Help me please my 01 wont start - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


2000-2005 Discuss your 2000-2005 Bonneville SE, SLE, and SSEi Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

Reply
 
 
 
Thread Tools Search this Thread
Old 03-14-2008, 12:25 PM   #11
Member
Posts like a V-Tak
 
Join Date: Aug 2007
Posts: 82
Thanks: 0
Thanked 0 Times in 0 Posts
fbody69 is on a distinguished road
Default

Crank sensors usually don't go out the way you described. They usually are a nuisance for months before the final break down. They usually throw codes over and over. You get some stalling with no problem restarting. The tach will drop out ocasionally. If you didn't ever have a check engine light in the past then this seems not to be a crank sensor problem....
fbody69 is offline   Reply With Quote
Old 03-14-2008, 01:24 PM   #12
Junior Member
Thread Starter
 
Join Date: Mar 2008
Posts: 7
Thanks: 0
Thanked 0 Times in 0 Posts
idkaac is on a distinguished road
Default

Hmmm. Do you have any ideas on what it could be if its not the crank sensor. Is there any way to test the crank sensor before we replace it????
idkaac is offline   Reply With Quote
Old 03-14-2008, 01:48 PM   #13
Member
Posts like a V-Tak
 
Join Date: Aug 2007
Posts: 82
Thanks: 0
Thanked 0 Times in 0 Posts
fbody69 is on a distinguished road
Default

No way to test it other than looking for the codes..... It'* very surprising that you do not have any codes with all the problems you had. Maybe a re check is in order. Depending on who checked the codes for you.
fbody69 is offline   Reply With Quote
Old 03-14-2008, 02:32 PM   #14
Senior Member
Certified GM nut
 
Join Date: Oct 2005
Location: Western New York
Posts: 1,942
Thanks: 0
Thanked 0 Times in 0 Posts
Technical Ted is on a distinguished road
Default

I'm standing by my statement that we don't see many codes thrown for failing crank sensors.

Most shops & do-it-yourselfers will not have the equipment to check the crank sensor signal. A dealer should be able to check it but the checking will cost more than the sensor.
Some autoparts stores can test the ICM but the results aren't very reliable. The best way to test the ICM is to try it on another car with the same engine.

Before changing the crank sensor let'* make sure your battery is putting out 12 volts & see if the how much the voltage is dropping while cranking. I'm assuming the car is cranking over strong. How old is the battery? Strange things can happen before a battery dies completely.
Technical Ted is offline   Reply With Quote
Old 03-14-2008, 03:17 PM   #15
Senior Member
True Car Nut
 
Join Date: Jul 2004
Location: Grand Rapids, Mi
Posts: 5,656
Thanks: 0
Thanked 0 Times in 0 Posts
Archon is on a distinguished road
Default

More often than not, the crank sensor will not throw a code. If someone has a scanner that can watch the 3x signal from the crank sensor they might be able to view a problem.
Archon is offline   Reply With Quote
Old 03-14-2008, 03:25 PM   #16
Member
Posts like a V-Tak
 
Join Date: Aug 2007
Posts: 82
Thanks: 0
Thanked 0 Times in 0 Posts
fbody69 is on a distinguished road
Default

Mine had the code very often and for months before I replaced it. I've read quite a few posts on this board where people had the code for crank sensor and it actually was the problem. And on the other hand, I haven't seen one reported bad crank sensor without a code. All I'm going by is my personal experience and what I've read on this board in the last six months.
fbody69 is offline   Reply With Quote
Old 03-14-2008, 03:37 PM   #17
Senior Member
True Car Nut
 
Join Date: Jul 2004
Location: Grand Rapids, Mi
Posts: 5,656
Thanks: 0
Thanked 0 Times in 0 Posts
Archon is on a distinguished road
Default

There have been several reports on the board of stalling/no start that was the crank sensor without having a code. I am not going to spend them time searching them out. That along with my personal experience is that the crank sensor often will not throw a code. We are trying to help a member with a problem, and to say that a crank sensor will always throw a code, so if the code isn't there can be ruled out, is simply inaccurate and does not help the poster with the problem.
Archon is offline   Reply With Quote
Old 03-14-2008, 03:43 PM   #18
Mark Fahey
Guest
 
Posts: n/a
Default

I'm going by what you described as your gauges going crazy as in more than just your tach. To me, that would indicate a common electrical problem that isn't sensor related. The fuse block was mentioned as a possibility but perhaps there is an issue with the battery or alternator or bad grounds.
  Reply With Quote
Old 03-14-2008, 03:48 PM   #19
Member
Posts like a V-Tak
 
Join Date: Aug 2007
Posts: 82
Thanks: 0
Thanked 0 Times in 0 Posts
fbody69 is on a distinguished road
Default

Quote:
Originally Posted by Archon
There have been several reports on the board of stalling/no start that was the crank sensor without having a code. I am not going to spend them time searching them out. That along with my personal experience is that the crank sensor often will not throw a code. We are trying to help a member with a problem, and to say that a crank sensor will always throw a code, so if the code isn't there can be ruled out, is simply inaccurate and does not help the poster with the problem.
OK I did take the time to do a search and at a rate of 4 to 1 they throw a code. So you are correct in saying they don't always throw a cdoe. And in the interest of helping people, it'* wrong to say they rarely throw a code or usually don't throw a code. I was wrong saying that they always throw a code. Wait a minute. I didn't say that did I? What I said was that it was surprising that it didn't throw a code.
fbody69 is offline   Reply With Quote
Old 03-14-2008, 03:58 PM   #20
Senior Member
True Car Nut
 
Join Date: Jul 2004
Location: Grand Rapids, Mi
Posts: 5,656
Thanks: 0
Thanked 0 Times in 0 Posts
Archon is on a distinguished road
Default

Before doing anything with the crank sensor, other than perhaps checking with a scanner, check out the electrical connections. This is the last page of the thread by 2000SilverBullet that PDad mentioned, that shows the solution to his problem. It'* a good place to start. You may want to skim the thread to see the symptoms.
http://www.bonnevilleclub.com/forum/...=asc&start=120

Also check the positive connection, under the red cover, to the underhood fuse box, as well as the 3 bolts that hold it down. Then, work to the under seat fuse box, and check the connections there. You may want to take the connections apart, clean them, and reconnect with dielectric grease. One thing to pay close attention to is where the negative battery cable attaches to the floor pan under the seat. Take that apart, clean the bolt and thread in the floor real well, and reconnect after applying dielectric grease.
Archon is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
1994 bonneville-wont start, wont run backwoodsfab 1992-1999 0 10-09-2008 07:27 PM
car gets battery power but wont start. please help my bonnie 88bonnsse Everything Electrical & Electronic 17 01-30-2007 08:38 PM
PLEASE HELP!!! Code 58??? Wont Start! Ryfly05 1992-1999 11 04-16-2005 02:10 AM
Car wont start! Please help shayrgob 1992-1999 13 03-03-2004 03:29 AM
93 SSEi wont start(please help i need this car to run) SSEimatt93 1992-1999 20 08-31-2003 01:09 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 06:02 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 Amazon.com and affiliated sites.