cam position sensor - Jeep Wrangler Forum
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > TJ Jeep Wrangler Forum > TJ Tech Forum

Join Wrangler Forum Today


Reply
 
Thread Tools

Please support our sponsors and let them know you heard about them on WranglerForum.com
Old 06-25-2008, 07:31 PM   #1
Jeeper
 
S.Ga.Rider's Avatar
 
Join Date: Jun 2008
Location: Georgia
Posts: 31
cam position sensor

Why would you get a tick out the cps? I have a loud tap when cold. I can cover the cps with my hand and it changes tones, you can also feel it tapping. What would cause it and is it hard to replace?

S.Ga.Rider is offline   Quote Quick Reply
Old 06-25-2008, 08:00 PM   #2
Knows a couple things...

WF Supporting Member
 
Jerry Bransford's Avatar
 
Join Date: Nov 2005
Location: Escondido, Calif.
Posts: 29,276
Images: 2
The CPS shouldn't make any noise at all. Perhaps the noise is just traveling up the shaft from the engine into the CPS enclosure. You're talking about the CPS that is located atop the distributor shaft?

__________________
When you have a choice, buy American.

Jerry Bransford is offline   Quote Quick Reply
Old 06-25-2008, 08:28 PM   #3
Jeeper
 
S.Ga.Rider's Avatar
 
Join Date: Jun 2008
Location: Georgia
Posts: 31
This is it. You can feel it tapping in the sensor and whatever that is below it. Its an 02. I was told on another forum to take the sensor out and check to see if the shaft below had any play. If so I would need to replace it too.
Do you just unbolt the sensor and pull it off then the opposite to reinstall? I have never messed with one.
Attached Thumbnails
Click image for larger version

Name:	IMG_0108 (Small).JPG
Views:	4
Size:	39.6 KB
ID:	4290  
S.Ga.Rider is offline   Quote Quick Reply
Old 06-25-2008, 09:34 PM   #4
Jeeper
 
Join Date: Sep 2006
Location: pahrump Nevada
Posts: 1,241
a couple of years ago mine started to tap you could here it I replaced the sensor on top but it still taped so I replaced the whole shaft
sometimes you can get a little play in the shaft it will tap

to replace is a little more then just unbolting it and pulling it out
if you dont get the new one back in just right the fuel injectors wont fire right
but its pretty easy as long as you follow the right steps
mr4x4 is offline   Quote Quick Reply
Old 06-26-2008, 06:43 AM   #5
Jeeper
 
S.Ga.Rider's Avatar
 
Join Date: Jun 2008
Location: Georgia
Posts: 31
What are the right steps? Is there a right up somewhere on how to replace it? I was going to pull it today and check the shaft.
What do you have to do to replace the shaft. Its tapping really loud and is getting embarrassing. Im going to stop at advanced today to see if they have a repair manual also so I can stop asking all these questions. lol I do appreciate the help though.
S.Ga.Rider is offline   Quote Quick Reply
Old 06-26-2008, 01:20 PM   #6
Jeeper
 
Join Date: Sep 2006
Location: pahrump Nevada
Posts: 1,241
Quote:
Originally Posted by S.Ga.Rider View Post
What are the right steps? Is there a right up somewhere on how to replace it? I was going to pull it today and check the shaft.
What do you have to do to replace the shaft. Its tapping really loud and is getting embarrassing. Im going to stop at advanced today to see if they have a repair manual also so I can stop asking all these questions. lol I do appreciate the help though.
you must replace the whole shaft

when you remove the the cam sensor you will see a half circle peice of metal in there mark it so when you put it back it it is facing the same way
it kinda a little short cut

it it doesnt fire up when you put it all back togetheryou might have to turn the oil gear shaft thingy ( kinda like setting the timing)
just make sure you put it back together the same way it came out and you should be fine

I picked up two of thos shafts on ebay for $30 all together they were used out of a wrecked tj
out off the two one of them had a tighter shaft

heres a pick of one removed with out the cam sensor
Attached Thumbnails
Click image for larger version

Name:	random 009.jpg
Views:	4
Size:	91.1 KB
ID:	4295   Click image for larger version

Name:	random 010.jpg
Views:	4
Size:	92.9 KB
ID:	4296  

mr4x4 is offline   Quote Quick Reply
Old 06-26-2008, 09:12 PM   #7
Jeeper
 
S.Ga.Rider's Avatar
 
Join Date: Jun 2008
Location: Georgia
Posts: 31
The dealer looked at it and gave me a price of $250 installed for the sensor and shaft. They said the timing had to be reset and if your not careful you could burn a piston. If its that touchy I may let them do it.
S.Ga.Rider is offline   Quote Quick Reply
Old 06-26-2008, 11:12 PM   #8
Jeeper
 
4.0l sahara's Avatar
 
Join Date: Apr 2007
Location: shelton,ct
Posts: 2,228
it's not that hard they just want to make some$$$
__________________
99 sahara
4.0/np231/ax15/d30/d35
flowmaster40,hpd30 with aussie locker,currie upper joints,4.88's, lca skids,chromo shafts,vanco brakes,d35 with super 35 and arb locker,re 4.5" springs,currie arms,re front uppers,Re shocks in back,walkerevens shocks up front, Re track bars with currie jj joints,anti rock,ss brake lines,re rear sway bar links,jks 1.25" bl and mml,bfg 35x12.5 km2's,craiger soft 8's,ome steering stabilizer,currie hd steering,rockmen front bumper,emp tank skid,lots more too.
4.0l sahara is offline   Quote Quick Reply
Old 06-26-2008, 11:32 PM   #9
Jeeper
 
Join Date: Sep 2006
Location: pahrump Nevada
Posts: 1,241
Quote:
Originally Posted by S.Ga.Rider View Post
The dealer looked at it and gave me a price of $250 installed for the sensor and shaft. They said the timing had to be reset and if your not careful you could burn a piston. If its that touchy I may let them do it.

that has nothing to do with timing but it does have to be in a certain spot for the injecters to fire right
you can do what I did I installed mine it started up just fine and I took it to a friend of mine and hade them hook it to the computer and check the position
I was only off by 1 degree and it took 5 min to check it

it took me 1 hour to install it
it does help if you look up the hanes book it tells you how to replace it
but recomends you take it to a mechanic

when I changed mine I thought of it like changing a distributer
in an older jeep (or car)
mr4x4 is offline   Quote Quick Reply
Old 06-28-2008, 09:15 AM   #10
Jeeper
 
S.Ga.Rider's Avatar
 
Join Date: Jun 2008
Location: Georgia
Posts: 31
The dealer said I could install it and bring it to them to have the timing adjusted. He said it would be $30 or so. I may pick up a manual and do that.
S.Ga.Rider is offline   Quote Quick Reply
Old 06-28-2008, 01:17 PM   #11
Jeeper
 
Join Date: Sep 2006
Location: pahrump Nevada
Posts: 1,241
Quote:
Originally Posted by S.Ga.Rider View Post
The dealer said I could install it and bring it to them to have the timing adjusted. He said it would be $30 or so. I may pick up a manual and do that.
that should save you some money for upgrades
mr4x4 is offline   Quote Quick Reply
Old 06-28-2008, 05:49 PM   #12
Jeeper
 
S.Ga.Rider's Avatar
 
Join Date: Jun 2008
Location: Georgia
Posts: 31
This is making no sense. For the first couple of days after I bought it it ticked all the time. I know it was coming from the sensor area. I could feel it with my hand and muffle the sound when I grabbed it. I changed the oil and put some seafoam in then changed the plugs( which now I have a little stumble with) and it hasnt made the taping sound in 2 days now. I may not worry with replacing it if its not going to do it anymore. I am hoping the slight stumble is from the o2 sensor. I put in autolite plugs and made sure they were gapped at .35

S.Ga.Rider is offline   Quote Quick Reply
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Jeep Wrangler Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
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

Posting Rules
You may post new threads
You may 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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
check engine light came on and speedo stopped working @ the same time. eric TJ General Discussion Forum 14 10-14-2013 12:05 PM
HELP...Camshaft Position Sensor replacement Northern_wrangler YJ Tech Forum 2 06-06-2010 10:11 AM
91 2.5L Throttle Position Sensor LTKEE YJ Tech Forum 0 01-13-2009 04:46 PM
Camshaft Position Sensor tenntj04 TJ Tech Forum 12 12-04-2008 10:21 PM
'97 or newer TJ 4.0L Crankshaft Position Sensor (good for a spare too) $50 Jerry Bransford Classifieds Archive 1 02-04-2007 10:31 AM



» Network Links
»Jeep Parts
» Featured Product

All times are GMT -5. The time now is 05:41 AM.



Jeep®, Wrangler, Liberty, Wagoneer, Cherokee, and Grand Cherokee are copyrighted and trademarked to Chrysler Motors LLC.
Wranglerforum.com is not in any way associated with the Chrysler Motors LLC