97 F250 brake issue

Squint1987 · #1 (**permalink**) 09-14-2007, 09:49 AM

Last week I noticed an large and immediate decrease in the stopping power in my truck. There were no obvious leaks in the system when I went over it. The red brake light would come on somtimes, especially when manuvering in a parking lot when i'm on and off the pedal alot. Seems that there is also now power in them when I first start the truck.

I took it to the shop where they said it was a bad master cylinder resivour. There was only a marginal improvement in performance and the light still comes on and they claim they can't find the problem.

RABS gone bad?

**SMKSTAX** · #2 (**permalink**) 09-14-2007, 03:03 PM

Here's a bump for ya.

***gbear*** · #3 (**permalink**) 09-14-2007, 04:38 PM

Have you checked the vacuum system and brake booster?
Have you noticed any vacuum problems with the ac or heater?
If so you could have a leak or pump problem.
Are the brakes pulling to either side when you try to stop?

Jim

Squint1987 · #4 (**permalink**) 09-16-2007, 11:27 AM

The ac and heat are fine and it doesn't pull in any direction

ono_55 · #5 (**permalink**) 09-18-2007, 08:12 AM

Check your vacuum pump might be getting weak. Should have around 27lbs at idle.

cowboymafia · #6 (**permalink**) 09-18-2007, 08:23 AM

i gotta 97 an my breaks arent that good an they pull

***gbear*** · #7 (**permalink**) 09-18-2007, 06:16 PM

If they are pulling you probably need to check the pads and rotors, and make sure you don't have a sticking pistons in the calipers. Could just be time for a brake job, depending on there condition. This is also a good time to repack the front wheel bearings.

Jim

Squint1987 · #8 (**permalink**) 10-03-2007, 03:47 PM

The pump is pulling vacuum, though not sure how much, easy to pull finger off. Its pulsating and there is a squeeky howl coming out of the vac tube. This normal?

ono_55 · #9 (**permalink**) 10-04-2007, 06:10 AM

Quote:

Originally Posted by Squint1987

The pump is pulling vacuum, though not sure how much, easy to pull finger off. Its pulsating and there is a squeeky howl coming out of the vac tube. This normal?

Sounds like the pump is bad, I would go to the nearest parts house and see if they would rent you a vac. gauge or you could buy one, they are handy to have around.

Hope this helps

Squint1987 · #10 (**permalink**) 10-04-2007, 06:19 AM

I plan on picking one up soon as most of my tools are at home. I hate not being able to work on things much myself in college.

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Remove Advertisements Sponsored Links
Powerstroke.org Advertisement