's brakes are funky. They are very spongy and you have to
push
them harder to get the same break action.
They need bleeding.
[vacuum] dropped to almost zero after about 15min. Is this normal?
Yes, I think so, depending on where you measured it. At the tap for
vacuum
Vacuum is not your problem. First try bleeding all the brake lines. If
that doesnt work, your master cylinder is bad.
Luther Gulseth wrote:
My '82 300CD's brakes are funky. They are very spongy and you have to push
them harder to get the same break action. I capped off all vacuum lines
Kaleb C. Striplin wrote:
Vacuum is not your problem. First try bleeding all the brake lines. If
that doesn't work, your master cylinder is bad.
I agree with Kaleb (and hope we're right ;-).
Marshall
--
Marshall Booth (who doesn't respond to unsigned questions)
der Dieseling
] brake problem
My '82 300CD's brakes are funky. They are very spongy and you have to
push
them harder to get the same break action.
They need bleeding.
[vacuum] dropped to almost zero after about 15min. Is this normal?
Yes, I think so, depending on where you measured it. At the tap
Luther Gulseth wrote:
Here's the rest of the story. All 4 calipers were just rebuilt and 4 new hoses
were installed. My indy thought the MC was suspect immediatly out of the box
(it's a rebuild from Autozone). He bled nearly 1 whole qt of Valvoline Syn+
through the system. The brakes all
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