Power Brake Booster

[63Fun]

Whenever I step on the brakes, I hear what sounds like air hissing, and the idle picks up. But this only happens when I step on the brake.
If the diaphragm in the booster was punctured, wouldn't it hiss at all times?
The engine idles great and has great vacuum.
It's a 63 413, so no emissions stuff.

Any help would be great!

 

[saylor]

its gotta be something with the booster. the booster has a vacuum line to intake manifold,, and I guess you are letting in air = idle up.

 

[Stormer]

Yep, a failing booster will whistle. I just had mine rebuilt locally since I couldn't find one anywhere. The one from Summit DOES NOT fit a 72 Imperial even though their website says it does.

 

[63Fun]

I think that there are two boosters available for my car. I have to find out which is the correct one.

 

[saylor]

what kind of car is it?

 

[63Fun]

what kind of car is it?

63 Chrysler New Yorker
413 engine

 

[saylor]

http://www.oreillyauto.com/site/c/d...k=Search_01305_1327418_560&pt=01305&ppt=C0066


one o these ?

 

[ern]

63 Chrysler New Yorker
413 engine

Where did you find a booster? Looking for one for 1963 Newport. Thanks, Ern

 

[68plymouth383]

Welcome to the forum Ern! !

 

[63Fun]

Where did you find a booster? Looking for one for 1963 Newport. Thanks, Ern

I'll most likely have the original rebuilt.

 

[63Fun]

Can anyone confirm if the check valve on this booster is internal and not easily accessible?

I took of the fitting from the rubber line on the booster, but nothing was behind it.

 

[63Fun]

I also hear what appears to be air when I step on the accelerator.