Jeep 2.7 CRD won't start - AUSJEEPOFFROAD.COM Jeep News Australia and New Zealand


Go Back   AUSJEEPOFFROAD.COM Jeep News Australia and New Zealand > JEEP GARAGE > ZJ WJ WG Grand Cherokee


Portal Register Forums Trading Your Jeep New Garage Mark All Read

Post New Thread  Reply
 
Thread Tools Search this Thread
  #1  
Old 24-10-2015
Tims_Jeep's Avatar
Tims_Jeep  Tims_Jeep is offline
CrawlerStar
 
Join Date: Mar 2006
Location: Blue Mountains, Australia
Age: 35
Posts: 411
What Jeep do I drive?: XJ
Likes: 5
Liked 2 Times in 2 Posts
Default Jeep 2.7 CRD won't start

Let me preface this with I'm painfully aware I bought a lemon.

Last week we had a fair amount of rain overnight, I went to start the Jeep in the morning and... Nothing... Most of the dash lights illuminate and the chimes work but it won't crank and the glow plug light doesn't come on. I winched it out of the way and took the XJ to work, by the time I got home in the evening the CRD was back to playing nice.

Last night it rained overnight again, I didn't think anything of it and changed the fuel filter, hoses, and return valve, primed it and... Yep, nothing... Same symptoms except it has a high pitch sound coming from the back of the engine bay whenever the battery is connected, if I remove the "Fuel Control" fuse from the fuse box the noise stops, but the Jeep still won't crank.

Battery voltage is good, 12.6V but to be sure I put it on charge, came back and it's the same. Ran through the fuses I thought might be related and they all look OK, swapped the relay for the starter. I'd be pointing at the starter motor except that the glow plugs light doesn't come on and the noise. The Jeep won't display error codes using the key.

Next step is to post here and have a look at the FSM. Any thoughts? Seems like water is getting somewhere it shouldn't.

Sponsored Posts
  #2  
Old 25-10-2015
fester's Avatar
fester  fester is offline
No Winching
 
Join Date: Jun 2010
Posts: 3,144
What Jeep do I drive?: WJ
Likes: 82
Liked 299 Times in 243 Posts
Default

Have you had the battery properly load tested at an auto levy !!!
__________________
I got a sweater for Chrissy, nothing wrong with that except I was hoping for a moaner or a screamer.
  #3  
Old 25-10-2015
Tims_Jeep's Avatar
Tims_Jeep  Tims_Jeep is offline
CrawlerStar
 
Join Date: Mar 2006
Location: Blue Mountains, Australia
Age: 35
Posts: 411
What Jeep do I drive?: XJ
Likes: 5
Liked 2 Times in 2 Posts
Default

I haven't had it tested, I'll look at either a temporary swap for my dads (also a WJ CRD) or putting a new one in.

Whenever the battery is connected to the car the ASD relay clicks on, is that normal? I thought with the ASD it would at least crank.
  #4  
Old 28-10-2015
drover's Avatar
drover  drover is offline
SwampDigger
 
Join Date: Apr 2005
Location: Lockyer Valley, QLD
Age: 64
Posts: 3,954
What Jeep do I drive?: WG
Likes: 501
Liked 183 Times in 138 Posts
Default

Cold battery in morning, no go, warmer in arvo and it starts, I'd say battery, when you get it to run turn lights on and try to start it, it should start if the battery is good but sounds like it's stuffed, they demand a battery that is 98% or they pack it in the damn things.
__________________
'04 WG CRD

Your Never Too Old To Learn Something Stupid.
Likes: (1)
Sponsored Posts
  #5  
Old 08-11-2015
Tims_Jeep's Avatar
Tims_Jeep  Tims_Jeep is offline
CrawlerStar
 
Join Date: Mar 2006
Location: Blue Mountains, Australia
Age: 35
Posts: 411
What Jeep do I drive?: XJ
Likes: 5
Liked 2 Times in 2 Posts
Default

I had some time to tinker with the CRD this morning, the goal was to replace the +ve battery connection and charge the battery. While I was in there I figured I'd check the connections on the PCM. Turns out the starter wire is bigger than 00 gauge, so after cutting it off I need to source a 000 gauge lug.

Unbolted the PCM and disconnected it and found... It sloshes... Not impressed, turned it upside down and emptied a fair amount of water onto the driveway, unscrewed it and found another couple of CM water still in there! Fairly confident that I've sourced the problem with starting it after rain, just hope the PCM isn't fried. It's drying in the oven at 40 degrees, I'll report back once it's all back together and I've put the +ve lug back on.

So CRD owners, if your grand won't start after rain it might be worth checking the PCM.
Attached Thumbnails
Click image for larger version

Name:	DSC_0463.jpg
Views:	88
Size:	51.1 KB
ID:	72779   Click image for larger version

Name:	DSC_0461.jpg
Views:	92
Size:	61.2 KB
ID:	72780  
  #6  
Old 08-11-2015
bodgie's Avatar
bodgie  bodgie is offline
Lowranger Shocker
 
Join Date: Aug 2009
Location: Castle Hill, NSW
Posts: 1,527
What Jeep do I drive?: WG
Likes: 1
Liked 152 Times in 120 Posts
Default

Quote:
Originally Posted by Tims_Jeep View Post
Unbolted the PCM and disconnected it and found... It sloshes... Not impressed, turned it upside down and emptied a fair amount of water onto the driveway, unscrewed it and found another couple of CM water still in there! Fairly confident that I've sourced the problem with starting it after rain, just hope the PCM isn't fried. It's drying in the oven at 40 degrees, I'll report back once it's all back together and I've put the +ve lug back on.

So CRD owners, if your grand won't start after rain it might be worth checking the PCM.

That would explain a lot. I wonder where it is entering the box, an obvious signs of where it may be leaking?

Jason
Sponsored Posts
  #7  
Old 08-11-2015
Tims_Jeep's Avatar
Tims_Jeep  Tims_Jeep is offline
CrawlerStar
 
Join Date: Mar 2006
Location: Blue Mountains, Australia
Age: 35
Posts: 411
What Jeep do I drive?: XJ
Likes: 5
Liked 2 Times in 2 Posts
Default

It has a hole in it at the opposite end to the electrical plug that is supposed to be plugged with a rubber grommet, my guess is through there because the rest of it was pretty tightly sealed. Looks like one of the ICs has a pin corroded through, not good but maybe that pin is optional...
  #8  
Old 08-11-2015
fester's Avatar
fester  fester is offline
No Winching
 
Join Date: Jun 2010
Posts: 3,144
What Jeep do I drive?: WJ
Likes: 82
Liked 299 Times in 243 Posts
Default

Being high up in the corner how is even enough water getting up there to get into it in the first place.
__________________
I got a sweater for Chrissy, nothing wrong with that except I was hoping for a moaner or a screamer.
Post New Thread  Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

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 On


» Advertisements_AS2




Powered by vBadvanced CMPS v3.2.3



All times are GMT +10. The time now is 05:19 PM.




AJOR does not vouch for or warrant the accuracy, completeness or usefulness of any message, and are not responsible for the contents of any message. The messages express the views of the author of the message, not necessarily the views of AJOR or any entity associated with AJOR, nor should any advice be substituted as technical advice replacing that of a mechanic. You agree, through your use of this service, that you will not use AJOR to post any material which is knowingly false and/or defamatory, inaccurate, abusive, vulgar, hateful, harassing, obscene, profane, sexually oriented, threatening, invasive of a person's privacy, religious, political or otherwise violative of any law. You agree not to post any copyrighted material unless the copyright is owned by you or by AJOR. The owner, administrators and moderators of AJOR reserve the right to delete any message or members for any or no reason whatsoever. You remain solely responsible for the content of your messages, and you agree to indemnify and hold harmless AJOR, the administrators, moderators, and their agents with respect to any claim based upon transmission of your message(s). The use of profile signatures to intentionally mislead or misdirect any member on this forum is not acceptable and may result in your account being suspended. Any trip that is organised through the AJOR forum is participated at your own risk. If you or your vehicle is damaged it is your responsibility, not that of the person that posted the thread, message or topic initiating the trip, nor the organisers of AJOR or moderators of any specific forum. This forum and associated website is the property of AJOR.





Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2018, vBulletin Solutions, Inc.

AJOR 2002 - 2018 AUSJEEPOFFROAD.COM. All corporate trademarked names and logos are property of their respective owners. Ausjeepoffroad is in no way associated with DaimlerChrysler Corporation or Fiat Jeep.
www.midlifemate.com wayalife.com jkwrangler.com ausjeepforum.com jk-forum.com canadianjeepoffroad.com cryptoprofitcalculator.net
vB Ad Management by =RedTyger=