CrankShaft Position Sensor - Check Engine Light - JeepForum.com
Search  
Sign Up   Today's Posts
User: Pass: Remember?
Advertise Here
Jeep Home Jeep Forum Jeep Classifieds Jeep Registry JeepSpace Jeep Reviews Jeep Gallery Jeep Clubs Jeep Groups Jeep Videos Jeep Events Jeep Articles
Go Back JeepForum.com > Models > Jeep Compass & Patriot Forum > CrankShaft Position Sensor - Check Engine Light

ANOTHER Rockridge4wd Creation!! Spare Tire Carrier Delete The Jeep Forum Discount is ON!The Original 3/8" Ruffstuff Diff Cover!

Reply
Unread 09-26-2012, 11:13 AM   #1
hp2point0
Registered User
 
Join Date: Sep 2012
Location: Millville, NJ
Posts: 1
CrankShaft Position Sensor - Check Engine Light

I have a 2007 Jeep Compass. The past few months I have had a few issues with it. When accelerating the car seems sluggish. It would jerk and then it would ride pretty smooth once reaching around 30 mph. The check engine light also came on. This seems to happen more when the air-conditioning is on. Yesterday I was accelerating and around 15-20 mph there was a big jerk and the car would not go above 20 mph without the RPM's going into the red. The Check engine light started to blink. I turned the car off for about 3 min then started it again. Check engine light still blinking. I started to acceleration very gently and it seemed fine but I know there still must be a problem. Plugged in and got Codes for a missfire and Crank Shaft Position Senor. Reading other pages it looks like this sensor is fairly easy to replace but some sights say for the (4WD) AWD 2.4 engines that the Power Transfer Unit has the be taken out. Not to sure if that is something intense or not. Has anyone done this replacement on a 2.4 Engine?

hp2point0 is offline   Reply With Quote Quick reply to this message
Unread 09-27-2012, 06:54 AM   #2
Gramps
The Necessary Evil
 
Gramps's Avatar
2007 MK Compass 
 
Join Date: Aug 2006
Location: Madison/Janesville, Wisconsin
Posts: 5,624
We've only had one other thread on this issue and the OP didn't come back with any further info.

http://www.jeepforum.com/forum/f98/c...ensor-1333085/
__________________
Bob

Artificial intelligence is no substitute for natural stupidity

MK Skid Plate fasteners for sale posts 68 & 69

Also visit me at Photobucket
'06 WK Grand Cherokee Limited Quadra-Drive II, 5.7
'07 MK Compass Limited 4X4, AutoStick
Gramps is offline   Reply With Quote Quick reply to this message
Unread 01-26-2015, 03:24 PM   #3
chetzar
Registered User
1994 ZJ 
 
Join Date: Sep 2007
Location: Bloomington, Illinois
Posts: 143
Because I LOVE reviving super dead threads, my sisters Compass at 104k just started having this issue. I'm gonna replace the sensor and will report back, and try to snap a few pics as I go.
chetzar is offline   Reply With Quote Quick reply to this message
Unread 02-10-2015, 10:49 PM   #4
chetzar
Registered User
1994 ZJ 
 
Join Date: Sep 2007
Location: Bloomington, Illinois
Posts: 143
Sorry for the delayed response, replaced the sensor (with a MOPAR sensor); its not to difficult, the problem lies in clearing the code, the relearn procedure I have found for the CPS is as follows:
1. Clear the Code
2. Accelerate the vehicle to 70 mph, then coast to 40 mph.
3. CPS should have learned the position of the crank, code should not come back.

The problem I have is, I clear the code and it comes right back, even after the relearn procedure.
chetzar is offline   Reply With Quote Quick reply to this message
Unread 02-12-2015, 04:04 PM   #5
Hondatrix
Registered User
 
Join Date: Apr 2014
Posts: 64
Check wiring to sensor..
Hondatrix is offline   Reply With Quote Quick reply to this message
Unread 02-12-2015, 06:16 PM   #6
kadetklapp
Registered User
1997 XJ Cherokee 
 
Join Date: May 2008
Location: Indiana
Posts: 1,341
How bad was the actual replacement procedure? What all had to come out? The 4wd model is hell I hear.


As far as clearing the code, I'm sure you did, but to be sure, did you disconnect the battery for a while? That should reset in my experience.
__________________
**1997 Jeep Cherokee SE**
Former Police Car

2008 "Jeep" Patriot <-----Crap.
kadetklapp is offline   Reply With Quote Quick reply to this message
Unread 02-12-2015, 09:42 PM   #7
chetzar
Registered User
1994 ZJ 
 
Join Date: Sep 2007
Location: Bloomington, Illinois
Posts: 143
The model I did it on was a 4wd, it only took about an hour; you need to take off the heat shield (3 bolts), air box (taking the air box off helps a TON), blindly find the hole to put the crank sensor back in, then put it all back together. I did disconnect the battery, but I'm going to try disconnecting the battery and doing the re-learn procedure again this weekend.
chetzar is offline   Reply With Quote Quick reply to this message
Unread 02-13-2015, 10:45 AM   #8
kadetklapp
Registered User
1997 XJ Cherokee 
 
Join Date: May 2008
Location: Indiana
Posts: 1,341
So the rumor about having to pull the PTU and the front right CV shaft is a myth then.. Gotta love the dealer.
__________________
**1997 Jeep Cherokee SE**
Former Police Car

2008 "Jeep" Patriot <-----Crap.
kadetklapp is offline   Reply With Quote Quick reply to this message
Unread 02-23-2015, 03:00 PM   #9
chetzar
Registered User
1994 ZJ 
 
Join Date: Sep 2007
Location: Bloomington, Illinois
Posts: 143
Disconnected the battery, did the relearn process again, no more engine code for the Crank Position Sensor.
chetzar is offline   Reply With Quote Quick reply to this message
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the JeepForum.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.
Note: All free e-mails have been banned due to mis-use. (Yahoo, Gmail, Hotmail, etc.)
Don't have a non-free e-mail address? Click here for a solution: Manual Account Creation
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.


Thread Tools


Suggested Threads





Jeep, Wrangler, Cherokee, Grand Cherokee, and other models are copyrighted and trademarked to Jeep/Chrysler Corporation. JeepForum.com is not in any way associated with Jeep or the Chrysler Corp.