Generation III Internal Engine 1997-2006 LS1 | LS6
Sponsored by:
Sponsored by:

Tach problem, bad cam sensor?

Thread Tools
 
Search this Thread
 
Old 06-10-2009, 02:48 AM
  #1  
12 Second Club
Thread Starter
iTrader: (1)
 
The Crazy Sweed's Avatar
 
Join Date: Nov 2007
Posts: 675
Likes: 0
Received 0 Likes on 0 Posts
Question Tach problem, bad cam sensor?

Since last summer I have had an intermittent tachometer problem, first time it accrued the tach died and the SES light came on. I can’t remember the code, but I went in with a obd2 reader and deleted the code, and the tach started to work again. Not much later the tach died again, but no SES light.
Since then the tach lies on the bottom, 0rpm, and some times it starts to move and when it does, it moves very fast and in consistent (moves al over the range). Since the problem seams to be a signal problem, Could it be the cam sensor or the crank trigger?

I think the problem occurred after I replaced the clutch and dissembled the flywheel.
Could I have damaged a cable?

Is this the cam sensor btw.


Thanks Anton
Old 06-10-2009, 10:22 AM
  #2  
TECH Fanatic
iTrader: (5)
 
Mumbles's Avatar
 
Join Date: Aug 2007
Location: SouthEastern Iowa
Posts: 1,445
Likes: 0
Received 2 Likes on 2 Posts

Default

A similar thing happened to a friends 02 Camaro. No tach, and eventually an SES light and it ended up being a mouse had chewed threw the cam sensor wiring while the car was in storage. I'm pretty sure the part you have circled in your diagram is the cam sensor because I know the garage that fixed this car said they had to remove the intake to fix the wiring. Hope this helps. Good Luck.
Old 06-10-2009, 04:01 PM
  #3  
LS1TECH & Trucks Sponsor
iTrader: (34)
 
Scoggin Dickey's Avatar
 
Join Date: Mar 2002
Location: Lubbock, TX
Posts: 3,524
Likes: 0
Received 33 Likes on 21 Posts

Default

That is the cam sensor that you circled. It could very well be the sensor or the wiring, or a ground issue.
__________________

800-456-0211 / PM / Facebook
WHIPPLE Superchargers, Procharger, Magnuson, Powerbond Sale, HPTuners packages!, Trickflow, AFR, PRC, CHE Trunion upgrade, $100 7.400" pushrod set, Custom Cam of your choice


Old 06-11-2009, 01:54 AM
  #4  
12 Second Club
Thread Starter
iTrader: (1)
 
The Crazy Sweed's Avatar
 
Join Date: Nov 2007
Posts: 675
Likes: 0
Received 0 Likes on 0 Posts
Default

Thanks for the input!

Originally Posted by Mumbles
A similar thing happened to a friends 02 Camaro. No tach, and eventually an SES light and it ended up being a mouse had chewed threw the cam sensor wiring while the car was in storage. I'm pretty sure the part you have circled in your diagram is the cam sensor because I know the garage that fixed this car said they had to remove the intake to fix the wiring. Hope this helps. Good Luck.
That might be the problem.. have to have a look att the wiring, it could have been damaged when i replaced the clutch. Since i had the trans "hanging" in the engine mounts while i was unbolting the trans.

Thanks!
Old 08-04-2009, 10:30 PM
  #5  
11 Second Club
iTrader: (3)
 
99Ls1fever's Avatar
 
Join Date: Apr 2008
Location: Eaton, Colorado
Posts: 1,822
Received 36 Likes on 30 Posts

Default

Needed Tach info so am bookmarking...



Quick Reply: Tach problem, bad cam sensor?



All times are GMT -5. The time now is 04:03 AM.