My 2004 2.7 CRD has developed a strange starting problem...
Yesterday morning, it kicked over as usual (about half a second of cranking then fire-in-the-hole) but it only ran for less than a second and stopped. Tried to restart - no dice. Pulled out my phone, started monitoring fuel rail pressure and tried again. As I cranked, I could see the pressure climbing, so I kept cranking for about 5-10 seconds and it started.
Drove to work - normal. Parked for about 8 hours - normal restart. Went out last night for about 3 hours - started normally both at home and the venue. Went to drive to work this morning - same problem as yesterday.
Does anybody else have a teenage Jeep - doesn't do mornings?
I'm figuring it has a slow air leak somewhere between the LP pump and the tank. Thinking it through, how do you actually find it, or is it a matter of throwing random o-rings at it until it stops? What are the most likely suspects?
There are so many places:
- Fuel filter bleed screw
- Water in fuel sensor
- Fuel filter drain valve
- Fuel filter outled
- LP pump inlet
- Vacuum priming valve
- Cold fuel valve on top of the filter
I've always thought the cold fuel valve looks dodgy. Are the part numbers below correct?
MB A611 078 02 49