Engine Not Starting, hear clicking of the cold start solenoid?

KITMAN148

MEMBER
2002 MITSUBISHI L200
2.5L
4 CYL
TURBO
4WD
MANUAL
120,000 MILES

It was running fine on tick over with a very minor hunt, next day was ticking over and stopped just as if had been turned off and then I started straight up with no problem. The following day would not start there was no power to the stop solenoid on the fuel pump when I fed a separate 12v to solenoid it started straight up after some time the start relay in the passenger footwell stopped operating but you can hear clicking of the cold start solenoid in the engine bay that consists of feed from the relay in the footwell that inturn should feed the sosolenoid that connects the two wires to complete the circuit if I unbolt. The two wires and join them together it would short out I have tried to eliminate components to try and find the issue there are No blown fuses. I am somewhat at a point where it is very annoying and would appreciate any advice towards resolving this issue. I thank you in advance

Kind regards

3 Replies

KEN L

MASTER CERTIFIED MECHANIC
47,522 POSTS

It sounds like the ticking noise could be the fuel pump control relay which is behind the right kick panel, is this where you heard the noise? Can you upload a short video of the noise so I can hear it? The relay makes sense because you said it stalled with no power to the pump, here is the location of the relay so you can swap it out. Check out the images (below). Please let us know what happens.

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Thursday, November 14th, 2024 AT 10:49 AM

KITMAN148

MEMBER
2 POSTS

Hi thank you for your reply I'm so grateful, I have checked the pump relay that appears to be in the passenger footwell underneath the ecu and the relay is a 4 pin with 3 wires have 12v and the 4th wire 0 volts and should turn into 12v when the key is turned on and also that would mean the amba check light and squiggle amba heat should come on that currently don't come on. If I take the cover off the relay and manually operate the 4th wire does have 12v and the amba lights come on and also it operates the solenoid in the engine bay and it powers the fuel pump up but it doesn't feed the stop solenoid with 12v, if I was to operate the relay and feed the stop solenoid with 12v the truck will start and run.
I hope that this information helps and thank you in advance.

Kind regards

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Thursday, November 14th, 2024 AT 2:52 PM

KEN L

MASTER CERTIFIED MECHANIC
47,522 POSTS

It sounds like the ECM is not turning the fuel pump on. Lets run the run the codes to see if any are stored which can lead us to the problem.

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Also, this trucks need the fuel filter and water separator changed and can shut off when these unit are overloaded, did you have any lights on when driving?

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Friday, November 15th, 2024 AT 9:35 AM