HELP crank sensor or pcm? - Diesel Bombers

12 Valve 2nd Gen Dodge Cummins 94-98 Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with P7100 Injection Pumps

HELP crank sensor or pcm?

Reply

 
 
 
  #1  
Old 01-29-2015, 01:56 PM
Mr. Walkway's Avatar
Newbie
Thread Starter
Join Date: Dec 2014
Location: central IL
Posts: 6
Thanks: 0
Thanked 0 Times in 0 Posts
Default HELP crank sensor or pcm?

Hey guys just curious if anyone could help me out with testing my crank sensor and pcm. I recenlty had the batteries out of my truck for a few days to change the rad thermostat and block heater when i finished up i went to jump her and now ive got not tach no speedo the trans wont shift normally and no od lock up and the alternator doesnt seem to be charging. Ive read alot that the cps (crank position sensor) is notorious for causing these issues but have no way to test without forking over the hundred for a new sensor Up front. I have a decent multimeter but dont know how to test the sensor. Shes a 96 2500hd 12 valve cclb little help would be greatly appreciated
 

Last edited by Mr. Walkway; 01-29-2015 at 02:05 PM.
Reply With Quote
  #2  
Old 01-29-2015, 03:14 PM
Newbie
Join Date: Feb 2014
Posts: 9
Thanks: 0
Thanked 0 Times in 0 Posts
Default

I've never done this myself, but I found an article that might help:

Part 5 -The Basics of Crank and Cam Sensors and How to Test Them

Hopefully someone with more experience than I will jump in. Good luck!
 
Reply With Quote
  #3  
Old 01-29-2015, 03:52 PM
Mr. Walkway's Avatar
Newbie
Thread Starter
Join Date: Dec 2014
Location: central IL
Posts: 6
Thanks: 0
Thanked 0 Times in 0 Posts
Default

thanks ill take a look. im nervous because most times ive seen people comment about crank sensor issues they talk about sporadic tach and speedos but mine just completely dead the oil pressure gauge seems to be working and the temp sensor and fuel gauge seems fine. oh and the o/d off switch no longer lights up when depressed.
 
Reply With Quote
  #4  
Old 05-11-2015, 11:49 AM
Newbie
Join Date: May 2015
Posts: 7
Thanks: 0
Thanked 0 Times in 0 Posts
Default

I do not believe there is a crank sensor... the small "sensor" at the crank is a magnetic pickup that runs the tachometer.... should be set at around .052 clearance from the vibration dampner... all it does is send a signal to make your tach know the engine speed...
 
Reply With Quote
 
 
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
ish1521
Ford Powerstroke 03-07 6.0L
1
08-26-2015 09:42 PM
Paladin
Diesel In Distress - Support Ticket
0
07-26-2015 04:59 PM
tmcc14
Ford Powerstroke 03-07 6.0L
0
04-21-2015 04:59 PM
Polaris04
Ford Powerstroke 03-07 6.0L
0
12-01-2014 09:27 AM
weatherby
99-03 7.3L Performance
5
11-05-2014 11:45 PM


Thread Tools
Search this Thread
Quick Reply: HELP crank sensor or pcm?


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.