Remove Proportioning Valve? - DodgeTalk : Dodge Car Forums, Dodge Truck Forums and Ram Forums
 
Thread Tools
#1 Old 12-17-2008, 09:29 PM
racer190
Registered User
 
Join Date: Nov 2006
Posts: 92
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
(Thread Starter)
Remove Proportioning Valve?

Would removing the proportioning valve mess up or set off the abs light? My truck is a '92 with rear wheel abs. I know the valve is supposed to limit the amount of brake pressure to the rear wheels, and keep them from locking up during hard stops, but wouldnt the abs do the same thing, even with the valve removed? Under hard stops once the rear wheels start to lock up the abs kicks in and limits brake pressure, and you start to feel it in the pedal correct? There are no abs connectors or anything going to the proportioning valve are there?
racer190 is offline  
Sponsored Links
Advertisement
 
#2 Old 12-18-2008, 12:12 AM
dodgef25
Crazy4x4RT
 
dodgef25's Avatar
 
Join Date: Sep 2007
Location: NM
Posts: 1,341
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Yes it will. It has a sensor to check if there is a pressure difference in between the front and rear. The abs just pulses the brakes to keep the wheel turning a little, it does not limit the pressure. It goes on off on off, when on its full pressure.

So why do you want to remove the proprtioning valve anyway? When safty is a concern you shouldnt remove anything!


My Youtube Videos! ---My Dana 44 SAS
"No truck should ever be lowerd! NEVER"
dodgef25 is offline  
#3 Old 12-18-2008, 07:24 AM
Tsk350
Registered User
 
Join Date: Dec 2005
Posts: 70
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Ya im curious why you would want to remove the valve as well?? If you have to deal with ice and snow you will be in a world of hurt if you remove that valve. I can picture it now you slow down for a red light and the next thing you know is your doing 360s.
Tsk350 is offline  
#4 Old 12-18-2008, 01:37 PM
racer190
Registered User
 
Join Date: Nov 2006
Posts: 92
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
(Thread Starter)
Ive got a feeling mine is bad. Wheels cylinders do no leak and are not stuck, master cylinder is good, and there are no rear brakes. Its got new lines and fluid also. They want almost 300 bucks for one from mopar.
racer190 is offline  
#5 Old 12-19-2008, 04:26 PM
Tsk350
Registered User
 
Join Date: Dec 2005
Posts: 70
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Well then a better option than runnin without one is to go to a wrecking yard and grab one there. Hell grab two or three.
Tsk350 is offline  
#6 Old 12-19-2008, 04:52 PM
moe7404
moe7404
 
Join Date: May 2008
Location: wichita ks
Posts: 1,399
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
moe in wichita ks
years ago mopar had an adjustable proportioning valve. a lot of non-mopart people used on street rods ect. but i dont know if they still make it. iam sure some one will know. happy hunting
moe7404 is offline  
#7 Old 12-19-2008, 05:54 PM
dodgef25
Crazy4x4RT
 
dodgef25's Avatar
 
Join Date: Sep 2007
Location: NM
Posts: 1,341
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Summit racing does have an adjustable one but get a dak. spacific one would be best. Jukyard. or ebay.


My Youtube Videos! ---My Dana 44 SAS
"No truck should ever be lowerd! NEVER"
dodgef25 is offline  
#8 Old 12-19-2008, 10:15 PM
kprey73
Registered User
 
kprey73's Avatar
 
Join Date: Jan 2007
Posts: 98
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
do you get good fluid flow from the rear brakes when you blead them?

guessing that the Proportional valve is probly stuck
Try bleeding the RR, LF, LR, RF do this a couple times - push the pedal easy for this, you should hear and feel a light click in the brake pedal ( this is the valve returning to the center ). this should bring the proportional valve back to the center, you still might have to bleed the brakes more, start from the farthest away from the master and work to it.....

when you are bleeding the brakes are you bleeding the ABS valve? are the rear brakes adjusted correctly?

there are a lot of possibilities but I bet the Proportional valve is stuck once the valve is returned to center you will have all kinds of rear brakes...

hope this helps...

1992 Dakota LE
5.2L 2 Wd Auto
Club Cab
K+N Filter
Silvania Silverstars
Pioneer CD/MP3
XL Trans Cooler
Softball Size Hail Damage


kprey73 is offline  
#9 Old 12-19-2008, 10:57 PM
moe7404
moe7404
 
Join Date: May 2008
Location: wichita ks
Posts: 1,399
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
moe in wichita ks
is that the valve that has a switch in the middle?
moe7404 is offline  
#10 Old 12-20-2008, 02:25 AM
dodgef25
Crazy4x4RT
 
dodgef25's Avatar
 
Join Date: Sep 2007
Location: NM
Posts: 1,341
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by moe7404 View Post
moe in wichita ks
is that the valve that has a switch in the middle?
Yes it is!


My Youtube Videos! ---My Dana 44 SAS
"No truck should ever be lowerd! NEVER"
dodgef25 is offline  
#11 Old 12-20-2008, 07:14 PM
racer190
Registered User
 
Join Date: Nov 2006
Posts: 92
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
(Thread Starter)
Im gonna grab one from the boneyard off a truck with a little lower mileage, i mean come on you cant blame it for not working as my truck has 242,000 on it.
racer190 is offline  
#12 Old 12-20-2008, 07:32 PM
moe7404
moe7404
 
Join Date: May 2008
Location: wichita ks
Posts: 1,399
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
moe in wichita ks
i have seen cross sectional views in service manuals. can they be taken apart and cleaned up? i have never had trouble from one . but i have never put that many miles on one. i think 1967was the first year for them, that was the first year the gov required dual master cyls i think. but it seams to me that each car/truck would need a different bias. 1967 also was the first year for a collapseable steering column, one saved my dads life in a 1967 dodge charger. strange what one can remember if your brain gets joged.
moe7404 is offline  
#13 Old 02-24-2009, 07:51 PM
sloggerIII
Registered User
 
Join Date: May 2008
Posts: 17
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
haveing the same problem with my brakes except they were fine untill the front brake line brust and then had to change the other front one because got alittle angry when it would not come free but now have no pedal even after bleeding all four wheels about 30 times each, fluid comes out right away when bleed even brke loose all lines to and from master still no pedal, also before the blow out everything worked just fine

Last edited by sloggerIII; 02-24-2009 at 08:43 PM.
sloggerIII is offline  
#14 Old 02-24-2009, 10:03 PM
moe7404
moe7404
 
Join Date: May 2008
Location: wichita ks
Posts: 1,399
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
one way to bleed a brake system,if you dont have a power bleeder. is to use two guys, one in the drivers seat one under the truck. be sure and put anti-sieze compound on ALL the threads you take apart, in 50k mile you will be glad you did. the main thing to remember is that the guy under the truck is the boss, and NEVER let the master cyl get dry. the first thing is have the pumper push on the pedel at the same time the bleeder is open, this pushes air out. when the pedel gets to the bottom the pumper says "bottom" at that the bleeder guy quickly closes the bleeder. rule 2 NEVER let the pedel come up with the bleeder valve open, cause that will suck air in to the system. remember that this will have to be done over, over, over, over, you will get tired, but keep it up. some times they will bleed by just opening the valve, and wait it might just come flowing out, i have had it happen when i was alone. but NEVER let the master cyl get dry
moe7404 is offline  
#15 Old 02-25-2009, 08:53 AM
DakotaChaos
Registered User
 
DakotaChaos's Avatar
 
Join Date: Dec 2007
Posts: 487
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
im having the same problem. i had zero rear brakes, then i replaced all internals and bled them. for the first 15 miles give or take i had rear brakes. now a week or two later i have none again. they're adjusted right so maybe i should do the same.

93 Dodge Dakota - 2000 5.9, 4x4, flowmaster 44 series dumped infront of the rear wheels, 4 130w 4x6 kc long range lights on lightbar on a roll bar from a jeep commanche, 2 hella 100w 6in round lights on the grill guard, custom aluminum switch panel, black leather headliner and sun visors, cb radio w/ 2 5ft whips, grey leather seats, sylvania silverstars, navigator true white fog lights, Cragar soft 8's, autolite 3923's, 98 intrepid electric fans w/flexilite fan controller, 3in body lift and reindexed torsion keys, cranked torsions, add a leaf for a 2500, 2 cone style washable air filters, cut and tucked rear bumper,grill guard, 4 welded D rings, Mopar performance computer, 33x12.5x15 procomp mud radials.


2 12" kicker cvrs in custom ported box 4ft^3 tuned to 32 hz, rockford 600.1bd mono amp, crossfire 400w 4channel amp, alpine type-s 4" round in front, 5x7 oval in back, jvc 720 headunit w/ipod adapter, 4g rockford power wire.



to come- a new owner. FOR SALE!!! PM

1996 Dodge Ram 4x4. nothing cool yet. but its bound to happen.
DakotaChaos is offline  
#16 Old 02-27-2009, 03:32 PM
sloggerIII
Registered User
 
Join Date: May 2008
Posts: 17
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I gave up took my 1995 dakota into the shop found both front cal;ipers were bad and both drums were wore down to nothting and rear axil seals were leaking on to the drum pads all replaced $613.00 down the drain on a truck that i paid only $800.00 for two weeks ago nice huh Im going to the guys house and grap him by the back of the head and kick him in the ass!
sloggerIII is offline  
#17 Old 02-27-2009, 07:02 PM
moe7404
moe7404
 
Join Date: May 2008
Location: wichita ks
Posts: 1,399
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
found some good brake info.
http://www.rx7.org/Robinette/brakelines.htm
moe7404 is offline  
Closed Thread

Quick Reply
Message:
Options

Register Now

In order to be able to use most of our features, you must first register.
Please enter your desired User Name, your Email Address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
The registration process requires you to activate your membership by following a link in an E-Mail that will be sent to you immediately upon completing this form. You must enter a valid email address or you will not receive this activation code and you will NOT be registered. Your E-Mail address is NOT publicly available to anyone as policy.

AOL E-MAIL USERS: Please click HERE for important info pertaining to your e-mail address.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
User Tag List

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page


Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Premium Big valve heads and Premium stock valve heads JarZ Inertia Motorsports 1 09-08-2008 03:34 PM
Gen 3 Hemi Valve Spring Problem gator57 3G Dodge RAM - General Talk 7 08-27-2008 01:27 AM
How to I troubleshoot what sounds like a valve tap New_Climber 2G Dodge RAM - General Talk 3 11-18-2006 08:43 AM
6.1 Cam Install - Final Verdict? BVest65 3G Dodge Ram Performance Talk 19 01-18-2006 04:42 AM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

 
For the best viewing experience please update your browser to Google Chrome