ok replaced crank sensor and the car still will not start when hot any ideas ?please
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| crank sensor http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=5&t=69792 |
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| Author: | dave90 [ Tue Jul 31, 2012 6:33 pm ] |
| Post subject: | crank sensor |
hi all i am having trouble getting a crank sensor for my jeep main dealer will not have any in stock for 10 days. anyway i found a shop on ebay but they need a part number it is a 2004 jeep cherokee or liberty 2.5 crd can anyone help many thanks dave.posting.php?mode=post&f=5# |
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| Author: | TJ2 [ Tue Jul 31, 2012 6:56 pm ] |
| Post subject: | Re: crank sensor |
Tonycrd posts here. He and his 2.5 live in Spain. Posting your location would help get you what you need. |
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| Author: | dave90 [ Tue Jul 31, 2012 7:03 pm ] |
| Post subject: | Re: crank sensor |
yes sorry i am in bristol in the uk |
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| Author: | Glend [ Tue Jul 31, 2012 7:17 pm ] |
| Post subject: | Re: crank sensor |
Ring George at VM UK he will be able to supply the sensor. |
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| Author: | dave90 [ Wed Aug 08, 2012 4:45 pm ] |
| Post subject: | Re: crank sensor |
ok i have the part number but now i am being told that there is another number on the sensor ? |
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| Author: | CATCRD [ Fri Aug 10, 2012 7:36 pm ] |
| Post subject: | Re: crank sensor |
dave90 wrote: ok i have the part number but now i am being told that there is another number on the sensor ? I used 5066882AA. What did you find? |
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| Author: | dave90 [ Sat Aug 18, 2012 3:57 pm ] |
| Post subject: | Re: crank sensor |
ok replaced crank sensor and the car still will not start when hot any ideas ?please
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| Author: | msilbernagel [ Sat Aug 18, 2012 10:24 pm ] |
| Post subject: | Re: crank sensor |
Do you have a stock fuel system, or have you added a fuel pump yet? Some just can't get rid of the air-in-fuel problems until they switch to a pressurized fuel system. There's also a device at the end of the fuel rail that releases pressure when it exceeds the max (28k psi or so). If either that valve or an injector is leaking even a little you won't be able to reach sufficient pressure during cranking to let the ECM actually fire the injectors. For the Cummins diesels my fuzzy recollection is that it needed about 4,000PSI before the ECM wouldtrigger the injectors and start the engine. If you can get someone with a DRBIII you may be able to watch the pressure during cranking to see if it's sufficient. Mark |
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| Author: | dave90 [ Sun Aug 19, 2012 3:42 am ] |
| Post subject: | Re: crank sensor |
thanks i will try a pump on it today fingers crossed.i did change the fuel filter head with a different head but still the same.hope the pump will help.i will post later with results thanks |
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| Author: | dave90 [ Sun Aug 19, 2012 6:38 am ] |
| Post subject: | Re: crank sensor |
ok i just tried something to test the fuel pressure solenoid/ pcv i got the engine hot disconnected the small fuel return line then cranked the engine and fuel came out suggesting the valve is not shutting dose this sound correct ?the test suggests that the valve should stay shut until the pressure builds up til the injectors fire then it opens letting excess fuel return to tank. 
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| Author: | msilbernagel [ Sun Aug 19, 2012 1:53 pm ] |
| Post subject: | Re: crank sensor |
I think you'll need to find diagnostic procedures to be sure.. from reading this, some flow can be normal: http://goo.gl/7ditv Note though, if it's taken off the rail and FPR must be replaced as a unit. You cannot re-install, as the knife-edge that seals and the seat form to each other (once only). Mark |
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| Author: | Billwill [ Tue Aug 21, 2012 1:22 pm ] |
| Post subject: | Re: crank sensor |
dave90 wrote: ok replaced crank sensor and the car still will not start when hot any ideas ?please You need to extract some OBDII codes to find out what it is complaining about. Either get the dealers to read/clear the codes or try the 4 times ON/OFF trick of the ignition. Once you have some codes you will narrow down the search.
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| Author: | black dog [ Fri Aug 24, 2012 11:17 pm ] |
| Post subject: | Re: crank sensor |
dave90 wrote: ok replaced crank sensor and the car still will not start when hot any ideas ?please I just replaced a cam pos. Sensor. no problems since |
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| Author: | dave90 [ Sat Aug 25, 2012 9:09 am ] |
| Post subject: | Re: crank sensor |
so did you have the same problem as me ? |
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| Author: | dave90 [ Sat Sep 08, 2012 5:10 am ] |
| Post subject: | Re: crank sensor |
turns out it was a bad injector leaking fuel back. i found this by getting 4 small clear bottles and attaching a tube to each then fixing each tube to the small return on the top of each injector i fixed the bottles to a piece of wood above the engine i then cranked the engine over and found that one bottle was filling up way before the other three . they are not to let anything out until the engine starts .anyway had the injector overhauled and now the car is fine 
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