Cam Position Sensor / Grounding Trouble - PLEASE HELP! - TheDieselGarage.com
TheDieselGarage.com
 

Home Forum Who's Online Today's Posts Vendors Advertise
Go Back   TheDieselGarage.com > Dodge Diesel & Truck Discussion > 5.9L Cummins (1998.5-2002)

Thread Details Posted by n0ekt, this thread has received 2 replies and been viewed 2713 times.

TheDieselGarage.com is the premier Forum on the internet. Registered Users do not see the above ads.
Reply
 
Thread Tools Display Modes
Old 09-23-2010, 08:16 PM   #1
n0ekt
Junior Member
 
Join Date: Apr 2009
Location: CA
Posts: 12
Points: 597
Thanks: 5
Thanked 0 Times in 0 Posts
Exclamation Cam Position Sensor / Grounding Trouble - PLEASE HELP!

Hello all -

A few questions, if anyone's got the time to help out (truck specs in sig)...

Last year, I had an odd issue with overdrive and the lockup clutch 'fluttering' when it would try to shift to overdrive. I got some help here, and got some new batteries, cleaned all of the connections, and took off the negative battery cable where it attaches to the bottom of the engine block and cleaned it and put it back together. It worked PERFECTLY. (Thanks again BTW!!)

Until this year... same thing happened. I figured it's been a year, maybe corrosion has built up again and all of the connections need to be cleaned.

I waited a little longer than I should have to actually do it, since I knew (thought I knew) what the problem was.

Well, a week into it (just been turning OD off...) The engine throws P0341 (Cam Shaft Position Sensor). Three miles after that, the Tachometer is reading zero. A mile after that, the engine can barely run.

I get home, take off all the battery cables and clean everything just like last time, and it works like a charm. OBDII scan checks out, Tach is back, OD is working, engine is running perfectly. Drive it about 20 miles to test, still perfect.

This morning, on the way to work (10 miles into the trip), the light comes back on, and it's giving a P0341 code again. Tachometer goes to zero, engine sputtering a bit, but still running.

I pull over, clear the code, and the tach comes back and the engine runs fine.

20 miles later it comes back.

This time, it clears, and then comes IMMEDIATELY back.

SO: My questions are these...

1) Am I on the right track with checking the grounds, and are there more that I should check?

2) If it's actually a bad sensor... why would cleaning all the grounds (or clearing the code, for that matter) have brought it back, temporarily? Was it just "on its way out" and working intermittently, and now it's "all the way out"?

3) Can the sensors be damaged by operating for a prolonged period with bad grounding? That is, did waiting to resolve the smaller problem result in a larger one?

4) Does the tachometer actually rely on the signal from the Cam Position Sensor, or are those going to be two separate issues?

5) Does it make sense at this point to buy and install a new Cam Position Sensor, or are there other things that I could/should do to troubleshoot?

Any help greatly appreciated, thanks!!!
__________________
_____________________________________________
'01 Ram 2500 5.9l CTD
MBRP 4" Exhaust / Edge Juice w/ Attitude
AirDog 150 / K&N Intake / TransferFlow 75gal aux.
n0ekt is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 09-28-2010, 06:25 AM   #2
sstockton
Senior Member
 
sstockton's Avatar
 
Join Date: Jan 2009
Posts: 3,513
Points: 30,984
Thanks: 3
Thanked 63 Times in 59 Posts
The CMP sensors do fail from time to time, in the same fashion that the CKP fails on the older model trucks. CKP being the crank position sensor, which was on 98 and 99 models and 2000's had both CMP and CKP. Anyways when my CKP failed on my truck, I had a similar thing, the truck wouldn't run right, the tach would die etc... I never tried cleaning the grounds, however, If I cleared the codes, it would run fine for a while, sometimes a week, sometimes less than an hour. Also, sometimes the tach would go away for several seconds at a time and the truck would run rough, and sometimes, it would just hiccup. All this equates to is yes they do fail, and they won't necessarily, and in most cases don't, just completely die. But the signal will get weak or intermittent, and the tach is tied to it as well.
Sean
__________________
2000 2500 reg. cab 4x4 auto 577hp
09 6.7L QC LB stick, 4x4.

TOTAL PERFORMANCE DIESEL 707-545-FUEL (3835)
www.totalperformancediesel.com
sstockton is offline   Reply With Quote
Old 09-29-2010, 07:20 PM   #3
n0ekt
Junior Member
Threadstarter
 
Join Date: Apr 2009
Location: CA
Posts: 12
Points: 597
Thanks: 5
Thanked 0 Times in 0 Posts
Sean -

Thanks for the reply... in the end, you were right, the sensor was going out. The grounds (and cleaning them) had some temporary effect on the code being thrown, but yeah, it needed to be replaced. No trouble since.

Replacing that thing was a riiiiiiiidiculously tight squeeze though.
__________________
_____________________________________________
'01 Ram 2500 5.9l CTD
MBRP 4" Exhaust / Edge Juice w/ Attitude
AirDog 150 / K&N Intake / TransferFlow 75gal aux.
n0ekt is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply


Thread Tools
Display Modes

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
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Cam Position Sensor.... BlackMax Canada 5.9L Cummins (1998.5-2002) 4 01-21-2008 08:05 PM
crankshaft position sensor Jamison 5.9L Cummins (1998.5-2002) 4 11-02-2007 04:24 PM
Cam position sensor Super 05 2003-2007 6.0L Power Stroke 1 07-02-2007 03:08 PM
Cam Position Sensor ???? imported_99powerstroke 1994-2003 7.3L Power Stroke 11 08-08-2006 12:30 AM
Cam Position Sensor ?'s Fantom3993 1994-2003 7.3L Power Stroke 11 03-24-2006 03:13 PM

New To Site? Need Help? TDG Specials

All times are GMT. The time now is 08:48 AM.



Powered by vBulletin®
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
DTO Garage vBulletin Plugins by Drive Thru Online, Inc.
vB.Sponsors
vBCredits v1.4 Copyright ©2007 - 2008, PixelFX Studios