my power steering cuts in and out sometimes... it will be working, then i hit the brakes and go to turn and all of a sudden im cranking on a 55 chevy... is there any chance i broke something cheap?

 

whats it on?...does it have hydroboost?

 

its an 02 silverado 4.8... i have no idea what hydroboost is

 

I haven't seen a hydroboost on anything smaller than 1ton......

 

im pretty sure there is a sensor that shuts off the p/s above a certain speed maybe that is faulty

 

Hydroboost is a is a brake system that uses power steering pump pressure to provide power to the brake system. The easiest way to tell is to look at the brake master cylinder. If it does not have the big drum vacuum boost unit between the firewall and the master cylinder, but instead there is a unit there that has pressure hoses running to the power steering pump then you have hydroboost .

Cheers

 

i dont have hydroboost, and i'm pretty sure myp/s pump is cutting in and out, so i guess im gona have to fix that... thanks for the help

 

I had a 04 Avalanche 1500 that had it. I couldn't tell that it was any better than the vacuum type.

 

Ok,no hydroboost..yes,that pretty much sums it up to a bad pump...a tricky,but not impossible repair

 

O yea.. Changing it isn't fun! make sure you get a good pully puller. One without stripped threads on the bolt! Have some extra power steering fluid too and its really easy until you have to remove the pump. The angle has to be exact to get it in AND out. Only part that will **** you off. Promise