Tahoe brakes assisted by power steering

[joechevy2]

Hi all,

 

I have a question about the power brakes on my 02 Tahoe LT. My power brakes

on my tahoe are vaccum assist. Today I went to the car show in San Francisco

and looked over an 05 tahoe LT. I spotted, when looking under the hood, that it

had power steering assist brakes. Does anyone know if this is a new feature

on Tahoes. I thought that Suburbans were the only ones with ps assist for brakes?

 

Thanks

Joe

[sperry]

HydroBoost! On several trucks 03~05.

 

There's a campaign to recall some due to a seal problem also...

 

F/CMVSS Noncompliance - Brake Hydro-Boost Relief Valve Seal Fracture #04004A - (Jun 18, 2004)

 

04004A - Brake Hydro-Boost Relief Valve Seal Fracture

 

2003-2004 Cadillac Escalade, Escalade EXT, Escalade ESV

 

2003-2004 Chevrolet Silverado, Avalanche, Suburban, Express

 

2004 Chevrolet Tahoe

 

2003-2004 GMC Sierra, Yukon, Yukon XL, Savana

 

2003-2004 HUMMER H2

 

(If a truck's VIN serial number series was on this list, they would have contacted the owner(s) already...)

[joechevy2]

Thanks. So Hydroboost was introducted to Tahoe on 03, the year

after I bought my truck. Does anyone have any comments about

what hydroboost does for braking performance? Any real life

experiences?

 

Thanks

Joe

[intruder217]

Hydroboost has been around since the 70's, used on big station wagons, one ton trucks and diesels. Leaked back then too.

[joechevy2]

Hm....sounds kind of problematic.

Thanks for the education

[2001bigblockburban]

had a 94 2500 subrban with it and went thru 2 of em on in about 3 years.....and they arent cheap..... i would stay a way from it..... the new 4 wheel disc are the best thing about the new burbans

[dannyukonxl]

theyre real touchy, i slammed on them a while back and locked up the fronts and probably the backs, really good fro towing, they make a weird whining sound on start up though

[99-2door]

My dad has a 97 K3500 6.5 TD with the hydro-boost,

brother has a 96 c3500 454 with hydro-boost.

 

They both leak.

 

However my dad had a 94 K3500 before that and it never leaked.

 

I love the hydro-boost, as soon as I get around to it I am upgrading my 99 Tahoe to it. The brakes are so much better.

[GM GIMP]

My '02 1500HD has Hydroboost with no leaks or other problems at all. It stops so much better than any Vacuum assist I've ever driven.

[pastorscott]

hey

Whats a sign of a bad hydra boost, I have a 04 burb should I be concerned.

 

 

Scott

[99-2door]

hey

Whats a sign of a bad hydra boost, I have a 04 burb should I be concerned.

 

 

Scott

 

<{POST_SNAPBACK}>

 

 

 

 

All the ones I ahve seen that leak work absolutely fine. You just have to refill the PS fluid pretty often. The fluid makes a mess in the engine compartment below the booster.

Not really a safety issue as long as you keep the fluid filled.