Changing crank sensor because Tach intermittently not workin - GM Forum - Buick, Cadillac, Chev, 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.

Thread Tools Search this Thread
Old 12-14-2004, 06:47 PM   #1
Senior Member
Posts like a 4 Banger
Thread Starter
Join Date: Dec 2004
Posts: 149
Thanks: 0
Thanked 0 Times in 0 Posts
1997_LeSabre is on a distinguished road
Default Changing crank sensor because Tach intermittently not workin

Hey guys, I have a 97 LeSabre with the L36 w/ 68,500 miles on it. In the past 1000 or so miles, the tach will stay resting at 0 when I first start the car and let it idle. Once I start driving the car, the tach will start fluctuating and then behave normally. I read on this board that someone had this problem and their culprit was the crank sensor. I am not throwing and codes or having any engine problems, but short of my tach itself in the instrument cluster having a problem, I didn't have any better ideas to remedy this. I usually don't do any heavy duty repair work on this engine since its still fairly low mileage, so I'm not well acquainted with that wonderful passenger side of the motor, where all the accessories are. I'm assuming the crank sensor is readily accessible, just attached with a couple bolts, and I don't have to pull the balancer to get to it. Am I correct? Are the mounting holes for the crank sensor slotted, so I have to set the gap from the sensor to the reluctor wheel? I know on a newer Ford I had to work on the crank sensor had adjustable position.
1997_LeSabre is offline   Reply With Quote
Old 12-14-2004, 08:09 PM   #2
Senior Member
True Car Nut
Join Date: Dec 2003
Location: Corn Fields, IN
Posts: 2,766
Thanks: 0
Thanked 0 Times in 0 Posts
John Deere Boy is on a distinguished road

Since the crank sensor is responsible for ignition timing and to some extent fuel injector sequencing, if it fails, the engine won't run, and you'll get a code.

I don't know about lesabres, but bonnevilles are known to have bad connections behind the IP cluster.
John Deere Boy is offline   Reply With Quote

Related Topics
Thread Thread Starter Forum Replies Last Post
changed crank sensor now no tach 1989_IROC-Z Pontiac 11 07-29-2012 11:27 PM
Heater's not workin 92BonneSSEi 1992-1999 3 04-09-2009 02:20 AM
FUEL GUAGE NOT WORKIN luminazkidd21 2000-2005 7 09-12-2006 09:27 AM
Dang friggin steering wheel stereo buttons not workin!!! BonEvilSSEi 1992-1999 4 07-14-2004 05:41 PM
Tach needle fluttering, possible crank sensor? crzydmnd72 1987-1991 3 04-17-2004 05:57 AM

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 11:42 PM.

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 and affiliated sites.