Cuts out going down hill

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A

Alan Lyndel

New Member
Posts
5
Location
Newcastle under Lyme
Nearly every time I go down a steep hill were talking on the road the engine bleeps at me and cuts out being an auto I have to come to a stop and then it will easily restart, runs fine otherwise, anyone help please………….:eek:
 
Alan Lyndel said:
Nearly every time I go down a steep hill were talking on the road the engine bleeps at me and cuts out being an auto I have to come to a stop and then it will easily restart, runs fine otherwise, anyone help please………….:eek:
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What year??
Petrol or Diesel??

When it bleeps - is there any message in the message display??
When it cuts out - does it pop and fart then die or just die??
How much fuel is in the tank??

I would be looking at fuel starvation due to iffy tank pump or a loose battery or fuse box positive cable....

You obviously didn't read the sticky at the top of the forum titled Give us a Hint....Its The Least You Can Do....!!!

:welcome2: btw....
 
Alan Lyndel said:
Nearly every time I go down a steep hill were talking on the road the engine bleeps at me and cuts out being an auto I have to come to a stop and then it will easily restart, runs fine otherwise, anyone help please………….:eek:
Click to expand...

Please read the sticky at the top of the Range Rover page.
 
This happens occasionaly in my 2000 diesel auto. As i get a 'gearbox fault' warning on the dash when it happens I got seriously worried and posted about it a couple of years ago. No-one came up with a definite reply so I've replaced the in-tank pump, checked all the plumbing and wiring but found nothing.

Because it happens when I ease my foot off as gravity starts to accelerate me down the hill I've got a suspicion that it might be conflicting information between the crank sensor and no.4 injector and the gearbox fault is only because it's still turning although the engine is no longer using diesel. I've only recently acquired a Nanocom but haven't yet had the chance to recreate the fault with it connected.

I have however got so used to it that I can knock the box into neutral, restart the engine and get back into drive without the following traffic realising that there was anything wrong.
 
Saint.V8 said:
Mines on the fritz, so I am now resorting the the 'Magic 8 Ball' :D
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My sister had a Magic 8 ball when we were kids I once shook it so much the internals got stuck and it never showed any answer.

I never admitted it though - I just placed it back where I got it from and got the hell away!!
 
dogsbody said:
This happens occasionaly in my 2000 diesel auto. As i get a 'gearbox fault' warning on the dash when it happens I got seriously worried and posted about it a couple of years ago. No-one came up with a definite reply so I've replaced the in-tank pump, checked all the plumbing and wiring but found nothing.

Because it happens when I ease my foot off as gravity starts to accelerate me down the hill I've got a suspicion that it might be conflicting information between the crank sensor and no.4 injector and the gearbox fault is only because it's still turning although the engine is no longer using diesel. I've only recently acquired a Nanocom but haven't yet had the chance to recreate the fault with it connected.

I have however got so used to it that I can knock the box into neutral, restart the engine and get back into drive without the following traffic realising that there was anything wrong.
Click to expand...

It will eventually knacker the gearbox as the oil pump doesn't run when the engine stops:eek:
I looked at a diesel a while back where the engine would stall on lifting off the throttle, on live data the lift sensor signal would disappear for varying periods coincidental with the stall or near stall. I guessed either the sensor or the FIP fuel quantity stop.
The owner was on his way back to the UK and decided to take it into his local indy, regretably he never got back to me as to what if anything was done to fix the problem.
 
Datatek said:
It will eventually knacker the gearbox as the oil pump doesn't run when the engine stops:eek:
I looked at a diesel a while back where the engine would stall on lifting off the throttle, on live data the lift sensor signal would disappear for varying periods coincidental with the stall or near stall. I guessed either the sensor or the FIP fuel quantity stop.
The owner was on his way back to the UK and decided to take it into his local indy, regretably he never got back to me as to what if anything was done to fix the problem.
Click to expand...

I have already theorised on this. He must get the timing modulation checked. If the static pump timing is off and not giving any static lift on the cam, it means the delivery valve that should be open at TDC is shut. Therefore the fuel quantity solenoid has to be held against the pressure of it's return spring to give idle fuel. When the throttle is closed there is a momentary change of state as the idle switch is engaged. The return spring on the fuel quantity solenoid pulls the delivery valve shut against maybe a slightly worn stop and the engine stops. Yet to be proved but i'll bet it's not far off.
 
wammers said:
I have already theorised on this. He must get the timing modulation checked. If the static pump timing is off and not giving any static lift on the cam, it means the delivery valve that should be open at TDC is shut. Therefore the fuel quantity solenoid has to be held against the pressure of it's return spring to give idle fuel. When the throttle is closed there is a momentary change of state as the idle switch is engaged. The return spring on the fuel quantity solenoid pulls the delivery valve shut against maybe a slightly worn stop and the engine stops. Yet to be proved but i'll bet it's not far off.
Click to expand...

Fuel modulation appeared OK on live data.
 
Alan Lyndel said:
some very interesting answers I will have a look at all areas mentioned let you all know how I get on thank you all for your coments
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And still no mention of year or fuel type....he's luicky to get any kind of help....or all we know we are discussing a diesel and he's got a fecking V8....

HELP US OUT WITH INFORMATION PEOPLE.....
 
Datatek said:
Not this one, the one I looked at on Faultmate with similar symptoms Tony. Shame the bugger never got back to me with the result if any.
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Still think it has something to do fuel quantity solenoid. Bad part of track, dropping too far back because of wear in stop. Something of that nature. Mine does this now and again. But only at very low speed on idle. Will sort it one of these days or at least find what is causing it. It has a new number four injector but cannot check that with Nanocom at the moment as they have not yet rectified the overspeed indication glitch.
 
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