D2 wont start. Crank Shaft Position sensor? - Land Rover Forums : Land Rover and Range Rover Forum
 1Likes
Reply
 
LinkBack Thread Tools Display Modes
post #1 of 21 (permalink) Old 05-15-2012, 07:09 PM Thread Starter
Member
 
Join Date: Apr 2011
Location: SF Bay Area/Fremont, Ca -> Central Valley/Tracy, Ca
Posts: 28
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
D2 wont start. Crank Shaft Position sensor?

My 2002 D2 intermittently refuses to start. It seems to usually happen after having driven for a bit in the day...I hear the starter cranking strong but it just does not start up.

i have tried on a couple of these occasions holding it cranking for like 45 seconds to no avail....

It seems to do fine in the mornings or after she gets about an hour break from driving about town but mid-day (usually in the middle of shuttling kids from school to various after school sports) she craps out on me.

This truck has 168K miles and I have read here in other posts that the "crank shaft position sensor" is a suspect part that might lead to this....do my symptoms sound like they fit this issue?

Are there other typical parts that fail around this mileage that would cause a starting problem?

Is this a dealership only part or are there reliable sources that are less expensive?


__________________

shawn and kat
2002 Disco SD
pretty much all stock.
sbadams17 is offline  
Sponsored Links
Advertisement
 
post #2 of 21 (permalink) Old 05-16-2012, 01:37 AM
Senior Member
 
saharatj98's Avatar
 
Join Date: Jan 2007
Location: Redmond, Washington USA
Posts: 518
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 5 Post(s)
If it's typically doing this when warm, spray cold water on your coil packs and try it. If it cranks and won't start warm, but does after cooling down the coils than that's your problem. CPS can also do goofy things. Unfortunately, checking for tach bounce while cranking does not work on these since the pick-up is in the alternator. I can't remember, but I think the check engine light will go off while cranking if the cps is bad. It's not a bad job to change out and probably a good thing to change out anyway at your mileage. I just replaced the one in my 96, took maybe 15 minutes. It's just above the oil pan on the driver's side (LHD) facing rearward into the bell housing under a cover. Two 7mm screws. It is possible to remove it with a 1/4 drive ratchet and short extension and just clear the exhuast downpipe.

1996 Disco XD 1996 Trek #4 and Camel Trophy Team USA Selections 1997
2003 Disco SE7 expedition prepped
1998 Disco LSE 7 50th Anniversary Baluga Black
1987 Defender 110 300tdi/R380
1969 Series 2A 109
Pacific Coast Rover Club
Redmond, Washington

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
saharatj98 is offline  
post #3 of 21 (permalink) Old 05-25-2012, 05:13 PM Thread Starter
Member
 
Join Date: Apr 2011
Location: SF Bay Area/Fremont, Ca -> Central Valley/Tracy, Ca
Posts: 28
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
it looks like the coil pack is pretty well burried in the back of the engine compartment. Is there any risk or haard to getting that all wet back there? If that is the issue, how much labor is involved in swapping out the coil pack?

I took it to the local independent LR shop where they read the codes: P1884, P1590, and P0102.

They said that P0102 was "airflow signal voltage low" and recommended that I replace the airflow sensor. They did that and threw in a new air filter as well.

I drove home from the shop (which was about a 40 minute drive) and when I got home the truck was nice and warm and again would not start. When I called the shop this time the mechanic is now saying that there is most likely a fuel pump/fuel pressure issue.

__________________

shawn and kat
2002 Disco SD
pretty much all stock.

Last edited by sbadams17; 05-25-2012 at 06:08 PM. Reason: incomplete
sbadams17 is offline  
 
post #4 of 21 (permalink) Old 05-25-2012, 06:23 PM
Senior Member
 
Join Date: Feb 2012
Posts: 146
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Sounds like cps to me you will need 7&8 mm sockets . Don't think it would be coils you have two . Can't believe it would be both . If you do replace them don't forget the plenum gasket & you would be crazy not to change your plug wires . Check the forum thats who to get the deals from.
Blamo is offline  
post #5 of 21 (permalink) Old 05-25-2012, 06:23 PM
Senior Member
 
Join Date: Sep 2004
Location: Churubusco, IN
Posts: 4,757
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 11 Post(s)
Quote:
Originally Posted by saharatj98 View Post
Unfortunately, checking for tach bounce while cranking does not work on these since the pick-up is in the alternator.
Not on a DII.

We don't even know if it has spark or fuel.

Cue the Waylon and Willie!

Got spark? Got fuel?

Don't go back to a shop that sells you parts and then surmises what's wrong, go to one where they know WTF they are doing and can explain their troubleshooting/diag to you.

I'd rather spend ten minutes on the phone teaching someone to diagnose their truck than sell a part they don't need.

Yes, I am still alive, and still in the Rover parts business.
Text me for greatest likelihood of finding me.

260-804-0458
PTSchram is offline  
post #6 of 21 (permalink) Old 05-25-2012, 07:04 PM
Computer Nerd
 
jafir's Avatar
 
Join Date: May 2010
Location: Arkansas
Posts: 802
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Quote:
Originally Posted by saharatj98 View Post
If it's typically doing this when warm, spray cold water on your coil packs and try it. If it cranks and won't start warm, but does after cooling down the coils than that's your problem. CPS can also do goofy things.
Coils on these have a reputation for being pretty reliable. Crank Position Sensor on the other hand has a reputation for being anything but.

Quote:
Originally Posted by PTSchram View Post
We don't even know if it has spark or fuel.
Yeah. What he said!

____________________________
Jafir

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

2006 LR3 HSE
1987 Ex-MOD 90, 2.5NA

Previous Rovers:
2006 LR3 SE
2003 Discovery S
1999 Discovery II, SE7?
1996 Discovery SE7
jafir is offline  
post #7 of 21 (permalink) Old 05-26-2012, 09:03 AM Thread Starter
Member
 
Join Date: Apr 2011
Location: SF Bay Area/Fremont, Ca -> Central Valley/Tracy, Ca
Posts: 28
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Am I getting spark and fuel? I think so.

When the truck was cold this morning, it fired up beautifully. I am not sure if this can change as it warms up though. That is when it tends to not start.

The sensor seemed cheap enough and the time investment didn't sound major so I just picked up the sensor. I am looking under my truck on the driver's side and I think I should see the cover for it with two nuts somewhere near the catalytic converter... like this:

http://www.landroversonly.com/forums...r-help-ckp.jpg

but I don't see it.

Is this video applicable?

D2 CPS install - YouTube

BTW, my DII is an '02 SE automatic.... I am not sure that makes any difference.

__________________

shawn and kat
2002 Disco SD
pretty much all stock.
sbadams17 is offline  
post #8 of 21 (permalink) Old 05-26-2012, 09:27 AM
Senior Member
 
Join Date: Sep 2004
Location: Churubusco, IN
Posts: 4,757
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 11 Post(s)
Look at the left side of the oil pan, now looks back to the horizontal portion of the oil pan parallel to the axles, now look up. That's it right there.

Yes, I am still alive, and still in the Rover parts business.
Text me for greatest likelihood of finding me.

260-804-0458
PTSchram is offline  
post #9 of 21 (permalink) Old 05-26-2012, 10:10 AM Thread Starter
Member
 
Join Date: Apr 2011
Location: SF Bay Area/Fremont, Ca -> Central Valley/Tracy, Ca
Posts: 28
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Ahhh, I am clearly pretty mechanically retarded.... I was looking in the wrong direction from the exhaust down pipe.

So once I found it, I got the cap and sensor off and put the new one in place but I am having difficulty unplugging the cable of the old sensor. Is it simply supposed to pull straight out or is there a trick to it?

__________________

shawn and kat
2002 Disco SD
pretty much all stock.
sbadams17 is offline  
post #10 of 21 (permalink) Old 05-26-2012, 10:27 AM
Senior Member
 
Join Date: Sep 2004
Location: Churubusco, IN
Posts: 4,757
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 11 Post(s)
Well? I spoke with you 15 minutes ago. No status update yet???

Yes, I am still alive, and still in the Rover parts business.
Text me for greatest likelihood of finding me.

260-804-0458
PTSchram is offline  
post #11 of 21 (permalink) Old 05-26-2012, 11:22 AM
Computer Nerd
 
jafir's Avatar
 
Join Date: May 2010
Location: Arkansas
Posts: 802
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Quote:
Originally Posted by PTSchram View Post
Well? I spoke with you 15 minutes ago. No status update yet???
He's probable stuck under the car with his arm pinned up against exhaust pipe.
Stender Dave likes this.

____________________________
Jafir

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

2006 LR3 HSE
1987 Ex-MOD 90, 2.5NA

Previous Rovers:
2006 LR3 SE
2003 Discovery S
1999 Discovery II, SE7?
1996 Discovery SE7
jafir is offline  
post #12 of 21 (permalink) Old 05-26-2012, 11:50 AM Thread Starter
Member
 
Join Date: Apr 2011
Location: SF Bay Area/Fremont, Ca -> Central Valley/Tracy, Ca
Posts: 28
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks PT! now that I got my arm unwedged from the exhaust, it's is miraculously up and running again. I think it will be an hour or so before we will see if this fixes the starting issue when it is warm.


Sent from my SCH-I800 using AutoGuide.Com Free App

__________________

shawn and kat
2002 Disco SD
pretty much all stock.
sbadams17 is offline  
post #13 of 21 (permalink) Old 05-26-2012, 12:09 PM
Senior Member
 
Join Date: Sep 2004
Location: Churubusco, IN
Posts: 4,757
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 11 Post(s)
Quote:
Originally Posted by sbadams17 View Post
Thanks PT! now that I got my arm unwedged from the exhaust, it's is miraculously up and running again. I think it will be an hour or so before we will see if this fixes the starting issue when it is warm.


Sent from my SCH-I800 using AutoGuide.Com Free App
I take it my coat hanger idea didn't work too well for you then, eh?

Yes, I am still alive, and still in the Rover parts business.
Text me for greatest likelihood of finding me.

260-804-0458
PTSchram is offline  
post #14 of 21 (permalink) Old 05-26-2012, 12:24 PM Thread Starter
Member
 
Join Date: Apr 2011
Location: SF Bay Area/Fremont, Ca -> Central Valley/Tracy, Ca
Posts: 28
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Yeah, I'm just kidding about getting stuck in the exhaust. It worked great. If I ever have to do it again I'll be able to knock it out like a pro.

I had read it could be done with the exhaust in place but dropping the exhaust makes a big difference in the frustration level of the job too.

Sent from my SCH-I800 using AutoGuide.Com Free App

__________________

shawn and kat
2002 Disco SD
pretty much all stock.
sbadams17 is offline  
post #15 of 21 (permalink) Old 05-26-2012, 12:38 PM
Senior Member
 
2003discoII's Avatar
 
Join Date: Jul 2009
Location: Tracy,Ca
Posts: 518
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
and now i know where that cover i found laying under my disco one day is from

2003 disco. exhaust mod,265/65r18
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
2003discoII is offline  
Sponsored Links
Advertisement
 
Reply

  Land Rover Forums : Land Rover and Range Rover Forum > Land Rover Model Forums > Discovery Series II

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Land Rover Forums : Land Rover and Range Rover 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:
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:
OR

Log-in











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
User Tag List

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
Crank shaft sensor replaced engine won't start? Irish4x4 Discovery Series II 6 10-16-2011 11:47 PM
Crank Shaft Position Sensor upfifties Discovery Series II 4 08-13-2011 07:16 PM
land rover discovery 2 new crank shaft position sensor still wont work PUFFE664 Discovery Series II 3 03-30-2010 01:15 PM
Crank Angle Sensor same as Crankshaft Position Sensor ? DiscoIIDenver Discovery Series II 2 12-27-2008 06:17 PM
crank position sensor wimp Discovery Series II 2 12-01-2008 05:39 PM

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 On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome