What is my problem.

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spurs

Active Member
Posts
249
Location
potters bar, herts
Hi there Now i have a problem....
and that is that the other night i was driving down to my friends on friday last week and i was in the road works on the m25 and i just cut out then once it came to a halt arfter a couple of cranks it fierd back up. But then the other day i was on the petrol station forecourt and it woudnt start and it happend whilst i was on my driveway but i know that the glow plugs heat up fine cause as soon as it starts cranking it fires up straight away!
iv been told that it could be my ignition switch or solinoid or relay!
now is there any way how i can identify what the problem is?
many regards
buster
P.S. the engine is a 2.5 n/a 1986
 
Also check your fuel cut off solonoid ( on the back of the fuel pump ) connections are nice and tight and not smot up in crap . an easy way to see if it works well is turn on the IGN and pull off the wire and tap it back on - it should make a click each time you touch the wire to it .

If it does it again leave the IGN on and check to see if it clicks , if not its poss IGN switch .

.
 
Good evening,

When you try to turn the engine over (on the starter) can you hear a click or a continuous clicking? Your glow plugs don't draw anywhere near as many amps as your starter, so that may be a simple battery problem. Connect up some jump leads from another vehicle with the engine running. Make sure that you connect the live feed to the live feed on your starter, and the negative feed directly to some bare metal on your engine.

If you can crank your engine over then it's definitely not a starter problem and your starter would not cause it to cut out whilst the engine was running. The three ingredients that your engine requires to run are air, diesel and compression. I doubt that you've suddenly lost compression on all four cylinders, so start suspecting your fuel line and the air intake system. When you turn the engine what colour smoke are you seeing out of the exhaust, if any? Have someone turn the engine over whilst you hold your hand over the very start of your air intake. Is there continuous suction? It should try to suck your hand off! If there's good suction, your engine isn't struggling to draw air in (even though this isn't the most accurate way to gauge this). As stated, check your fuel solenoid. On the 2.5 N/A (12J) it's the little bit sticking out of the TOP of your injection pump with the single wire attached to it. Simply connect a positive wire from a different 12V battery directly to this terminal and then connect the negative terminal of the new battery to the engine somewhere (to rule out your own battery). If it still doesn't fire up then there could be all sorts of different fuelling problems - most of them only trivial.

-Pos
 
Last edited:
Aye, like said above.....






...and FFS! Could ye try and stop stickin' me name at the bottom o' yer posts! Ah keep gettin' confused and thinkin' it's me that's posted summit!!:rolleyes:;)
 
Hi Pos
when this happens it only clicks once, there is NO continuous clicking!!
I'm completley confused and dont really know where to start/what it could be and all help is much appreciated.
many Regards
 
Hi Pos
when this happens it only clicks once, there is NO continuous clicking!!
I'm completley confused and dont really know where to start/what it could be and all help is much appreciated.
many Regards

It sounds like you now have two problems, one of which has sprung from the other. Your engine cut out whilst it was running and from what I can gather this happened twice? I think it's safe to assume that the engine cutting out was caused by a lack of diesel reaching the engine. If it was something like a snapped timing belt you wouldn't be able to turn the engine over. Here's how to fix your problem:

The starter not turning

When you turn the key and you hear a 'click', what you are hearing is the starter motor solenoid opening which allows the starter motor to receive a live feed from your battery and in turn rotate thus firing up your engine. You've probably flattened your battery trying to get your engine started with previous attempts to fire it up, hence why you can hear the solenoid opening and not the starter motor spinning. Your starter motor needs to draw a hell of a lot of amps from your battery in order to turn. Look at the thickness of the positive and negative wires to and from it - they're there to handle a hell of a lot of current. What you need to do is have a friend come over with a reliable vehicle - you're going to use the battery in their vehicle to spin your starter motor.

You need a set of jump leads, arrange them in the following order:
Connect the red jump lead to your friends positive terminal on the battery in their car, and connect the other end to the positive terminal of your car battery.
Connect the black jump lead to the negative terminal on your friends car battery and then attach the other end to your engine or the ground strap between your engine and the chassis - it's the flexible steel rope like strap. You can also connect it to the negative terminal on your battery if you like.

Have your friend rev their engine and hold it at those revs whilst you turn the key. Your starter should spin. If it doesn't check over your starter motor wiring. Generally if the solenoid clicks but the starter doesn't spin - it's a flat battery. Bare in mind that it wont start because your engine has a fuelling problem.

The engine cutting out

I'll put my money on your engine having a fuelling problem. By that I mean that either fuel is not reaching your injectors, or their is air being drawn into the fuel line somewhere between your fuel tank and the injectors. Locate the lift pump on the drivers side of your engine. Undo the pipe that runs between that and the fuel filter housing and then turn the engine over on the key (with your friends battery connected). It should fire fuel out all over the engine bay. Does it? If so, follow the fuel line to the filter. Dissasemble it and then re-assemble it with a new fuel filter kit. Make sure you fit the rubber seals properly - beware of the old top rubber seal getting stuck in the filter housing.

-Pos
 
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