First it's "diesel" , your not giving a lot of information here but for a diesel to fire it will require 350 psi of compression. It sounds like it will run if you pull it, that indicates you may be spinning it faster to get higher pressuer or heat build up in the cylinders to actually fire the fuel. I take it the glow plugs or working? If not get them working first before you go on. I assume it may be a high mileage diesel it could have been dusted and have low compression.
SOURCE: No glow plug light, car turns over but won't start, no CEL or codes
I don't have the solution but a possible help in diagnosing. If you remove the water temperature sensor connector from the sensor, the glow plug light should stay on when you go to start the car. Try leaving it on for 15 seconds and then start the car. If it starts right away, it is your sensor. If it doesn't, the good luck.
The sensor is located on the right side of the engine near the top, at the back. It is in the coolant fitting directly behind the hose from the rad, just left of the thermostat. Be careful to disconnect the wires, and not remove the sensor, or you will loose a lot of coolant. The sensor is held in by a separate plastic clip, and the harness just has a little built in clip on the side. Hope you have small hands...
SOURCE: volks wagen golf diesel tdi Nreg
Check the glow plug thermo sensor...found in the cylinder head.
Unlightly anything wrong with injector pump.
Good luck
John
SOURCE: i have got nissan almera 2.2 turbo diesel. about
that sounds like either immobilizer prob or dirt in the filter inside your tank
SOURCE: 1992 F250 7.3 idi diesel glow plug relay has power
Have you checked the glow-plugs? On that system if one glow-plug is burnt up than it will not let the main relay in the controller to kick in.
Check all the glow-plugs make sure they are working.
The easiest way to check them is with a regular 12v test light.
Hook up the negitive end (aligator clip end ) to the battery + terminal and than with the other end of the test light ( pointed end ) touch each glow- plug connector tip ( with the glow-plugs harness connector removed ) and see if the test light lights up.
If the test light up--- glow-plug is good. If not than the glow-plug is bad--burnt out .
Testimonial: "Thanks, I had one out and now the truck starts right up. "
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