Question about 1994 Cadillac DeVille

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I have 1994 cadillac deville that is losing brake fluid from a left rear propotioning valve. Is this replaceable or repairable and where do i find parts

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If the proportioning valve is leaking, certainly replace it. May find parts at dealer, or aftermarket source or even a salvage yard.

I checked Autozone but did not find this part listed, per se.




Posted on Jul 03, 2010

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Hi I am from Norway and have replaced my proportion valve for rear brakes on my Corolla 1996 1,3 xli wagon.I am wondering how I can bleed off air and flush back to new brake fluid.Do I need to connect a...


None of those things . Just bleed the brakes normally starting from the longest line and ending with the shortest. The proportioning valve will always let brake fluid through, just not enough to lock up the rear brakes until you press heavy on the pedal . It is there so that full pressure to the large front brakes is reduce in proportion to the smaller rear brakes.

Jan 23, 2014 | 1996 Toyota Corolla

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1994 Cadillac Deville has been sitting in a garge for ten. What will I need to look out for when first starting after ten years


Replace all fluids (including fuel) - coolant (may want to flush system), engine oil, drain and replace transmission fluid and filter, drain and replace rear end fluid. Also change fuel and oil filters. (may be a filter at the end of the fuel line going into the carburetor as well0 If fuel was left in the system - it may have evaporated and clogged things like your carburetor jets. There may be gum (varnish) in your carburetor float bowls. Hopefully your valve seals are not dried out (oil will leak into the cylinders if they are cracked) - or any other rubber parts for that matter (hoses- rda - heater - power steering). Your brake fluid absorbs water over time and with need to be drained and replaced - bleed all lines. Be sure that all lines are not rusted and that your master cylinder and brake cylinders function. Lots of thing =s to check - I hope I covered most, if not all. Let me know how you make out getting it going. Thanks. Good Luck :) !

Jan 03, 2011 | 1994 Cadillac DeVille

1 Answer

Where is the bleeder valve on the rear of 87 Cadillac Deville


If you are referring to the brake bleeder valve, it is located on the wheel cylinders on the backing plate of the brakes for the drum brakes. Follow the brake lines to this bleeder valve. However, it might be rusty and must be soaked in penetrating oil or brake fluid before trying to turn it.

If you are referring to the air ride suspension, look at the rear axle area and look for a lever that controls the 'air bleed' for the air shocks. Follow the small (in diameter) plastic air lines from either of the rear shocks to the bleeder valve.

Jun 15, 2010 | 1987 Cadillac DeVille

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What is the color codes for the radio of a 1994 cadillac sedan deville? the ends have been cut, so cant use a harness


from the factory service manual radio diagrams.

1994 Cadillac Deville Sedan Car Radio Wiring Guide

Car Radio Battery Constant 12v+ Wire: Orange
Car Radio Accessory Switched 12v+ Wire: Yellow
Car Radio Ground Wire: Black
Car Radio Illumination Wire: Gray
Car Stereo Dimmer Wire: Brown
Car Stereo Antenna Trigger Wire: Pink
Car Audio Front Speakers Size: 4′ x 6′
Car Audio Front Speakers Location: Dash
Left Front Speaker Positive Wire (+): Tan
Left Front Speaker Negative Wire (-): Gray
Right Front Speaker Positive Wire (+): Light Green
Right Front Speaker Negative Wire (-): Dark Green
Car Audio Rear Speakers Size: 6′ x 9′
Car Audio Rear Speakers Location: Rear Deck
Left Rear Speaker Positive Wire (+): Brown
Left Rear Speaker Negative Wire (-): Yellow
Right Rear Speaker Positive Wire (+): Dark Blue
Right Rear Speaker Negative Wire (-): Light Blue

Apr 07, 2010 | 1994 Cadillac DeVille

1 Answer

My rear brakes are locking up way before the fronts. I have replaced the master cylnder and propotioning valves, problem is still there. would the 4-way connector for the rear brakes do this if it were bad...


The rear brakes engage when the power or pressure going through the lines are equal. Normally that occurs when the pads and or shoes touch the rotors and or the drums, then the brakes work smoothly. A clog or air (which is more compressible than fluid) makes the balancing a problem and can cause one or more wheels brake differently than the others.

Dec 31, 2009 | 2005 Nissan Altima

1 Answer

Oil missing out of master cylinder oil on rear line going to back brake


You have a raptured brake line. Mostly from rust. Everytime you apply pressure to the brake pedal that is why its taking brake fluid. Keep adding brake fluid to your master cylinder-don't let it go dry or you will lose all of your back brakes if you didn't already. You have to have your brake lines replaced and have your brakes bled. Should be about a $100 job at a good brake shop.

Oct 17, 2009 | 1997 Cadillac DeVille

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Does anyone have a diagram of the brake lines going from the front to the rear brakes?


No,but the rear brakes may,or may not be joined in threar of the car.They will go all the way up to the proportioning valve,to the master cylinder.

Oct 12, 2009 | 1994 Cadillac DeVille

1 Answer

C1243 - BPMV Pump Motor Stalled1999 cadillac deville


BPMV = Brake Pressure Modulator Valve.

Part of the anti-lock brakes and traction control system.
The BPMV is located at the left hand front corner of the engine compartment, attached to the EBTCM (electronic brake control module).

CAUTION: For safety reasons, the brake pressure modulator valve assembly must not be repaired, the complete unit must be replaced. With the exception of the EBTCM ,no screws on the brake pressure modulator valve assembly may be loosened. If screws are loosened, it will not be possible to get the brake circuits leak-tight and personal injury may result.

Sep 24, 2009 | 1999 Cadillac DeVille

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