Brake load sensor?
#1
Registered User
Thread Starter
Join Date: Mar 2004
Location: near Boston, MA
Posts: 39
Likes: 0
Received 0 Likes
on
0 Posts
Brake load sensor?
Was replacing rear brakes and shocks last weekend when I noticed a small lever attached from the axel to a valve. Lokks like some sort of load sensor for the brakes. It is on the drivers side rear axle. Looked in my manual and Haynes book and cannot find. Anyone know what it is? Thanks
#2
Registered User
It's the brake pressure proportioning valve.
It will let more pressure get to the rear brakes when you have a load in the bed.
I used a turnbuckle and a locknut on the pushrod of mine. Adjusted it to be a tad longer, wow brakes are much better!
(Problem was grave with my DTT 89%- on slippery surfaces empy the rears would spin while the fronts were locked)
HTH
AlpineRAM
PS- Service manual from TechAuthority- best US$99 I ever spent on my truck
It will let more pressure get to the rear brakes when you have a load in the bed.
I used a turnbuckle and a locknut on the pushrod of mine. Adjusted it to be a tad longer, wow brakes are much better!
(Problem was grave with my DTT 89%- on slippery surfaces empy the rears would spin while the fronts were locked)
HTH
AlpineRAM
PS- Service manual from TechAuthority- best US$99 I ever spent on my truck
#5
Registered User
Oopsie, soory no pic at the moment-(I should really wash my truck- at the moment I could only take a bic and tell you somewhere behind the mud- right beneath the grime etc ) but it's very simple. Look at the vertical rod from the axle to the proportioning valve. Take a turnbuckle and adjust it to the center of its max travel. Cut off the hooks of hte turnbuckle. Now you've got the part that will replace a part of the rod. On one side of the turnbuckle there's a right handed thread. Take the bolt out of hte turnbuckle, take a nut and thread it on, thread the bolt back in. Put the turnbuckle to the rod, mark he ends and cut a segment with the length of hte turnbuckle out and weld turnbuckle in. To adjust for more braking power just turn the turnbuckle so that it lengthens. Tighten locknut before driving. (some drops of locktite blue aren't a bad idea)
HTH
AlpineRAM
HTH
AlpineRAM
#6
Registered User
Join Date: Oct 2003
Location: pittsburgh pa
Posts: 70
Likes: 0
Received 0 Likes
on
0 Posts
i also adjusted mine for a little stronger when empty braking. it was at that point i realized my rear abs is inoperative! it did do the job- but now i have to watch my butt when unloaded and im trying to stop fast on slick/wet roads. i never knew the rwal wasnt working because it never turned on any warning or brake light- so be sure how yours stops before you drive with it.
#7
Registered User
Join Date: Apr 2004
Location: ontario,canada
Posts: 22
Likes: 0
Received 0 Likes
on
0 Posts
my 98 has this valve but i noticed the other day that it is unhooked.Could be the reason my truck seems to only have front brakes lately the rod is missing if anyone could post a pick and or measurments i could make my own any help would be great
ps: picked this truck up in april and i am in love with it first cummins but not the last
ps: picked this truck up in april and i am in love with it first cummins but not the last
Trending Topics
#8
Registered User
If the lever of the valve has been ziptied to it's upmost position the rears will get the maximum available pressure ( the valve thinks that your truck squats from the load in the bed)
If it just hangs down it assumes your rear wheels are in the air
Maybe try to ziptie it upwards and check if your RWAL works on a slippery surface with muuuch space to be safe if it doesn't
AlpineRAM
If it just hangs down it assumes your rear wheels are in the air
Maybe try to ziptie it upwards and check if your RWAL works on a slippery surface with muuuch space to be safe if it doesn't
AlpineRAM
Thread
Thread Starter
Forum
Replies
Last Post
arroyojim
12 Valve Engine and Drivetrain
1
05-10-2011 05:58 PM
Firstgenfanatic
1st Gen. Ram - All Topics
20
04-10-2008 12:24 PM
carwash
3rd Gen High Performance and Accessories (5.9L Only)
7
09-12-2007 11:39 AM
JC19
3rd Generation Ram - Non Drivetrain - All Years
4
01-14-2005 06:21 PM