toyotec wrote:
Cranks but will not start. Bought the jeep in a non running condition. Replaced timing belt/components as well as ALL 16 rocker arms due to damage. I had the intake off, obviously and the fuel system was opened. I CAN get it to start on starting fluid but dies out. I have primed the fuel fliter and purged the air from it. DOUBLE CHECKED WIRE CONNECTIONS FOR SECURITY AND CORRECT PLACEMENT. I HAVE CRANKED THE ENGINE SO MUCH I KILLED THE STARTER, which i will be replacing later today. DO I NEED TO PURGE THE FUEL RAIL??? IF SO HOW IS THIS DONE?? This is my first diesel, I am a good mechanic but apparently I am no Diesel Savvy.its a 2.5 crd,does the 2.5crd need injector coding
Where are you based?
The 2.5 CRD is an Export model...what year is your CRD?
You do need injector coding ie. there is a number on each injector that should be coded into the ECM but this is only to get best consumption...will have no effect on starting up.
Have you checked all fuses under the hood and inside the cabin?
Make sure you have not swapped one of the injector connectors with the fuel pressure sensor plug or MAP plug.
Is the fuel filter new! You should at least have the Raycor Head fitted which is a good thing!
Have you primed the fuel filter head by:
Screwing out the nylon screw at the top of the plunger using a coin or large screwdriver.
Pull up the plunger and pump hard a few times.
Open up the brass 10 mm bolt on the side to let the air/water escape and tighten it up again...this step is left out of the Service Manual!
Repeat the above a few times.
You can fit a section of clear plastic tubing on the input and output of the fuel filter head to see if there is fuel flowing without any air bubbles.
The early CRDs...which means the 2.5 Export model...has an amber "Key" icon light up on the dash for a few seconds when ignition is turned ON...if the SKIS anti-theft system is installed.
This icon needs to go out after a few seconds and must not flash at you or stay ON....this would mean a problem with SKIS.
Try swap over the ASD Relay under the hood with the Blower Relay next to it.
You can pull out codes using the "Key" trick on models before 2006:
Turn the ignition key ON/OFF rapidly 4 times without turning over the engine.
After the 4th ON time, leave the ignition ON...the Odometer display should display the stored codes in sequence from the oldest code...which may not be relevant...to the newest code.
Some owners say turn the key ON/OFF 3 times...some say 5 times....I know that 4 times works for me....try it a few times!
The codes are not erased using this method and sometimes the last two digits are transposed which can confuse you.
Fuel problems do not post a code and nor do ABS and Airbag errors.
The codes are recorded only once so even if you have multiple occurances of a certain code...you will see it only once.
Once you have the newest code you may have something valid to work on..may be the camshaft or crankshaft sensor.
Try remove the ASD Relay and identify the female pins 30 and 87 inside the Relay socket.
Briefly jumper these two pins together and see if the engine starts.....I say briefly because maybe the ECU is preventing the ASD Relay from energizing due to a major issue such as low oil pressure! You can safely try this if your SKIS icon stays ON all the time though.
You can download the KJ Service Manuals here but the most important thing to download is the section marked "2.5_2.8 export_diesel" which covers the early Export CRDs which have some differences to the USA models and the later Export models:
http://www.colorado4wheel.com/manuals/Jeep/KJ.