Chevy/GMC Duramax 01-04 LB7 Discussion of Chevy and GMC Trucks with LB7 Duramax Turbo Diesel Engines

crank position sensor

Thread Tools
 
Search this Thread
 
Old Jun 1, 2012 | 07:27 PM
  #1  
tator1991's Avatar
Thread Starter
|
Newbie
Joined: Jun 2012
Posts: 1
Likes: 0
Default crank position sensor

i recently put in a new crank sensor in my 2002 6.6 lb7 and truck no longer runs( it did before but just would die while i was driving and show code ckp) but when i was takin the old one out my nephew tried startin the truck and i got the new sensor in and the truck will not start. Is that because the crank sensor no longer lined up in the correct place with crank shaft. If soo how do u fix it to get it back lined up
 

Last edited by tator1991; Jun 1, 2012 at 07:29 PM.
Reply
Old Jun 1, 2012 | 10:08 PM
  #2  
2004LB7's Avatar
Diesel Bomber
Joined: Dec 2010
Posts: 1,190
Likes: 113
From: Fool's Golden State
Default

please list codes. are there any modifications or tuners on the truck?

the crank sensor is self aligning. basically the reluctor wheel has a missing tooth the the ecm uses as the starting point. if the sensor does not send the signal or the ecm doesn't get it the engine wont start.

make sure the sensor is fully seated and no debris between the sensor. check if it will start

if it still wont start then check for any bad wires or shorts with an ohm meter
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
1997silverado
Chevy/GMC 6.2L and 6.5L
5
Sep 7, 2023 06:20 PM
Mr. Walkway
12 Valve 2nd Gen Dodge Cummins 94-98
3
May 11, 2015 10:49 AM
robbyS
5.9 Liter CR Dodge Cummins 03-07
3
Apr 16, 2015 02:22 PM
Moly Squid
Chevy/GMC 6.2L and 6.5L
3
Mar 28, 2015 04:26 PM
Jmohr52
24 Valve 2nd Gen Dodge Cummins 98.5-02
3
Mar 4, 2015 01:18 AM




All times are GMT -5. The time now is 02:57 AM.