Power Brake Booster

[96-2D-Hoe]

Is the booster supposed to be hissing inside the engine bay when I press the pedal?

Just installed a Cardone Reman and the pedal returns to the top really slowly.

Any ideas?

Thanks.

 

[SUBURBAN5]

Really slow ima lean towards no.... is the pedal hard to push down?

 

[RawbDidIt]

Is the booster supposed to be hissing inside the engine bay when I press the pedal?

Just installed a Cardone Reman and the pedal returns to the top really slowly.

Any ideas?

Thanks.

Mine doesn't. Only two fluids connected to the system though: air (vacuum) and brake fluid. Make sure everything is hooked up correctly and then check for vacuum leak and inadequate brake fluid pressure, gotta be one of the two.

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[96-2D-Hoe]

Works ok if I gently push the pedal, but if I push it hard the brakes drag for a second or two while driving. It can't be right cause it's dangerous.

 

[RawbDidIt]

Works ok if I gently push the pedal, but if I push it hard the brakes drag for a second or two while driving. It can't be right cause it's dangerous.

Drag as in they stay engaged longer than the pedal is pressed, or drag as in they're slow to respond to hard braking? I'm leaning towards the brake system rather than vacuum as you'd have a hiss regardless of brake application with a vacuum leak.

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[SUBURBAN5]

Isn't there a test with the vehicle off and pressing the brake to test the booster?

 

[RawbDidIt]

Isn't there a test with the vehicle off and pressing the brake to test the booster?

Bet there is, I just don't know it lol.

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[SUBURBAN5]

I think it's something like pump 3 times and hold it and then start the truck to see if it pushes up or something. It was on the rock auto website whenever I bought my new booster. Never tried it cause I knew I needed a booster since my abs module was slammed against it lol

 

[RawbDidIt]

I think it's something like pump 3 times and hold it and then start the truck to see if it pushes up or something. It was on the rock auto website whenever I bought my new booster. Never tried it cause I knew I needed a booster since my abs module was slammed against it lol

I see the logic there, worth a shot.

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[SUBURBAN5]

I would. Especially if its hissing. Also i would test the fitting connector to the hose. Think it's like a pcv valve with the vacuum.... forgot the name of it....