Question about 2003 Pontiac Grand Prix

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2003pontiac grand prix how compress the piston by compressing or by turn in ?

How to compress the piston

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  • Bogdan Odwazny
    Bogdan Odwazny Jan 23, 2013

    I ask how to compress the piston, if compress will damage piston no good ,by turning to bring down to level with caliper then you can put the pads .

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  • Pontiac Master
  • 14,036 Answers

You need oil cylinder bore with clean engine oil.you need a piston ring compressor make sure ring gaps and oil control ring gap correct make sure look at top piston should have a knotch on top so piston be facing right direction.when install pistons in cylinder block make sure piston rods studs has piece hose on threads to keep from damaging cylinder bore and crankshaft journals.make sure cylinder bore top ridge been removed and cylinder been honed out or bored out if you try install new piston with rings the rings will break if you have not remove top ridge.when you install new pistons rings in cylinder bore need oil soak piston ring compressor and cylinder bore. with piston ring compressor around piston rings and piston you tighten the compressor to compress piston rings take wood handle with hammer tap piston with wood handle piston will slowly goes into cylinder bore you have to install pistons at top of cylinder block.

Posted on Jan 20, 2013

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  • Contributor
  • 5 Answers

What you need to do is lift the car take out the wheel where crank shaft is,
also know as the harmonic balancer

Posted on Jan 20, 2013

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  • Contributor
  • 34 Answers

What is it you are talking about and trying to do

Posted on Jan 20, 2013

6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: I cannot compress the rear brake caliper piston to install new pa

In the back the caliper pistons actually have to be turned... you can either do it with something that can fit in the two v-shaped notches, or you can buy a tool from Autozone, etc. that will fit on a 3/8" drive ratchet to turn the piston back in.

I did this myself for the first time about 4 weeks ago. Confused me until I asked an Autozone employee.

Posted on Mar 27, 2009

SOURCE: 2004 Grand Prix(rear brakes)

follow the STANDARD OPERATION PROCEDURE of the car brand.thichnes and circumference database on the scanner result print out data

Posted on May 10, 2009

  • 599 Answers

SOURCE: I can't compress the piston when putting new rear brake pads on a 2006 pontiac G6. It actually bent my C-Clamp. Is there something I am missing to release them?

the rear pistons on this car screw into the caliper,you need a special tool, which most parts store carry,if you need more help get back to me and we'll go from there. please rate my fix as i strive to be the best,problems get back to me Thanks Ray

Posted on May 19, 2009

  • 1596 Answers

SOURCE: how do you compress caliper on 2005 gran prix rear

There is a Special tool for this But I Sometimes Use Channel Locks .
You have to "TURN IT" CLOCKWISE To COLLAPS IT Thats IT !
Good Luck and PLEASE Remember to "RATE" Me

Posted on Oct 04, 2009

dmftrucker
  • 1922 Answers

SOURCE: Are the rear brake caliper pistons on a 1991

are they smooth faced? if so a C-Clamp/if they have some indentations in the face you need to screw these in with a homemade tool or for about $15 get a multi-purpose tool for many different vehichle brake piston types

Posted on Nov 10, 2009

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1 Answer

I have a 1998 Grand prix. I replaced the starter and the battery. When I go to start it I can hear the starter engaging but the engine won't turn over completely.


Sound like an internal engine part broke , like a crank shaft or pistons connecting rod. If it is a connecting rod , it is wedging against the cylinder wall or piston . I would pull all the plugs out , have someone else turn it over , and listen . You can also get a compression gauge and screw it in each plug and see if you have any compression ? You may have to rebuild it , or take it apart to see if you can rebuild it ? Call a junk yard and you maybe able to get a good used motor too . Good luck , Hope this helps!!!!!!!!

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1. Raise and support the vehicle.
2. Remove the front wheels with a 19mm tire socket or equivalant.
3. Locate the brake caliper and remove the two retaining bolts from the caliper(they are iether a allen wrench or torx style bolt)
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5. Remove the old pads from the caliper and using a big c clamp or calpiper compression tool and the old inner pad compress the caliper piston back in all the way.
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Are the rear brake caliper pistons on a 1991 pontiac grand prix compressed with a c-clamp type tool or do they need to be rotated back in to bottom them out?


are they smooth faced? if so a C-Clamp/if they have some indentations in the face you need to screw these in with a homemade tool or for about $15 get a multi-purpose tool for many different vehichle brake piston types

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I cannot compress the rear brake caliper piston to install new pa


In the back the caliper pistons actually have to be turned... you can either do it with something that can fit in the two v-shaped notches, or you can buy a tool from Autozone, etc. that will fit on a 3/8" drive ratchet to turn the piston back in.

I did this myself for the first time about 4 weeks ago. Confused me until I asked an Autozone employee.

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