Thread: Failure to start

Is it a case of turns over but wont fire, or wont turn over?


Martyn

Hi Martyn, the engine was completely dead, ignition lights on, like trying to start in gear rather than 'P' or 'N'.

I bet your "trigger" wire on the starter motor is dirty!!!!
Remove clean and all is good.
If Im correct the next time,if every they do,our paths cross you owe me a beer!!!!
Andrew

Volt drop through a faulty alarm spider , or a worn out starter/ solenoid.
Next time it does this on a hot day, just pour some H20 on it to cool it and try again. Or just replace the starter before that happens.
Seriously, the alarm spider on the later Tdi's is a right pain, it can give these symptoms as the voltage can drop so low at the relay/solenoid that it won't kick in at all. Try to start it with a bypass wire next time. If it goes straight away then the wiring between the starter switch and the starter solenoid is suspect, IE the alarm spider.

JC

Hey Guys

I am currently in the bottom dip of the roller coaster ride of owning a Discovery

I have a Disco 93 V8i/GAS that won't start too - I think it's the damn immobilser that has kicked in and won't disconnect

A bit of history:

I took it too the LPG guys who tuned it and tweeked it for me, it ran well on the gas but unforetunately like a dog on fuel, then I took it to Land Rover (last week) who cleaned the injectors and tuned it for both fuel and gas and it ran well, not great but a lot better than it had ever done in the past - then over the weekend I cleaned out the potentiometer and the throttle position sensor with a bit of lube/cleaner spray - Wow! what a difference, the response was rapid and the auto dropped into a lower gear in a flash (I was on the top of the roller coaster ride at this point)

Then for no damn reason what so ever, it just battle to fire, the starter turned and had an occational burp as it intended to fire - but nothing.

I put the battery on charge overnight and the next day - but still nothing - nada

I am getting fuel through - to the point of it smelling out the place - (possible flooding maybe?)

Q - how does one bypass the immobaliser? - (now that sounds suspect I know) - but I still think the spark is supressed due to the immobaliser?

Come on you guru's - this should be an easy one

Originally Posted by Landie93

Hey Guys

I am currently in the bottom dip of the roller coaster ride of owning a Discovery

I have a Disco 93 V8i/GAS that won't start too - I think it's the damn immobilser that has kicked in and won't disconnect

A bit of history:

I took it too the LPG guys who tuned it and tweeked it for me, it ran well on the gas but unforetunately like a dog on fuel, then I took it to Land Rover (last week) who cleaned the injectors and tuned it for both fuel and gas and it ran well, not great but a lot better than it had ever done in the past - then over the weekend I cleaned out the potentiometer and the throttle position sensor with a bit of lube/cleaner spray - Wow! what a difference, the response was rapid and the auto dropped into a lower gear in a flash (I was on the top of the roller coaster ride at this point)

Then for no damn reason what so ever, it just battle to fire, the starter turned and had an occational burp as it intended to fire - but nothing.

I put the battery on charge overnight and the next day - but still nothing - nada

I am getting fuel through - to the point of it smelling out the place - (possible flooding maybe?)

Q - how does one bypass the immobaliser? - (now that sounds suspect I know) - but I still think the spark is supressed due to the immobaliser?

Come on you guru's - this should be an easy one

There is a post somewhee showing a pic of a modified spider, a couple of wires were bridged and it fixed the problem.
I think there was also a LR mod that was a 'plug in' that bypassed or joined a couple of wires on the circuit board..

ok found the post... it has pics in the tutorial.

The Definitive Alarm Spider Post - LR4x4 - The Land Rover Forum

Hey Guys

I am currently in the bottom dip of the roller coaster ride of owning a Discovery

I have a Disco 93 V8i/GAS that won't start too - I think it's the damn immobilser that has kicked in and won't disconnect

A bit of history:

I took it too the LPG guys who tuned it and tweeked it for me, it ran well on the gas but unforetunately like a dog on fuel, then I took it to Land Rover (last week) who cleaned the injectors and tuned it for both fuel and gas and it ran well, not great but a lot better than it had ever done in the past - then over the weekend I cleaned out the potentiometer and the throttle position sensor with a bit of lube/cleaner spray - Wow! what a difference, the response was rapid and the auto dropped into a lower gear in a flash (I was on the top of the roller coaster ride at this point)

Then for no damn reason what so ever, it just battle to fire, the starter turned and had an occational burp as it intended to fire - but nothing.

I put the battery on charge overnight and the next day - but still nothing - nada

I am getting fuel through - to the point of it smelling out the place - (possible flooding maybe?)

Q - how does one bypass the immobaliser? - (now that sounds suspect I know) - but I still think the spark is supressed due to the immobaliser?

Come on you guru's - this should be an easy one