Question about 1993 Cadillac Fleetwood

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I am having trouble getting to rear brake lines to remove and replace. The issue I am having is that the lines go into the frame in front of rear dif. which is behind the body's back seat. there is very little room to get a line wrench to turn. On the otherside of the same location the line is rubber down to the rear dif. then metal line splits to each break. what is the best way to remove one line from the frame without breaking the other? does the junktion box come out?

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Posted on Jan 02, 2017

duane_wong
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check the master cylinder. It may need to be replaced.. When replacing, make sure to bench bleed it as not doing so would void the warranty.

Posted on Jul 02, 2010

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1 Answer

How do i remove the whole diff and IRS suspension in au falcon intact


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I have a 1993 Toyota pickup truck and I am having a brake problem. I have replaced the brake pads, calipers, brake booster, lower lines, checked for vaccum, master cylinder and I still do not have brakes.


Hello, do you have brake in the front or in the back or both? Have you bled the air out of the braking system? You need to think this through instead of RR--remove and replace. The hydraulic brake are the most reliable system that the brake shoes or pads could be down to the metal and it would still stop the vehicle. You lose a brake line or brakes on one wheel, and it will still stop the vehicle with two wheel cylinder or pads working. The brake system is diagonal that is; left front/right rear and right front/left rear. Therefore, if the vehicle loses any one braking system the other will work.


Now, on your Toyota Truck there is load compensator valve hook to the frame with the two rear wheel line going into this valve. The a lever the attached to the rear differential. The way it suppose to work is when a load in placed in the bed of the truck. The load dynamic will position the differential by the load pushing down on the bed. This causes the load lever arm to change position and slightly closing the valve; in turn, limits the brake pressure on the rear wheels.



I don't know why Toyota Motors installed this load compensator valve. It more trouble than what it worth. I have removed these load valves, and took it apart, and plug the valve piston hole with a brass plug. This lets the brake pressure flow evenly through out the braking system.



Remember, you need to bleed the braking system of air and I mean all the air bubbles for the braking system could operate appropriately to manufacture specification. GB...stewbison

Aug 30, 2011 | 1993 Toyota Pickup

1 Answer

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It sounds as though where the rear brake lines meet up with the master cylinder; there is probably a piece of dirt in the lines that could be blocking any fluid from getting in. To test this, I would remove the brake lines from the master cylinder and then remove the master cylinder. Once done, have the master cylinder cleaned inside out. This will remove the dirt particles that are clogging your lines.

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I replaced my master cylinder and installed new rear brake lines as well as wheel cylinders.Now there is no way i can bleed all the air out of the rear brakes.The front brakes are great,but no way i can...


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I have a 1991 GMC Sonoma 2Wd with a 4.3 V6. I'm having trouble with the rear brakes still spinning. I just replaced all the brake parts in the back, wheel cylinders, drums, springs, etc. I replaced a line...


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1 Answer

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1 Answer

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