88 Dakota Brake problems
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88 Dakota Brake problems
I have a 88 Dakota 2 wheel drive and I can't get bake fluid to the calipers in the front and the drums bleeders in the back. Was told it was the propositioning valve. Am unsure of the issue and I know nothing about the valve. Could use some help. Thanks
Champion
Joined: Jan 2013
Posts: 4,737
Likes: 374
From: Northwest Louisiana
Could be, but on my 1988, the rears were because the hose had gone bad, and the rear cylinders had rusted up.
I fixed that with a new flex hose (frame to rear axle) and new wheel cylinders.
On the front (now, let me hasten, these problems were some of the reason why I was able to pick it up for what the boneyard was going to pay for it!) one side had a bad hose that had flaked out and was blocking flow.
(Yes, I did replace both of them.)
I'd worry about them before I did the proportioning valve assembly, either one.
Edit: I've also changed the master cylinder. I did that pre-emptively, while doing the 4 wheel brakes, but it turns out that IT was dying. Thankfully I had also ordered the booster ... got it all in one swell foop!
RwP
I fixed that with a new flex hose (frame to rear axle) and new wheel cylinders.
On the front (now, let me hasten, these problems were some of the reason why I was able to pick it up for what the boneyard was going to pay for it!) one side had a bad hose that had flaked out and was blocking flow.
(Yes, I did replace both of them.)
I'd worry about them before I did the proportioning valve assembly, either one.
Edit: I've also changed the master cylinder. I did that pre-emptively, while doing the 4 wheel brakes, but it turns out that IT was dying. Thankfully I had also ordered the booster ... got it all in one swell foop!
RwP
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Joined: Mar 2012
Posts: 752
Likes: 2
From: Southeastern Virginia
Were you trying to use vacuum to pull fluid to the wheels, or did you pump the brake pedal and attempt to bleed under pressure? Have you replaced any brake components recently, i.e. the master cylinder?
Leave one (or both) of the front bleeder screws open for several hours, watching from time to time, and see if they eventually drip fluid. As for the rear, check to see if you have a hydraulic valve mounted to the frame, on the driver's side, above and behind the rear axle. If so, it could be causing a problem with fluid getting to the rear. If it has a bleeder screw, try bleeding from there. You can also disconnect the line going to the valve and see if fluid is reaching there.
Leave one (or both) of the front bleeder screws open for several hours, watching from time to time, and see if they eventually drip fluid. As for the rear, check to see if you have a hydraulic valve mounted to the frame, on the driver's side, above and behind the rear axle. If so, it could be causing a problem with fluid getting to the rear. If it has a bleeder screw, try bleeding from there. You can also disconnect the line going to the valve and see if fluid is reaching there.