V6 2.5 auto hot start problem - Page 2

SD1too · 19th December 2020, 12:55

Hello Brahim,

I don't know about anybody else but I'm getting confused!

It's the camshaft sensor (near the oil filler cap) which has a tendency to fail only when the engine is hot. As Martin said originally, it is only needed for starting. This is the one which you've renewed.

The crankshaft sensor signal is required for the fuel pump to run. It's not known for failing only when hot. If it did, the engine would stop. You haven't experienced this.

Your symptoms are a reluctance to start. It could be early signs of fuel filter separation but only if you have the later type of filter. I see that your car is of the year 2000 so this is doubtful. Can you confirm please Brahim?

Simon

Shuriken_57 · 19th December 2020, 17:02

Quote:

Originally Posted by SD1too

Hello Brahim,

I don't know about anybody else but I'm getting confused!

It's the camshaft sensor (near the oil filler cap) which has a tendency to fail only when the engine is hot. As Martin said originally, it is only needed for starting. This is the one which you've renewed.

The crankshaft sensor signal is required for the fuel pump to run. It's not known for failing only when hot. If it did, the engine would stop. You haven't experienced this.

Your symptoms are a reluctance to start. It could be early signs of fuel filter separation but only if you have the later type of filter. I see that your car is of the year 2000 so this is doubtful. Can you confirm please Brahim?

Simon

Hello Simon ,yes it's a 2000's car( Cowley built).

SD1too · 19th December 2020, 19:53

Sorry, I asked the wrong question. Does your fuel filter have two hoops or a honeycomb design? These photographs will assist in indentification.

Simon

Shuriken_57 · 20th December 2020, 20:45

Quote:

Originally Posted by SD1too

Sorry, I asked the wrong question. Does your fuel filter have two hoops or a honeycomb design? These photographs will assist in indentification.

Simon

I will check this , thanks you.
Today, the reserve lit up while there were almost 20 litres left in the tank. I reset the ipk and the needle returned to its position. Maybe my fuel pump is showing signs of weakness. But why only when the engine is hot?

Shuriken_57 · 2nd March 2021, 11:08

Good morning, gentlemen.
My starting problem is still there.
I changed the camshaft sensor. The battery is new.

I stopped for 30 minutes and it didn’t want to start anymore: the starter works . I unplugged the battery, cleaned the sensor, and it started.
I checked my fuel pump. I’m attaching the picture. What type of pump is that? It is different from the others.
Thank you.

Shuriken_57 · 2nd March 2021, 11:16

Is it a filter?

https://www.the75andztclub.co.uk/for...mg&imgid=28883

Shuriken_57 · 2nd March 2021, 12:19

Sorry i have a lhd version. i have this in other side.

https://www.the75andztclub.co.uk/for...mg&imgid=28884

SD1too · 2nd March 2021, 12:42

Hello Brahim,

As expected your fuel filter looks as if it's the original design. This does not loosen. I'm not sure about your pump as I haven't looked at mine for a long time but the originals don't generally give trouble.

It's interesting that the engine started after cleaning your camshaft sensor. It could be a coincidence of course.

Simon

T-Cut · 2nd March 2021, 12:46

Quote:

Originally Posted by Shuriken_57

Sorry i have a lhd version. i have this in other side.
https://www.the75andztclub.co.uk/for...mg&imgid=28884

Hello Brahim, this is the fuel filter unit. Your photo indicates you have the earlier, non-separating module. This version does not suffer fuel filter separation (also known as FFS).

TC

Shuriken_57 · 2nd March 2021, 14:33

Thanks you for yours responses .
The sensor is new , i think it was a coincidence.
The starter can create this problem?

19th December 2020, 12:55	#11
SD1too Doesn't do things by halves Rover 75 2.5 Connoisseur Auto (1999) Dealer launch model. Join Date: Mar 2007 Location: Former Middlesex Posts: 20,372 Thanks: 1,587 Thanked 3,749 Times in 3,181 Posts	Hello Brahim, I don't know about anybody else but I'm getting confused! It's the camshaft sensor (near the oil filler cap) which has a tendency to fail only when the engine is hot. As Martin said originally, it is only needed for starting. This is the one which you've renewed. The crankshaft sensor signal is required for the fuel pump to run. It's not known for failing only when hot. If it did, the engine would stop. You haven't experienced this. Your symptoms are a reluctance to start. It could be early signs of fuel filter separation but only if you have the later type of filter. I see that your car is of the year 2000 so this is doubtful. Can you confirm please Brahim? Simon __________________ "Whatever is rightly done, however humble, is noble." Sir Henry Royce. Last edited by SD1too; 19th December 2020 at 12:58..

19th December 2020, 19:53	#13
SD1too Doesn't do things by halves Rover 75 2.5 Connoisseur Auto (1999) Dealer launch model. Join Date: Mar 2007 Location: Former Middlesex Posts: 20,372 Thanks: 1,587 Thanked 3,749 Times in 3,181 Posts	Sorry, I asked the wrong question. Does your fuel filter have two hoops or a honeycomb design? These photographs will assist in indentification. Simon __________________ "Whatever is rightly done, however humble, is noble." Sir Henry Royce.

2nd March 2021, 11:16	#16
Shuriken_57 Avid contributor Rover 75 Join Date: Jan 2019 Location: Freyming-Merlebach Posts: 212 Thanks: 104 Thanked 21 Times in 12 Posts	Is it a filter? https://www.the75andztclub.co.uk/for...mg&imgid=28883 Last edited by Shuriken_57; 2nd March 2021 at 12:20..

2nd March 2021, 12:42	#18
SD1too Doesn't do things by halves Rover 75 2.5 Connoisseur Auto (1999) Dealer launch model. Join Date: Mar 2007 Location: Former Middlesex Posts: 20,372 Thanks: 1,587 Thanked 3,749 Times in 3,181 Posts	Hello Brahim, As expected your fuel filter looks as if it's the original design. This does not loosen. I'm not sure about your pump as I haven't looked at mine for a long time but the originals don't generally give trouble. It's interesting that the engine started after cleaning your camshaft sensor. It could be a coincidence of course. Simon __________________ "Whatever is rightly done, however humble, is noble." Sir Henry Royce.

2nd March 2021, 11:08	#15
Shuriken_57 Avid contributor Rover 75 Join Date: Jan 2019 Location: Freyming-Merlebach Posts: 212 Thanks: 104 Thanked 21 Times in 12 Posts	Good morning, gentlemen. My starting problem is still there. I changed the camshaft sensor. The battery is new. I stopped for 30 minutes and it didn’t want to start anymore: the starter works . I unplugged the battery, cleaned the sensor, and it started. I checked my fuel pump. I’m attaching the picture. What type of pump is that? It is different from the others. Thank you.

2nd March 2021, 12:19	#17
Shuriken_57 Avid contributor Rover 75 Join Date: Jan 2019 Location: Freyming-Merlebach Posts: 212 Thanks: 104 Thanked 21 Times in 12 Posts	Sorry i have a lhd version. i have this in other side. https://www.the75andztclub.co.uk/for...mg&imgid=28884

2nd March 2021, 14:33	#20
Shuriken_57 Avid contributor Rover 75 Join Date: Jan 2019 Location: Freyming-Merlebach Posts: 212 Thanks: 104 Thanked 21 Times in 12 Posts	Thanks you for yours responses . The sensor is new , i think it was a coincidence. The starter can create this problem?