92 buick regal gran sport replacing harmonic balancer having trouble getting the retaining bolt off can you help me

if the switch is not working it will have to be replaced you don`t fix them. but you don`t say what problem your having with it.

Have you determined if it is loosing spark when it dies ?
Any check engine trouble codes ?

Remove the vacuum line at the modulator. Remove the bolt and the modulator assembly retainer. Remove the modulator assembly. Reverse order to install.

NOTE: if the modulator valve comes out of the bore when removing the modulator vacuum assembly, note the orientation of the valve and reinstall it in the bore before installing the new vacuum modulator assembly. (see picture)

you will need a puller to take off the harmonic balancer, then you will see it. it has to line up perfectly with the balancer.

When my 94 Regal GS frequently wouldn't start for 30 minutes to an hour after being driven, it was the crankshaft positioning sensor that needed to be replaced. I also replaced the harmonic balance pulley. The car ran more smoothly and started everytime.

you will need to remove the crankshaft bolt with an air impact wrench. Then you will need to get a balancer puller to get the pulley off.

REMOVE OR DISCONNECT

1. Serpentine belt from the crankshaft pulley.
2. Raise the vehicle on a hoist.
3. Right front tire and wheel assembly.
4. Right inner fender access cover.
5. Using a 28 mm socket, remove the crankshaft harmonic balancer retaining bolt.
6. Crankshaft harmonic balancer using tool J 38192 or equivalent.
7. Sensor electrical connector.
8. Foreign object deflector.
9. Sensor and pedestal from block face.
10. Sensor from pedestal.

INSTALL OR CONNECT:

1. Loosely install the crankshaft sensor on the pedestal.
2. Position the sensor with pedestal attached on special Tool J 37089.
3. Position the special tool on the crankshaft.
4. Bolts to hold the pedestal to the block face, torque to 20-40 Nm (14-28 lb.ft).
5. Torque the pedestal pinch bolt to 3-4 Nm (38-40 lb.in).
6. Remove special tool J 37089.
7. Place the special tool 37089 on the harmonic balancer and turn. If any vane of the harmonic balancer touches the tool, replace the balancer assembly.
8. Balancer on the crankshaft.

• Apply thread sealer (GM 1052080) or equivalent to the threads of the balancer bolt.

1. Torque the crankshaft bolt to 140 Nm + 56°(104 lb.ft + 56°).
2. Foreign object deflector.
3. Electrical connector.
4. Inner fender shield.
5. Tire and wheel assembly, torque to 140 Nm (104 lb.ft).
6. Lower the vehicle.
7. Serpentine belt.

Remove yonder pulley and you will find the bolt holes are elongated. get another from a scrapyard (take the bolts too.) replace and you should be fine.

Is it a serpentine belt? If so, there should be a small pulley, called a tensioner. Loosen that, and you should be able to remove & replace your belt.

sounds like the same thing that was wrong with the 94 GS i recently bought. found the crankshaft postion sensor to be bad. it controls your electronic spark timing which would allow it to turn over with out starting.
also does your stall when you are stopped and at idle or while at driving speed or both? mine would stall at idle and driving speeds. Changed that sensor and have not had any more issues with stalling. sensor should cost around $30-$40 dollars at your local autozone, takes about 2 hours to change just need to pull the harmonic balancer pulley (make sure to use the proper tool or you will bend the pulley) and the sensor is behind the pulley. you will gain easier access to doing the maintenace buy removing the passenger front tire and the little splash gaurd directly behind the tire held on by 3 quick release fasteners. hope this helps you out.