fuel/inertia switch/starting issue

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Zakmyster

New Member
Posts
6
Evening all,

So ive got a manual td5 disco 2. parked it on the drive a bit back and it stalled by itself. and ive been trying for a couple months to get it going and still no luck. It turns over but doesnt turn on the fuel pump, no noiuse or priming. Ive put in a new fuel pump, still nothing. Ive swapped relays with others i know are working and still nothing. Bypassed the relay by taking it out and bridging over the perpendicular slots and the pump runs so the pump works. next i thought the inertia switch so bypassed that. Still nothing. i then read a few threads and noticed theres no glow plug light on the dash, swapped out the main relay and check it isnt a immobiliser issue but isnt that as the LED on the dash goes out and locks and unlocks fine with no hazards or anything when trying to start. ive also change the crank sensor incase that was doing something on a whim. also had new injector loom etc. but im at a lost and pretty confused as it doesnt even splutter, guessing cos the pumps not going. its like its not telling the relay to switch on for some reason. any help appreciated.

sorry for the long thread but thought id explain evorything.
cheers guys
 
Zakmyster said:
Evening all,

So ive got a manual td5 disco 2. parked it on the drive a bit back and it stalled by itself. and ive been trying for a couple months to get it going and still no luck. It turns over but doesnt turn on the fuel pump, no noiuse or priming. Ive put in a new fuel pump, still nothing. Ive swapped relays with others i know are working and still nothing. Bypassed the relay by taking it out and bridging over the perpendicular slots and the pump runs so the pump works. next i thought the inertia switch so bypassed that. Still nothing. i then read a few threads and noticed theres no glow plug light on the dash, swapped out the main relay and check it isnt a immobiliser issue but isnt that as the LED on the dash goes out and locks and unlocks fine with no hazards or anything when trying to start. ive also change the crank sensor incase that was doing something on a whim. also had new injector loom etc. but im at a lost and pretty confused as it doesnt even splutter, guessing cos the pumps not going. its like its not telling the relay to switch on for some reason. any help appreciated.

sorry for the long thread but thought id explain evorything.
cheers guys
Click to expand...
Have you tired jumpstarting it? As so often this sort of issue is down to a weak battery.
 
Stanleysteamer said:
Have you tired jumpstarting it? As so often this sort of issue is down to a weak battery.
Click to expand...
I havnt tried that mate, but its a pretty new battery and has been on charge a couple days and tried before starting this thread as i know the injectors need more than 10.4v before they kick in but im confused why its not triggering the fuel pump relay
 
Zakmyster said:
Yeh it would be mate but im trying to find someone in the area with a nanocom and its proving a bit tricky. dont really fancy splashing out on one yet Lol
Click to expand...
TBH I'd not worry about a Nano for a while. Why not try doing what you did to get the fuel pump going then try to crank it again to see if it fires up and runs. Even if you have to jury rig wires to it. But be aware that if the ECM doesn't get a signal that the pump is running it still might not do its stuff and allow it to start.
any ideas @sierrafery ? ;)
 
Stanleysteamer said:
TBH I'd not worry about a Nano for a while. Why not try doing what you did to get the fuel pump going then try to crank it again to see if it fires up and runs. Even if you have to jury rig wires to it. But be aware that if the ECM doesn't get a signal that the pump is running it still might not do its stuff and allow it to start.
any ideas @sierrafery ? ;)
Click to expand...
Yeh, theres no adnormal lights on the dash so its like something isnt right and the truck is stopping it from firing on purpose but i just dont know what is giving it the impression it shouldnt run haha. i bridged the relay to get the pump going and tried cracking and still nout. heard pressure on the fuel rail so its getting there but its something telling the truck not to run, so like you say about the ECM, might not just be the fuel pump thats being told not to run. proper confused and just adiment to try and beat this gremlin, but no doubt there would be another
 
Zakmyster said:
Yeh, theres no adnormal lights on the dash so its like something isnt right and the truck is stopping it from firing on purpose but i just dont know what is giving it the impression it shouldnt run haha. i bridged the relay to get the pump going and tried cracking and still nout. heard pressure on the fuel rail so its getting there but its something telling the truck not to run, so like you say about the ECM, might not just be the fuel pump thats being told not to run. proper confused and just adiment to try and beat this gremlin, but no doubt there would be another
Click to expand...
when i say theres no adnormal lights on the dash, I mean its like the truck doesnt sense somthings wrong and need a nanocom. its like somethings not right and stopping itself. hope you get what i mean.
 
Zakmyster said:
when i say theres no adnormal lights on the dash, I mean its like the truck doesnt sense somthings wrong and need a nanocom. its like somethings not right and stopping itself. hope you get what i mean.
Click to expand...
Before spending the money give @sierrafery a chance to jump on and give his opinion, it might be something simple and he is the biz when it comes to the electronix on these trucks!
 
Stanleysteamer said:
Before spending the money give @sierrafery a chance to jump on and give his opinion, it might be something simple and he is the biz when it comes to the electronix on these trucks!
Click to expand...
Yeh yeh sounds good, spent enough on what it turns out not to be so im trying to hold back for now. Which is bringing my other half alot of happieness haha. just been reading other threads on simular issues and he sounds like the man. cheers matey
 
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