Engine stalls when reaching running temp - 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 Grand Cherokee & Commander Forums > WJ Grand Cherokee Forum > Engine stalls when reaching running temp

Stainless Steel Door Hinge PinsPoly Door Hinge BushingsLabor Day Sale!

Reply
Unread 12-06-2012, 05:07 AM   #1
djdan
Registered User
1999 WJ 
 
Join Date: Dec 2012
Location: canvey island, essex / England
Posts: 11
Engine stalls when reaching running temp

Hi All,

Would like some help i have a grand cherokee 4.7 v8 and it stalls when it reaches running temp and wont re-start till cooled down i have changed the crank positioning sensor and ecu but still same problem. two weeks before the problem the rad had a leak.

any help would be good as i need the car back on the road.

Dan

djdan is offline   Reply With Quote
Unread 12-06-2012, 09:35 AM   #2
MadderThanMax
Registered User
2001  
 
Join Date: Oct 2011
Location: Glasgow, Scotland
Posts: 1,585
Might Be... A temp Sender! I've had that once before on another brand of car, where the sender sent the message that it was over heating when it clearly wasn't and shut the engine down...
MadderThanMax is offline   Reply With Quote
Unread 12-06-2012, 12:36 PM   #3
StigOfTheDump
Registered User
2000 WJ 
 
Join Date: Dec 2012
Location: Jedburgh, Scotland
Posts: 5
2000 wj v8

Had a similar issue 2 nights ago, then it gave up altogether yesterday. After a couple of hours it started again but didn't last long. I was getting a spark and finally managed to dig out the fuel rail test point under all the LPG gear. There was no fuel when I pushed in the pip on the valve. Also I had no current flowing through the fuel pump fuse.

Turned out to be the wire running to the fuel pump (at the tank) which had corroded near the plug just in front of the fuel tank. I made a temporary repair but it was difficult to solder the corroded wires. Fortunately it was on the part that goes though into the cabin under the back seat so I was able to get some slack to work on it. I will get a new plug and remake that bit of harness then splice it in under the seat. I will cover it in a plastic bag or something as it very exposed to the salt.

If any one knows what those 6 way plugs with the red locking tab, similar to the ones on the rear lights are called? or a UK supplier?
StigOfTheDump is offline   Reply With Quote
Unread 12-16-2012, 06:01 AM   #4
djdan
Registered User
1999 WJ 
 
Join Date: Dec 2012
Location: canvey island, essex / England
Posts: 11
I have put a new coolant temp sensor on and looked at fuel wire still same problem with shutting down.

it is just like someone turned the key off. and when you put ignition back on the rpm needle jumps around and fuel pump runs.

totally F**&ed off with it now.

wondering if the alarm system is up the wall.
djdan is offline   Reply With Quote
Unread 12-16-2012, 06:26 AM   #5
MadderThanMax
Registered User
2001  
 
Join Date: Oct 2011
Location: Glasgow, Scotland
Posts: 1,585
Try posting a video up of what happens...
MadderThanMax is offline   Reply With Quote
Unread 12-17-2012, 01:19 AM   #6
deanlad1980
Registered User
2001 WJ 
 
Join Date: Mar 2011
Location: coventry
Posts: 306
Did you use a mopar CPS?
deanlad1980 is offline   Reply With Quote
Unread 12-18-2012, 01:37 AM   #7
djdan
Registered User
1999 WJ 
 
Join Date: Dec 2012
Location: canvey island, essex / England
Posts: 11
Got a new cps from jeep
djdan is offline   Reply With Quote
Unread 12-18-2012, 03:41 AM   #8
Joefreegard
Registered User
 
Join Date: Dec 2012
Location: Saffron walden, Essex
Posts: 12
Engine speed sensor? Not sure about on jeeps but on other cars I've worked on this is something that will happen when the engine speed sensor is gone.
Joefreegard is offline   Reply With Quote
Unread 12-18-2012, 03:48 AM   #9
Joefreegard
Registered User
 
Join Date: Dec 2012
Location: Saffron walden, Essex
Posts: 12
Ok so just read the thread properly lol. I'll get my coat.……
Joefreegard is offline   Reply With Quote
Unread 12-18-2012, 10:40 AM   #10
fosterjd79
Registered User
2004 WJ 
 
Join Date: Apr 2012
Location: Concord, NH
Posts: 867
I had this problem in a different car a few years ago. It ended up being that the cat needed replaced. Same problem, car would start cold but when the cats warmed up all the way it would stall. Couldn't restart until the cats cooled. Temp solution - drill the cats (that's not entirely legal but works).
fosterjd79 is offline   Reply With Quote
Unread 12-18-2012, 10:57 AM   #11
2001WJv8
Registered User
2001 WJ 
 
Join Date: Nov 2008
Location: Raleigh, NC
Posts: 510
get, borrow, rent a fuel pressure gauge - i had a similar issue, though with mine it would start cold fine and ran fine until I shut it down - then it would not start again until the engine was cold again (crank strong but still wouldn't start)

once I checked leakdown and determined there was zero fuel psi right after shutting it down, and only 30psi while running, I figured out my fuel filter/regulator (mopar) had crapped out .... changed the fuel filter and problem solved - correct psi while running, and holds steady long after turning it off
__________________
2001 WJ Laredo- 4x4 V8 QT-II (NV247); Destination AT 265-70/16, JK rims; Addcos F&R; Bilstein's; U/C Springs; Kolak 3" exhaust
2001WJv8 is offline   Reply With Quote
Unread 12-27-2012, 04:47 PM   #12
djdan
Registered User
1999 WJ 
 
Join Date: Dec 2012
Location: canvey island, essex / England
Posts: 11
Thanks for all your help,

I am going through each post and changing one thing at a time.

will keep updating on progress.

Dan
djdan is offline   Reply With Quote
Unread 01-24-2013, 07:42 AM   #13
djdan
Registered User
1999 WJ 
 
Join Date: Dec 2012
Location: canvey island, essex / England
Posts: 11
new exhaust and cat

I have now replaced the exhaust and cat, and put new 02 sensors on as well,
i still have the same problem and error code p0320. i have a video and will try to upload it.
djdan is offline   Reply With Quote
Unread 01-24-2013, 07:58 AM   #14
djdan
Registered User
1999 WJ 
 
Join Date: Dec 2012
Location: canvey island, essex / England
Posts: 11
video of problem

http://www.youtube.com/watch?v=xr9nM...ature=youtu.be

http://www.youtube.com/watch?v=QV4Y-...ature=youtu.be
djdan is offline   Reply With Quote
Unread 01-24-2013, 09:24 AM   #15
sprocket1200
Registered User
2001 WJ 
 
Join Date: Aug 2007
Location: bc canada
Posts: 172
i agree, get a mopar crank position sensor. what brand did you use?
also try cam position sensor since it is so easy to do, atleast on the 4.0.
sprocket1200 is offline   Reply With Quote




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.