Crankshaft Position Sensor Question - GM Forum - Buick, Cadillac, Olds, GMC & Pontiac chat

1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

Crankshaft Position Sensor Question

Reply

 
 
 
Old 09-29-2005, 11:32 AM
  #1  
Junior Member
Thread Starter
 
Join Date: Sep 2005
Posts: 4
Thanks: 0
Thanked 0 Times in 0 Posts
Sevan is on a distinguished road
Default Crankshaft Position Sensor Question

Hi all, I just purchased my first Bonneville for $330 at a police auction and I love it! I had no idea that Bonnevilles were so popular as evidenced by this forum etc... It sounds like these cars are pretty awesome, my dad is currently driving a 3.8 with over 240,000 on it and his previous 3.8 had over 340,000 miles on it! My car is a 92 SE and has 174,000 on it. I had put about 500 miles on it when it died on me while driving it, the car would crank and eventually started. I drove the car another 150 miles and it did the same thing this time it would turn over but wouldn't start. Both times it died it threw a "service engine soon" light. Through searching these forums I suspected that it was the crankcase sensor. This morning I went out and ran the code retrieval (BTW thats an excellent tutorial in the TechInfo section) and it showed a code 18, which is a cam/crank error as I suspected. Now down to my question (sorry about the long post), according to Chilton when reinstalling the crankshaft bolt I "torque it down to 110 ft. lbs, plus an additional 76 degree rotation". I am not quite sure what they are talking about with the additional 76 degree rotation and how would you measure it? Is it critical that you get exactly a 76 degree rotation? Thanks all for your help in advance.
Sevan is offline  
Reply With Quote
Old 09-29-2005, 11:41 AM
  #2  
DINOSAURUS BOOSTUS

Expert Gearhead
 
BillBoost37's Avatar
 
Join Date: Mar 2005
Location: Enfield, CT
Posts: 41,391
Thanks: 0
Thanked 0 Times in 0 Posts
BillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of light
Default

Close is good enough on the extra degrees.

Think about a right angle..90 degrees and a V is about 45 degrees... so somewhere up the middle between L and V is 76 degrees.
BillBoost37 is offline  
Reply With Quote
Old 09-29-2005, 11:49 AM
  #3  
Junior Member
Thread Starter
 
Join Date: Sep 2005
Posts: 4
Thanks: 0
Thanked 0 Times in 0 Posts
Sevan is on a distinguished road
Default

Thanks Bill, I was figuring about the same. I just wasn't sure how critical it was and wanted to bounce it off someone that has replaced a few.
Sevan is offline  
Reply With Quote
Old 09-29-2005, 11:51 AM
  #4  
DINOSAURUS BOOSTUS

Expert Gearhead
 
BillBoost37's Avatar
 
Join Date: Mar 2005
Location: Enfield, CT
Posts: 41,391
Thanks: 0
Thanked 0 Times in 0 Posts
BillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of light
Default

Working with a dealership mechanic for years taught me a couple things..

It'* pretty infrequently they actually use a torque wrench because their arms are calibrated or it'll slow them down and flat rate doesn't pay slow people well.

You'll be close and that'll be right on the money as far as the engineering of it goes.
BillBoost37 is offline  
Reply With Quote
Old 09-29-2005, 12:14 PM
  #5  
Junior Member
Thread Starter
 
Join Date: Sep 2005
Posts: 4
Thanks: 0
Thanked 0 Times in 0 Posts
Sevan is on a distinguished road
Default

I am going to go out and pull the access cover and check the wiring harness (sounds as if its pretty common for them to go bad) to the sensor. If the wiring is good I will replace the sensor and give you guys an update when I am done. Thanks again for all your help.
Sevan is offline  
Reply With Quote
 
 
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
anathema05
Pontiac
0
05-20-2015 06:59 PM
bill1971
1992-1999
15
07-14-2009 11:30 AM
Drifter420
1992-1999
19
05-16-2009 08:03 PM
princegohan01988
1987-1991
29
10-29-2007 11:00 PM
princegohan01988
General GM Chat
1
10-24-2007 07:15 AM


Thread Tools
Search this Thread
Quick Reply: Crankshaft Position Sensor Question


Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service

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.