A 1/2" drive impact wrench (air or electric) would do the trick.
remove the front passenger wheel, remove the crank pulley, remove the crank sensor. you may need a GM special tool to remove certain bolts
Remove the drive belt, remove the crank pulley (need a special puller for this), remove the plastic shield, and finally remove the two bolts that secure the sensor to the engine. This is all done through the passenger side wheel well with the wheel removed.
Remove drivers side front wheel. Remove inner plastic wheel arch/guard. The crankshaft pulley is now visible To the right hand-side of the pulley is the crankshaft sensor
I want to take off the pulley wheel off,from a 1992 chevy lumina apv van.
Lift car on jack stands, remove right wheel for better access,remove any belts, remove pulley bolt, then use a pulley remover to remove pulley, carefully pry out old seal thebn tap in new seal with mallet or plastic hammer, if pulley has ridges on it you may have to replace pulley or you might still have leaks. reinstall pulley,bolt, belts and wheel. Good Luck.
It is behind the Crank Pulley (harmonic balancer). You will need a special puller, and a 1/2 in impact wrench. You must remove the RF wheel, and inside fender cover to access.
lever at crank, connected by chain to lever at rear wheel
Remove anything that may obstruct pulley (belt, wheel, etc.). Your best bet is to use an impact gun to remove bolt in center of pulley (turn counter-clockwise and use safety goggles). After loosening bolt you need to use a harmonic puller to get pulley off crankshaft (do not use impact gun on puller). Tip: Unthread bolt about 1/4 inch from crank pulley then use puller, loosen puller and remove crank bolt a few more turns off crankshaft, then use puller again to slide crank pulley off crank again, keep repeating until it is off.
There is a large metric bolt right (17 or 18mm) in the center of the main crank pulley. Immobilize the crank using a vise-grip equiped with a locking chain. Wrap an old fan belt (cut-to-size) around the crank and protect the serpentine gooves of the crank pulley, then wrap the vise chain and clamp onto the crank. Use a good breaker bar, or impact hammer to break the bolt torque free counter-clockwise. Note: Don't remove the four 10mm bolts on the crank pulley. The whole thing comes off as one assemble piece.
This requires a special tool to remove and install the pulley. Most auto parts stores should have one in stock Best to remove the pulley with the pump removed from the engine compartment.
usually behind the crank pulley, if you take the passenger side wheel off you will be able to see part of the pulley, very bottom one.
Remove: the passenger side front wheel, plastic shroud around crankshaft assembly, fan belt. Remove the crankshaft bolt and heat the pulley with a heat gun, then using a 3 jaw pulley and a bushing driver (for the hole in the crank pulley), put a long screwdriver through the crank pulley to hold it still while you turn the bolt on the 3 jaw puller to take the crank pulley off. Let it cool. Pull the old seal out with a screwdriver, but be careful not to scratch the crank or damage the seal mating surface. Install the new seal with a soft face hammer flush with the timing cover housing. Lube the seal and crank pulley and start the pulley onto the shaft. Tap the pulley on and fully seat it, not using the bolt to do this, but a hammer. Once the pulley is fully seated, install the bolt and torque to 80 ft lbs. Replace t he belt, shroud and front wheel.