Question about 2003 Pontiac Grand Prix

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How to replace rear brake line

I need to replace the rear brake line. Can I get an exact fit replacement line set, or do I have to get a coil of tubing and flare tool?

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You can check with the GM dealer, but I doubt they will have an exact replacement. Most people use sections of tubing with the ends already on and connectors. You would probably need a tubing bender.

Posted on Feb 10, 2014

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Posted on Jan 02, 2017

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SOURCE: How do you replace brakes on 1999 Pontiac Sunfire?

The engine size don't matter except when you order the parts. First you will want to chock the rear tires. This is a front wheel drive, when you jack the front, park wont work. you should also set the parking brake.
You will want a metric socket set and rachet, and a fairly large flat head screw driver.
Remove the wheel.
When you look at the brakes, you should see 2 bolts holding them on, If they have a star shape that looks like a screw driver might fit in it, it is a torx bit, you will need to replace the wheel and go get one. The guy at the parts store should be able to tell you what size.
I'm pretty sure it is going to be a regular hex nut, probably 12 or 13mm.
You can loosen them, but don't remove them yet.

First you need to depress your caliper. This can be done a couple ways.
I just insert a screw driver between the pad and the rotor(the shiny thing that the pads make contact with.) Carefully pry the inner pad slowly away from the rotor. Don't scratch the rotor, you can dig into the pad all you want, your putting new ones on.
Once the inner pad is all the way in, then you can remove the bolts and the caliper will slide out.
Remove the old pads and replace with the new.
Put the caliper back on, make sure you get the bolts tight.
Do the other wheel the same way.
The other way to get the caliper pushed in, by the way.
Remove the bolts, remove the caliper from the rotor, Use a large "c" clamp to depress the cylinder.

P.S. Do not under any circumstances remove your brake lines.

When you are finished with brakes and have tires replaced....

Caution!!! Before you start your car, pump your brakes a few times. Check your brake fluid. You more than likely wont need any, but you should always check it.
Also, do not add brake fluid before replacing pads, the level is going to be higher with new pads.

Back brakes will be similar if it is disc, if it is drum, do your self a favor and have some one else do it or get a service manual. I could walk you thru it, but you need more tools and you have to adjust them....
Better to pay $100 or so and have it done right.

Posted on Feb 19, 2010

duane_wong
  • 6826 Answers

SOURCE: 1999 sunfire replaced left rear

There is probably an air bubble in there.
Get a partner to push on the pedal as you simultaneously open up the bleeder screw.

One shouldn't have to use the abs brake bleeding procedure if no air got into the abs braking master cylinder area.

Keep trying to manually bleed the air out of the brake line. May have to tilt the car backwards to get the fluid to drip out by itself,
although air in the line can sometimes be difficult to get out after changing the rear brake line.

Good luck on this repair.

Posted on Sep 24, 2010

  • 3911 Answers

SOURCE: We are trying replace rear

pads go over a rotor, you can buy a tool to spread the pads meaning pushing the caliper piston back. if the rotor is pitted or has a lip around the outside it needs to be refaced which is done at a machine shop. i myself use a big old C clamp instead of buying a tool. be careful not to put sideways pressure on the piston or you will be buying a new caliper. i take the cap off the master cylinder when i am pushing fluid out of the caliper.

shoes go inside a drum, you get the drum turned at a machine shop, and you move the adjuster wheel down to the minimum and slowly back it out to where the drum just does not contact the shoes when put on. the shoes will settle in correctly when you push on the brake pedal so you may have to do this adjustment a few times. in the olden days the adjuster was accessible from the inside through a slot in the backing plate and you used a special adjuster or a bent screwdriver to adjust the shoes out.

good luck

Posted on May 24, 2011

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2. Are the brake hoses cracked? If they are might as well replace them at the same time.
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What you need to do is take off the original line. If you check on the Web, you may find some kits for a complete system, but an individual line is often difficult to ship.

There are different size fittings on the ends of brake lines. In some cases, the Universal lines may work, but the end fittings must match your vehicle. This is why taking the old line with you is important.

Some mechanics get coils of brake lines and bend and fit the ends themselves. It takes a few specialized hand tools to accomplish this. They are not terribly expensive, but for 1 line it is not worth it and it takes some skill to properly install the fittings on the line.

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A good brake shop would be your best bet. Call ahead and ask if they can make a line to replace what you have. It should not take but a 1/2 hour or so to swap out what you have, then some time to bleed the brakes.

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