Thanks for your suggestions. Jeep now fixed!
Signal from crank sensor was dropping of when engine died, sigal then came back when it would stary.
New sensor fited but what u pain in the arse as its located behind the turbo!
| LOST JEEPS http://www.lostjeeps.com/forum/phpBB3/ |
|
| 2.5 CRD cutting out http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=5&t=74456 |
Page 1 of 1 |
| Author: | keef [ Mon Mar 11, 2013 11:40 am ] |
| Post subject: | 2.5 CRD cutting out |
I have a Cherokee (UK) 2.5 CRD that just cuts out and wont restart until 10, 15 0r 20 mins later. Initially it was more intermittent and seemed to always die as I was backing of the throttle. It will now die after 10 -15 mins idling on the drive. If you try to restart it straight away in will turn over but not fire, leave it for 10 -20 mins and it will start up. It’s been into a local garage (who I trust) and it shows no error codes past or present. It’s also had a new fuel filter and head fitted but to no avail. Any ideas? |
|
| Author: | Hexus [ Mon Mar 11, 2013 1:32 pm ] |
| Post subject: | Re: 2.5 CRD cutting out |
Injector or air in the line, vapor locked. |
|
| Author: | flman [ Mon Mar 11, 2013 2:05 pm ] |
| Post subject: | Re: 2.5 CRD cutting out |
Did you pump the fuel head to see if the primer firms up? |
|
| Author: | kjjet [ Mon Mar 11, 2013 4:01 pm ] |
| Post subject: | Re: 2.5 CRD cutting out |
Sound like air in fuel. Check the filter for tightness? Replace if needed. Check the hoses at the fuel head, the clamps cut into them. Trim the hose as needed. Pump and bleed the fuel system. As long as your sure you have no leaks, Also try placing the outlet (blowing side) of a dry/wet vac to the fuel tank with a rag to seal and open the bleeder. Fuel should run out with no air. I have never done this but it was posted. I think its a great idea. |
|
| Author: | papaindigo [ Mon Mar 11, 2013 4:29 pm ] |
| Post subject: | Re: 2.5 CRD cutting out |
Bleeding the fuel head is always a good starting point but keef says the fuel head and filter are new and the problem did not go away. While I'm not sure I understand "It will now die after 10 -15 mins idling on the drive" (that US vs UK english language thing I imagine) I note the comment about it dieing when backing off the throttle combined with a wait of 10-20 minutes for a restart which implies this happens on an engine that's at operating temperature. That suggests to me a possible heat induced sensor problem that goes away when things cool down. There are at least 2 posts (viewtopic.php?f=5&t=64199&start=80 and viewtopic.php?f=5&t=66905) about similar problems that were traced to heat impact on the crank position sensor. A quick glance at 2.5L CRD FSM stuff on Sir Sam's NOOB site indicates that this sensor is on the 2.5L engine. Worth checking as the diagnosis test is a pretty simply one. |
|
| Author: | GreenDieselEngineering [ Tue Mar 12, 2013 9:01 am ] |
| Post subject: | Re: 2.5 CRD cutting out |
It could also be a hot restart issue due to a failing crank position sensor. |
|
| Author: | keef [ Thu Apr 18, 2013 9:26 am ] |
| Post subject: | Re: 2.5 CRD cutting out |
| Thanks for your suggestions. Jeep now fixed! Signal from crank sensor was dropping of when engine died, sigal then came back when it would stary. New sensor fited but what u pain in the arse as its located behind the turbo! |
|
| Author: | jinstall [ Tue Apr 23, 2013 3:50 pm ] |
| Post subject: | Re: 2.5 CRD cutting out |
This actually sounds like the issue I have been having. Sometime will not restart or will die while driving. Dealer wants me to throw $2500 in wireharness at it and see if it will fix the problem. |
|
| Author: | CATCRD [ Tue Apr 23, 2013 10:43 pm ] |
| Post subject: | Re: 2.5 CRD cutting out |
jinstall wrote: This actually sounds like the issue I have been having. Sometime will not restart or will die while driving. Dealer wants me to throw $2500 in wireharness at it and see if it will fix the problem. Take the sensor out and do the hair dryer test on it. If the resistance skyrockets when it gets hot, it's shot. |
|
| Page 1 of 1 | All times are UTC - 5 hours [ DST ] |
| Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group http://www.phpbb.com/ |
|