Question about 1998 GMC Jimmy

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I have 1998 gmc envoy and am trying to change rear brakes. i am trying to put the piston back to its original position but it wont budge with the clamp. Do i need to bleed my breaks and if so how do i do that?

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No do not need to bleed brake ,the piston has to screw in clockwise to go back in

Posted on Apr 30, 2010


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don't need any special tools, standard sockets sets, "C" clams is a must unless your a He-Man and wrench set, plyer or needle nose will do. I assumed being 2003 your rotor never have been turn and i recommend every time you change your bakes is good idea to have your rotor turn. reason is it will make your pad last lot longer, removed any vibration and better even wear on the pad and eliminate any squealing although is not necessary to do so. make sure you get extra break fluid to bleed the brakes. get your self 5 feet long smallest vacum rubber hoses and a glass jar to bleed your brake fluid in. the rubber vacum hose you going to use to fit on to the bleeding nipple and run the other end of line to your the glass jar to save the brake fluid when you bleed the brakes. when removing caliper, check inspect make sure the rubber seals around your piston look good and not crack or deteriorated. before applying new pad make sure you open the bleed valve to reduce the pressure by turning the bleed nipple counter clockwise and leave it open attach that rubber hoses to the nipple because you going to press on the piston back into it housing with the "C" clamp in order for new pad to fit. becareful not to damage the rubber seals around the piston. its going to take lots of effort to push that piston back in so be a bare with it if needs to. once the pad is back in make sure you keep the reservoir full with brake fluid and then bleed the brake. two people is a good idea to do brake. one will do the pumping the brake and holding it down and other will bleed the nipple. I bleed it 2-3 time will do the job. good luck!

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How to change brakes on 2004 gmc envoy. Is it pretty much the same process as most american made cars?

yes it is. caliper are dual piston so make sure you collapse both pistons at the same time

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My 2002 GMC Envoy is stuck in the neutral position and will not budge. I was backing into a parking space and my gear shifted to neutral and stayed in that gear.

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