Location of Crank Position Sensor - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1987-1991 Parley with regards to your 1987 to 1991 Bonneville, Olds 88 or Buick Le Sabre Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

Reply
 
 
 
Thread Tools Search this Thread
Old 07-30-2005, 10:07 PM   #1
Junior Member
Thread Starter
 
Join Date: Jul 2005
Posts: 3
Thanks: 0
Thanked 0 Times in 0 Posts
MattG554 is on a distinguished road
Default Location of Crank Position Sensor

I want to replace the crank position sensor on my 88 bonneville, but I can't find it. I have the front driver'* side wheel removed, but don't see it anywhere. Is it behind a cover? Anyone have any pictures they can post?

Thanks
MattG554 is offline   Reply With Quote
Old 07-30-2005, 11:58 PM   #2
Senior Member
Posts like a Corvette
 
Join Date: Jan 2004
Location: Montréal, QC
Posts: 1,374
Thanks: 0
Thanked 0 Times in 0 Posts
Foghorn is on a distinguished road
Default

It'* behind the Harmonic Balancer on the passenger side. Not sure about Series 1 engines, but normally you must pull the balancer to change the semsor.

Cheers,
Foghorn is offline   Reply With Quote
Old 07-31-2005, 11:51 AM   #3
BANNED
 
Join Date: Aug 2002
Posts: 0
Thanks: 0
Thanked 0 Times in 0 Posts
banned3800 is on a distinguished road
Default

Quote:
Originally Posted by Foghorn
It'* behind the Harmonic Balancer on the passenger side. Not sure about Series 1 engines, but normally you must pull the balancer to change the semsor.

Cheers,
Yes on the 88 Vin C 3800 the Balancer will have to be removed...

__________________
Best Car Insurance | Auto Protection Today | FREE Trade-In Quote
banned3800 is offline   Reply With Quote
Old 07-31-2005, 08:46 PM   #4
Junior Member
Thread Starter
 
Join Date: Jul 2005
Posts: 3
Thanks: 0
Thanked 0 Times in 0 Posts
MattG554 is on a distinguished road
Default

Quote:
Originally Posted by jr's3800
Quote:
Originally Posted by Foghorn
It'* behind the Harmonic Balancer on the passenger side. Not sure about Series 1 engines, but normally you must pull the balancer to change the semsor.

Cheers,
Yes on the 88 Vin C 3800 the Balancer will have to be removed...
Thanks for the info so far, the page I was looking at that told me it was on the driver'* side was obviously wrong..

So now I've got a pull tool for the harmonic balancer, and a 28mm socket for the bolt on the harmonic balancer. How do I keep the crank from spinning when I am trying to unbolt it? I'm so close to having this done, but my chilton'* manual is entirely useless.
MattG554 is offline   Reply With Quote
Old 07-31-2005, 11:11 PM   #5
Senior Member
Posts like a 4 Banger
 
Join Date: Mar 2005
Location: Appleton, WI
Posts: 124
Thanks: 0
Thanked 0 Times in 0 Posts
2seater is on a distinguished road
Default

Remove the cover under the torque converter/flexplate and clamp a vise-grip on the flex plate to stop the engine from turning. I have also heard of people threading a bunch of small rope in through the spark plug hole on a cylinder to stop the piston but I have never tried this. The damper should not require a puller, it is a slip fit on the crank, although it may require a good tug.
2seater is offline   Reply With Quote
Old 08-01-2005, 12:50 AM   #6
Senior Member
True Car Nut
 
Join Date: Sep 2004
Location: Farmington, Minnesota =MWBF '05 SURVIVOR= =CEBF '06 SURVIVOR= =August '06 COTM=
Posts: 9,130
Thanks: 0
Thanked 0 Times in 0 Posts
LakevilleSSEi is on a distinguished road
Default

You'll definantly want a puller for the balancer.....They don't just fall off with a tap of the wrist.

Also, the rope trick works...Just make sure you use twine, or rope that isn't freying or cheap and ratty that could leave a bunch of dust in the cylinder.
LakevilleSSEi is offline   Reply With Quote
Old 08-01-2005, 01:05 AM   #7
Senior Member
Certified Car Nut
 
Join Date: Mar 2003
Posts: 12,432
Thanks: 0
Thanked 0 Times in 0 Posts
J Wikoff is on a distinguished road
Default

I don't know if I like the idea of the rope trick. It would create uneven pressure on the head, valves or piston. And if you do it on a stroke with an open valve, however slightly, light bend a valve.
J Wikoff is offline   Reply With Quote
Old 08-01-2005, 01:08 AM   #8
Senior Member
True Car Nut
 
Join Date: Sep 2004
Location: Farmington, Minnesota =MWBF '05 SURVIVOR= =CEBF '06 SURVIVOR= =August '06 COTM=
Posts: 9,130
Thanks: 0
Thanked 0 Times in 0 Posts
LakevilleSSEi is on a distinguished road
Default

Quote:
Originally Posted by jwikoff99
I don't know if I like the idea of the rope trick. It would create uneven pressure on the head, valves or piston. And if you do it on a stroke with an open valve, however slightly, light bend a valve.
I don't think that there'* that much torque in there. Other wise if the rope trick scares you, you can get a tool that'* metal and screws into the spark plug hoe and it'* fairly long, so that way it hits the piston.

I personally don't like the vice grips on the flexplate idea....they're pretty flimsy, and if you f it up....you have to pull the motor to replace it.
LakevilleSSEi is offline   Reply With Quote
Old 08-01-2005, 03:58 AM   #9
Senior Member
True Car Nut
 
rjolly87's Avatar
 
Join Date: Jun 2003
Location: Las Cruces, NM
Posts: 6,854
Thanked 298 Times in 246 Posts
rjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant future
Default

no no no, you guys are doing it all wrong! you gotta get one guy under the car, in the flywheel with a tire iron <has to be a strong guy too> and another one up top with a 24 inch breaker bar. that is the way to go, for both times we did it
rjolly87 is offline   Reply With Quote
Old 08-01-2005, 04:07 AM   #10
Senior Member
Posts like a 4 Banger
 
Join Date: May 2005
Location: Houghton, MI
Posts: 120
Thanks: 0
Thanked 0 Times in 0 Posts
rixak is on a distinguished road
Default

Quote:
Originally Posted by rjolly87
no no no, you guys are doing it all wrong! you gotta get one guy under the car, in the flywheel with a tire iron <has to be a strong guy too> and another one up top with a 24 inch breaker bar. that is the way to go, for both times we did it
Seconded
rixak is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
P0336 code Crank Position Sensor jpreynolds 2000-2005 5 10-08-2007 03:56 PM
Crank Position Sensor 93 SSE 4 ME 1987-1991 8 08-29-2006 12:46 PM
Crank Position Sensor zr1 nsx ssei 2000-2005 2 08-07-2006 12:15 PM
HELP Changing Crank Position Sensor FieroGT42 1987-1991 12 11-12-2005 11:25 AM
Crank Position Sensor and Balancer Removal BPella 2000-2005 2 07-10-2004 10:47 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 04:19 AM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.