Crankshaft Position Sensor Replacement on 2001 GMC Sierra 2500 HD

I've owned my 2500HD since new. Now has 151,000 miles. Always owned GMC/Chevy Trucks. Wouldn't have anything else. I had the crankshaft sensor replaced by a dealer at about 70,000 miles. Same symptoms are occuring again. I know where the sensor is located. Question is..how do you get to it to replace it? Thanks

by in Rockaway Beach, MO on July 14, 2010
1 answer 1 comment
ANSWER by on July 21, 2010
you have to get everything out the way to get to it.belt, pulleys, fans if neccssary. purchase a crank shaft pulley puller and pull the crank pulley. make sure everything in front of the cover is out the way and you can get to the bolts on the cover. remove the cover replace the position sensor
3 people like thisFlag inappropiate
COMMENT by on August 29, 2010
If it's an 8.1 liter, the crankshaft position sensor is on the back of the motor on the top by the firewall. Easiest way to change it is from under the truck. It's held in by 1 bolt.
Related Items:
The first time we had a problem we had gone to the Dr.and when we came out to start the truck it started and ran for about 15 seconds then died. It would crank but not start. About an hour later af...
2001 gmc sierra 2500hd 8.1 ltr Two weeks ago i had my cam shaft positioning sensor replaced and i changed the oil and put fuel injector cleaner in her and filled her up( fuel pump and filter 6 m...