Question about 1997 Pontiac Grand Prix

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What is the Harmonic balancer bolt size for 1997 Grand Prix 3.8L Vin 1 and what to do if flywheel moves during removal of HB bolt

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  • Debbie Apr 22, 2015

    I'm having trouble locating the flywheel info. I have repair manua for my car but it doesn't say what to do if accidently move it a little when removing harmonic balancer.

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2 Answers

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  • Master
  • 1,602 Answers

That really depends whos the manufactures at that time, you could call a motor shop, call the dealer, go to local auto parts store, ask the clerk, i things standard 3/4 to 1 inch, metric 22-25mm

service manual, may tell, local library.
www.ask.com/bolt_size_for_harmonic_balancer_1997_grand_prix_3.8l_vin1

Posted on Apr 21, 2015

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  • Pontiac Master
  • 14,585 Answers

15 MM or 18 MM, Not sure which one. Use a screw driver or pry bar to keep the flywheel from turn. You have to remove the starter. Wedge it in place on the flywheel gears. I do it by myself, but two people makes it easier.

Posted on Apr 22, 2015

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Posted on Jan 02, 2017

emissionwiz
  • 76109 Answers

SOURCE: harmonic balancer coming out.

You say the bolt is tight? then if that is the case the balancer out ring is comming apart, the balancer needs to be replaced

Posted on Sep 12, 2008

co7196
  • 3433 Answers

SOURCE: cannot remove harmonic balancer bolt on 96 honda (2.2L)

You may need an impact gun. If loctite was used, you will need a gun.

Posted on Sep 13, 2009

  • 1244 Answers

SOURCE: I need to replace my timing belt but when I tried

yes!! you need to pull the harmonic balancer !! and the center nut i do believe...is a 22 mm and yes you will need a puller

Posted on Jan 15, 2010

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1 Answer

Harmonic balancer seal-1997 plymouth grand voyager van


Depending on the amount of room to the radiator / fan shroud it is not excessively difficult to do if you have the correct tools. You will need a 1/2 inch impact gun , harmonic balancer remover, screw driver, hammer. a piece of pipe the same size as the outside dia of the seal and a hammer along with a selection of spanners and sockets to remove the fan belt and anything else that will be in your way.. IF the balance is held on with a bolt then the easiest thing is the impact gun. the harmonic puller to pull the balancer off with, the pipe and the hammer to replace the seal. the screw driver to pry out the old seal

Dec 22, 2013 | Cars & Trucks

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How to change crankshaft sensor on 1999 grand price gt


To get to the sensor, the harmonic balancer pulley on the crankshaft has to be removed. The center bolt on the harmonic balancer is on very tight. To loosen without an impact wrench, remove starter motor and wedge a piece of wood against the flywheel, or use a pry bar and hold the ring gear on the flywheel rigid, while loosening the crank bolt. The engine will try to turn backward when you loosen the crank bolt, so you have to hold the flywheel rigid. Once the bolt is removed, see if you can get the harmonic balancer pulley off without a gear puller. Just try tapping it to see if it slides off, or use two screwdrivers on each side behind the pulley and see if you can start it sliding off. If it is on very tight, as many are, you will have to get hold of a harmonic balancer removal tool-a simple, inexpensive puller that bolts onto pulley and can be drawn off. You might be able to rent the tool too.
BTW, you will need to have the wheel removed from passenger side, and the inner fender cover removed to get to the crankshaft. Once the pulley is off you can unbolt the sensor and put the new one on. GM recommends using a sensor alignment tool to install, because the thin vanes on the back of the harmonic balancer pass through the sensor, and if not aligned right could damage one or the other. If you don't have the tool, put the sensor on loosely mounted, just snugged up finger tight, then test the pulley will slide through the sensor slots without touching either side of sensor. If it looks right, tighten down the sensor in place, install the harmonic balancer pulley and tighten the center crank bolt to about 105 foot pounds.
Wedge the flywheel again so the engine won't turn when tightening the crankshaft bolt.
Good luck, and hope you get it.

May 08, 2013 | Cars & Trucks

2 Answers

Had my Harmonic Balancer replace now it shuts off after 10 mins of it being on


the garage may have did something to the crank position sensor that is located behind the harmonic balance. there is a ring gear there to for the timing

Oct 30, 2012 | 2001 Pontiac Grand Prix

1 Answer

What pulley do you use to take off the harmonic balancer on a 97 grand prix


I wouldn't use a "pulley". I would use a harmonic balancer puller (available at most parts retailers).

May 31, 2012 | 1997 Pontiac Grand Prix

1 Answer

Harmonic balancer retaining bolt is off, but i can only get two of the three puller bolts to thread. How do i remove it?


RETAP THIRD HOLE ONE SIZE UP ARE IF IT IS SAE THEN USE METRIC I HAVE WENT COURSE THREADED BOLT ALITTLE BIGGER JUST SO IT GETS A BITE.

Feb 13, 2010 | 2000 Pontiac Grand Prix

1 Answer

Crankshaft sensor on a Monte Carlo 2001 SS 3.8 where is this on the car and how to replace it?


3.8L Engine
  1. Turn OFF the ignition.
  2. Remove the serpentine belts from the crankshaft pulley.
  3. Raise the vehicle.
  4. Remove the right front wheel and tire assembly.
  5. Remove the right inner fender access cover.
  6. Hold the flywheel with a (J 37096) flywheel holding tool.
  7. Using 28 mm socket, remove the crankshaft harmonic balancer retaining bolt.
  8. Remove the crankshaft harmonic balancer, using a (J 38197-A) balancer remover.
  9. Remove the crankshaft position sensor shield (1). Do not use a pry bar.
  10. Disconnect the sensor electrical connector.
  11. Remove the attaching bolts from the crankshaft position sensor.
  12. Remove the crankshaft position sensor from the block face.
To install:
  1. Position the crankshaft position (CKP) sensor to the block.
  2. Install the bolts to hold the CKP sensor to the block face. Tighten the bolts to 14-28 ft. lbs. (20-40 Nm).
  3. Reinstall the crankshaft position sensor shield.
  4. Connect the CKP sensor electrical connector.
  5. Position the crankshaft harmonic balancer on the crankshaft.
  6. Hold the flywheel with a (J 37096) flywheel holding tool.
  7. Using a (J 36660-A) torque/angle meter, tighten the harmonic balancer bolt to 110 ft. lbs. (150 Nm), plus an additional 76 degrees.
  8. Install the right inner fender access cover.
  9. Install the right front wheel and tire assembly.
  10. Tighten the wheel nuts to 104 ft. lbs. (140 Nm.).
  11. Lower the vehicle.
  12. Reinstall the serpentine belts.

It looks like this:

fd368a5.jpg

Jan 10, 2010 | 2001 Chevrolet Monte Carlo

1 Answer

How do i put a harmonic balance on a 1997 dodge caravan 3.0 engine


first step is to remove the serpintine belt remember which way it comes off or sometimes theres a sticker under hood that tells u the belt routing. next jack up passengerside of vehicle remove the tire inside the wheel well theres some plastic that wil have to be removed some cases its already gone if so u will be able to see the harmonic balancer its the very bottom pulley with about a 15/16 bolt in the center of the pulley. remove it note that bolt is torqued very tight the best way is to have access to an impact gun. once bolt is removed u will need a harmonic balancer puller . not if ur worried on how it goes back together theres is on 1 way that it goes back on the pulley will have a notch on it and the crank shaft with a half moon key way. install in revers order.

Jan 09, 2010 | 1997 Dodge Grand Caravan

1 Answer

I need instructions on how to change a crank shaft censor on a 2000 pontiac grand prix gt


3.8L Engines
  1. Disconnect the negative battery cable.
  2. Remove the serpentine belt(s) from the crankshaft pulley. Please see Section 1.
  3. Raise and safely support the vehicle.
  4. Remove the right front tire assembly. Remove the right inner fender access cover.
  5. A flywheel holding device such as GM's J 37096 is required to keep the crankshaft from turning as the crankshaft balancer is being removed. Install this holding tool or its equivalent. Please see Section 3 for more information.
  6. Using a 28mm socket, remove the crankshaft harmonic balancer retaining bolt. Using special tool J 38197 or equivalent balancer removal tools, drawn the balancer from the end of the crankshaft. Please see Section 3 for more information.
  7. There is a roughly circular aluminum shield that protects the crankshaft position sensor; remove this shield. Use care not to damage it. Do not pry to remove.
  8. Detach the electrical connector from the crankshaft position sensor, remove the attaching bolts and separate the sensor from the engine block face.

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Dual Crankshaft Position (CKP) sensor removal—3.8L Engines

To install:
  1. Clean all parts well. Position the crankshaft sensor to the block face and tighten the bolts to 14–28 ft. lbs. (20–40 Nm).
  2. Install the crankshaft position sensor shield. Verify that the electrical connector is secure.
  3. Install the crankshaft balancer. Please see Section 3.
  4. Torque the crankshaft balancer center bolt to 110 ft. lbs. (150 Nm), plus an additional 76 degrees.
  5. Install the inner fender access cover and the right front tire assembly. Wheel nut torque is 104 ft. lbs. (140 Nm).
  6. Lower the vehicle.
  7. Install the serpentine belt(s), as outlined in Section 1.
  8. Connect the negative battery cable.

Oct 13, 2009 | 2000 Pontiac Grand Prix

2 Answers

Harmonic balancer


what are the steps to removing a harmonic balancers

Oct 18, 2008 | 1997 Chevrolet Corvette

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