Grit Valve
2000 4.6 Vouge
They can be replaced cutting holes can't
No i am not saying that. Take a look at the wiring diagrams for the fuel lift pump relay 12. You will see two circuits with diodes one from number six glow plug. One from alternator on pre 1999 cars. On 1999 on cars there are three circuits with diodes, one from number six glow plug, one from alternator and one from starter relay. The diodes are to prevent reverse power flow. So on pre 99 cars there are two methods of pulling the relay, a feed from glow plug and a feed alternator. Protected by two diodes so they cannot interact. On 99 on cars three ways of powering relay pull down, feed from number six glow plug, feed from starter relay and feed from alternator. All protected by diodes to prevent interaction.
gfromleeds
Well-Known Member
yea read it sounds straight forward were do I get the replacement olives from?
gfromleeds
Well-Known Member
lol cunny funt !!Popeye.
gfromleeds
Well-Known Member
just been out and I cant see any air in the feed pipe but she wont start
funking getting sick of it now
FOR SALE???
funking getting sick of it now
FOR SALE???
Grit Valve
2000 4.6 Vouge
Island 4x4
Grit Valve
2000 4.6 Vouge
At then end of the day forget the glow plug circuit especially if hot the pump don't fire up until the key is turned too position two in that case the car is turning over or running make no difference you still need to crank it !
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Grit Valve
2000 4.6 Vouge
Don't think you quite understand do you? ON A PRE 1999 P38 DIESEL THE LIFT PUMP WILL NOT RUN WHEN THE ENGINE IS BEING CRANKED.
gfromleeds
Well-Known Member
Well mines not running at all lol
Grit Valve
2000 4.6 Vouge
so the scenario is been out in the car its a bloody hot day car was right up to its temputre on return to car an hour and a half later the glow plugs arnt needed As the car is still registering warm but I have developed some air in my clear pipe and are about to Start my car at what point does the intank pump reprime the system in laymens terms pre 99
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When the engine is running. That was one of the problems they tried to sort by making the lift pump run on cranking on 1999 on cars.
Grit Valve
2000 4.6 Vouge
Aw I think I'm halfway there, so what is the differance to a engine cranking over reciving signals from the cps number 4 injector and a slight output from an alternator compaired to a running engine ????
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The only thing the ECU takes any notice of on start up is the ECU temp sensor. It then sets pre start fuel and timing according to temp reading. Nothing else kicks in until the engine is doing over 500 RPM or so. That is why it jumps to fast idle then drops back even when it's hot. As i said earlier on your car which i think is year 2000, lift pump is on whilst glow plugs are on, relay pulled by feed from number six glow plug. When the engine is being cranked, relay pulled by starter relay. Or when engine is running relay pulled by alternator. All are connected in common to pin 1 on relay 12. But protected from interaction by three diodes. So that as each is powered they cannot react with the other two.
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Grit Valve
2000 4.6 Vouge
An extract from a previous thread look
For the question marks I have added
I would just like to say thank you to:
Wammers.
Arron beast,
Derek ward,
Takdrivers,
Enery8.
For all your help and advice.
Yippeeee....my car is running, though it was not all straight forward.
Tried bridging relay...no luck.
Tried new relay...no luck.
So went all in and cut a hole in the floor changed fuel pump.
It was difficult getting the rubber seal to fit around the pump opening but got there in the end.
???????I left the fuel pipe off at the filter end and placed it into a container then turned the car over a few times to bleed the pipe.???????
once the pipe was bled i conected it back to the filter.
Turned the ignition a few times and voila........engine was running again.
Also a big thank you to canyan for putting the cutting instructions on the site.
Mike.
PS ITS MY BIRTHDAY TODAY......................LOL
Btw this is a pre 9& car
For the question marks I have added
I would just like to say thank you to:
Wammers.
Arron beast,
Derek ward,
Takdrivers,
Enery8.
For all your help and advice.
Yippeeee....my car is running, though it was not all straight forward.
Tried bridging relay...no luck.
Tried new relay...no luck.
So went all in and cut a hole in the floor changed fuel pump.
It was difficult getting the rubber seal to fit around the pump opening but got there in the end.
???????I left the fuel pipe off at the filter end and placed it into a container then turned the car over a few times to bleed the pipe.???????
once the pipe was bled i conected it back to the filter.
Turned the ignition a few times and voila........engine was running again.
Also a big thank you to canyan for putting the cutting instructions on the site.
Mike.
PS ITS MY BIRTHDAY TODAY......................LOL
Btw this is a pre 9& car
An extract from a previous thread look
For the question marks I have added
I would just like to say thank you to:
Wammers.
Arron beast,
Derek ward,
Takdrivers,
Enery8.
For all your help and advice.
Yippeeee....my car is running, though it was not all straight forward.
Tried bridging relay...no luck.
Tried new relay...no luck.
So went all in and cut a hole in the floor changed fuel pump.
It was difficult getting the rubber seal to fit around the pump opening but got there in the end.
???????I left the fuel pipe off at the filter end and placed it into a container then turned the car over a few times to bleed the pipe.???????
once the pipe was bled i conected it back to the filter.
Turned the ignition a few times and voila........engine was running again.
Also a big thank you to canyan for putting the cutting instructions on the site.
Mike.
PS ITS MY BIRTHDAY TODAY......................LOL
Btw this is a pre 9& car
Your point is?
Datatek
Well-Known Member
Datatek
Well-Known Member
He never said that, the different feeds to the pump are isolated by blocking diodes.
