Question about 1997 GMC Jimmy

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SLOW PEDAL TRAVEL,SLOW RETURN,NO AIR IN SYSTEM,2ND MASTERCYLINDER,2ND BOOSTER,NEW CALIPERS,HOSES ONLY 72K ON VECH,GREAT FLUID PRESSURE ALL 4 CORNERS,EVEN BLED ABS MOD,VECH DOES STOP BUT WITH MORE EFFORT THEN NORMAL WTF

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Not much else to replace.Check to make sure no vacuum leaks to booster and that check valve is working properly.

Posted on Aug 19, 2009

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I have been working on power brakes and bleed system and got a good pedal pressure


try bleeding the brakes with the engine running there may still be some air in the system. make sure the master cylinder doesn`t run out of brake fluid.

Sep 03, 2014 | 1979 Chevrolet Camaro

2 Answers

Brake light coming off and on


Check the fluid level. Low brake fluid level can cause the brake light to come on warning you of low fluid. It will be off when the car is level, but as you hit bumps and hit your brakes, the fluid that is in there will slosh around indicatind low fluid. Don't overfill and only use DoT 3 brake fluid. Do not substitute anything else.

Aug 15, 2012 | 1999 Oldsmobile Alero

1 Answer

I put new brake booster an mastercylinder an still have no brakes i thought if i put these new items i would have brakes so what im asking is what elses could be wrong ? MY BRAKES JUST STOP WORKING SO I...


You did bleed out the master cylinder?? You need to check the system for leaks and make sure the front and rear brake pads/shoes are in good condition and that there is no air in any of the calipers or wheel cylinders and that when you press on the brake pedal that the fluid is actually getting to them.
(bleed those too)

Jan 27, 2011 | 1993 Jeep Cherokee Country

1 Answer

Intermitant brake pedal travel issues 98 sable. sometimes braks feel normal and firm then the next time pushing the pedal it seems like the petal travels further than the last time. Has new NAPA master...


Have your vacuum booster checked for leaking, sometimes the one way valve that holds vacuum in the booster fails, It is in the hose going to the booster from motor.

Nov 26, 2010 | 1998 Mercury Sable

2 Answers

2001 Montero brakes. R&R rear rotor, pads & calipers but the brake pedal travel is still very slow to "reset". I am certain my front's need new rotors, pads and possibly calipers due to the...


Disk brakes are automatically self adjusting. If you have too much travel in the pedal, bleed the brakes. Let us know if you need the procedure.

Jul 02, 2017 | 2001 Mitsubishi Montero

1 Answer

1987 Maxima-5 speed is difficult to grt in to gear--How to adjust clutch and check clutch hydraulic fluid?


TO ADJUST PEDAL HEIGHT ADJUST WITH A STOPPER LIMITING THE UPWARD TRAVEL OF THE PEDAL.PEDAL FREE PLAY IS ADJUSTED AT THE MASTERCYLINDER PUSH ROD.IF PUSH ROD IS NON ADJUSTABLE FREE PLAY IS ADJUSTED BY PLACING SHIMS BETWEEN THE MASTERCYLINDER AND THE FIREWALL.ON A FEW MODELS PEDAL FREE PLAY CAN ALSO BE ADJUSTED AT THE OPERATING SLAVE CYLINDER PUSHROD.PUSHRODS ARE AVAILABLE IN THREE LENGTHS FOR THE 310.PEDAL HEIGHT ABOVE FLOOR IS 6.73 - 7.13 INCH PEDAL FREE PLAY IS 0.04 - 0.12 INCH.YOU HAVE CLUTCH FLUID LONG AS YOU SEE BRAKE FLUID IN MASTERCYLINDER.IF MASTERCYLINDER LOW YOU HAVE TO BLEED THE THE CLUTCH MASTERCYLINDER BY LOCATING BLEED SCREW ON SLAVE CYLINDER. REMOVE THE BLEED SCREW DUST CAP.ATTACH A CLEAR TUBE TO THE BLEED SCREW.PUT OTHER END OF CLEAR TUBE IN A CLEAN CONTAINER OF BRAKE FLUID.FILL THE MASTERCYLINDER WITH BRAKE FLUID.OPEN BLEED SCREW 3/4 A TURN.DEPRESS CLUTCH PEDAL QUICKLY.HOLD IT DOWN.HAVE A HELPER TIGHTEN THE BLEED SCREW.ALLOW PEDAL TO RETURN SLOWLY.BLEEDER SCREW TORQUE IS 5 - 6 FT LBS.IF YOU SEE AIR BUBBLES CLEAR BLEED TUBE.REPEAT THE BLEED PROCESS UNTIL YOU SEE NO AIR BUBBLES.DONT LET CLUTCH MASTERCYLINDER GO DRY WHILE BLEEDING.IF SO YOU GOT START BLEEDING PROCESS ALL OVER.HOPE THIS HELP.

Aug 05, 2010 | 1987 Nissan Maxima

1 Answer

Breaks went out 2006 grand caravan. first lost power brakes and pedal was hard to push then went to the floor now goes all the way down and wont build pressure. checked all lines its full of fluid with no...


IT sounds like your brake mastercylinder has went out so what you need to do is get a new mastercylinder and replace that and bleed out the whole brake system after you put on the new mastercylinder.

May 03, 2010 | 2006 Dodge Caravan

1 Answer

No brake power


faulty remanufactured master cylinder. always buy new.... i was trying to nsave some money and it cost me more in the long run

Dec 03, 2008 | 1992 Toyota Pickup

2 Answers

Poor breaks


When you open the breaking system you allow air to enter the break lines and that will cause squishy or weak breaks. You have too "bleed" the air out of the lines now. The way to do this is to have someone help you with this process. They will need to pump the break pedal until the break pedal is stiff and hold pressure on the pedal while you open the valve on the caliper or wheel cylinder(disc or drum) until you have a steady stream of fluid with no air. To ensure you get all the air out you need to start from the passenger rear tire,then driver rear, pass. front, driver front. Make sure you slip one end of a hose over the bleeder valve and the other end in a container so that you don't allow the break fluid to contaminate the new brakes,

Dec 03, 2008 | 1995 Chrysler New Yorker

1 Answer

Front brakes stick on


either your calipers are sticking and need replacing. OR the hoses have failed internally. and need replacing.. very rare but possible the master cylinder is not allowing the fluid to return usually caused bu a booster failing and causing some down travel in the master cylinder. I'd start by raising the front end up. appling hard brake pressure. turn the tire.. then loosen the brake bleeder to check for pressure. if the bleeder sprays fluid and the brakes release forget the calipers. if they are still tight then replace the calipers. pump them up again if they released.. and break the line free at the master cylinder. if they don't release then replace the hoses..

Nov 16, 2008 | 1999 Daewoo Lanos

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