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Using ramps, stopped halfway, now won't start.
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DiscoNate
 


Member Since: 25 Sep 2013
Location: Sligo, Ireland
Posts: 27

Wales 
Using ramps, stopped halfway, now won't start.

Hi Folks,

Will be grateful for your ideas.

2014 D4 HSE SDV6.

I began the day today intending to replace the fuel tank cradle which is very corroded. I am using four 3 tonne ramps to give me plenty of room to work.

Last week I tried a test of the ramps and drove up in low range. When at the top an epb fault popped up, I had to pull the emergency release cable to shift into neutral and release the brake. I left as is and will get to that job next but it may have relevance to the problem today.

Today I crawled up the ramps in low range but, I'm blaming wifey here who is my spotter, communication could have been better and I had to roll backwards down the ramps a little not wanting to risk touching the gas pedal in case I had too much and shot off the end of the ramps.

Still on the ramps, half way down and desending backwards, in drive and low range, the car decided it didnt like what was happening and cut out.

It stayed where it was halfway down the ramp, I assume the transmission was still in drive but engine off at this point.

It would not restart upon several attempts and is sending a gearbox fault message.

I pulled the emergency release again and this successfully shifted into neutral which allowed me to roll back off the ramps.

Problem now is, it won't start at all. I have tried a reset by disconnecting the battery for 30 minutes.
It is in park ( or maybe neutral ) on the gear selector knob. The gearbox fault message is displaying along with the epb fault message from the previous week. I am fairly confident that the battery is good but there is no attempt to start when i push the button.

Some observations, should there be any 'rollback' down a slope when forward drive is engaged?
Is this possibly related to a neutral safety mechanism?

Would appreciate any opinions.

Many thanks.
  
Post #23702612nd Jun 2024 3:19 pm
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Sylvester19
 


Member Since: 18 Jul 2020
Location: Central Scotland
Posts: 122

Ukraine 2016 Discovery 4 3.0 TDV6 Landmark LE Auto Indus SilverDiscovery 4

Have a read through this thread, some similarities, ramps, epb, non start, low fuel? Problem was corrosion of the fuses, solved by either replacing them or removing & putting them back in, worth a try if you don't have gap iid to check for any codes.

https://www.disco3.co.uk/forum/electrics-h...07913.html
  
Post #23703012nd Jun 2024 11:48 pm
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DiscoNate
 


Member Since: 25 Sep 2013
Location: Sligo, Ireland
Posts: 27

Wales 

Thanks for the reply.

No success so far. I have tried a jump cable from neutral to earth.
Tried a jump from a different vehicle.

The foot brake does feel unusually firm but when trying to start with the pedal depressed I can hear fuel pump running and relays clicking away. I can detect no evidence of an attempt to turn the engine over by the starter motor at all.
When the foot brake is not depressed it pops up with the warning to press the footbrake so I am not suspecting the brake switch yet.

The gear selector knob is saying it is in park and P is showing on the info console.

I have just 20km range indicated and nearly empty / this is because I was changing the fuel tank craddle and needed it to be as light as possible. Would fuel starvation cause it to not attempt to turn over? Either way, the indicated range is at a value I would expect it to be at based on recent use.

My current list is a) starter motor gone ( or related fuses/relays ) or, b) Crankshaft / engine seizure or something equally horrific...

I haven't tried to crank the engine as there was no indication of a critical failure at the time. No shudders or knocking or anything like that. It just cut out. I am assuming there would be detectable symptoms to something catastrophic but I am willing to be educated.


This is all very much above may skill level so a mechanic is coming to look tomorrow.
I will report back to the forum in the interest of sharing knowledge... if I manage to get some that is. I am having recurring nightmares about the cost of an engine replacement, if anyone has some good news i would love to hear it...

Thanks all.
  
Post #23703513rd Jun 2024 4:39 pm
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M3DPO
 


Member Since: 22 Sep 2010
Location: Notts.
Posts: 8154

England 2014 Discovery 4 3.0 SDV6 HSE Lux Auto Corris GreyDiscovery 4

You are making my mistake going up ramps when low on fuel, the D3/4 fuel tank is long and slim consequently the fuel at one end of the tank is empty, D3/4 have a safety feature to protect components that can be damaged if not running in fuel like the hp fuel pump, so the engine is stopped and the EP is engaged by the EMS before it runs out of fuel and will not start or allow the starter motor to operate until sufficient fuel (20ltr) has been put in the tank. Thumbs Up
 It can when others can't,
It will when others won't,
It goes where others don't. 
 
Post #23703593rd Jun 2024 9:15 pm
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M3DPO
 


Member Since: 22 Sep 2010
Location: Notts.
Posts: 8154

England 2014 Discovery 4 3.0 SDV6 HSE Lux Auto Corris GreyDiscovery 4

DiscoNate wrote:
Thanks for the reply.

No success so far. I have tried a jump cable from neutral to earth.
Tried a jump from a different vehicle…………………..

………………………….
I will report back to the forum in the interest of sharing knowledge.………………………………………………….. I am having recurring nightmares about the cost of an engine replacement, if anyone has some good news i would love to hear it...

Thanks all.


Still waiting Rolling with laughter
 It can when others can't,
It will when others won't,
It goes where others don't. 
 
Post #237150220th Jun 2024 2:20 pm
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