S40: - Changed battery and now wont start. Immobilised?

2001s4o · Dec 16th, 2019, 17:25

Hi all. I have a 2001 S40, I recently changed the battery as it was dying, however since changing it the car will crank but will not start. It's not started once since changing. I have tried almost everything recommended in other threads in terms of different ways of disconnecting and reconnecting the battery and locking and unlocking the car. Nothing has worked. The AA looked at it and couldn't help. It was towed to local garage who have had it for a week and have just said they have no idea but suspect immobiliser.

Can somebody please help as it seems crazy that changing the battery could essentially write the car off. It's not worth much but I love it and want it to live again!

Thank you in advance

V40DSchariot · Dec 16th, 2019, 22:09

I don't want to offer false hope, but is the engine petrol or diesel and do you what has been checked by AA and your local garage?

2001s4o · Dec 17th, 2019, 10:36

It's petrol. They checked all fuses and relays which where fine, battery good, spark good but no fuel. Tank has fuel and fuel pump is good but not getting to engine. Not sure what else the garage checked but they had run out of ideas.

gatos · Dec 17th, 2019, 12:59

is the immobiliser light flashing or staying on?

2001s4o · Dec 17th, 2019, 13:01

No immobiliser light goes out at point 2 on ignition

Clan · Dec 17th, 2019, 13:10

Quote:

Originally Posted by 2001s4o

It's petrol. They checked all fuses and relays which where fine, battery good, spark good but no fuel. Tank has fuel and fuel pump is good but not getting to engine. Not sure what else the garage checked but they had run out of ideas.

from what you say it should be pretty easy for a garage to figure out why the fuel isnt getting from the tank to the fuel rail on the engine , is there any fuel pressure ? that is the first check .. Maybe it has run out of fuel , Changing the battery doesn't cause this kind of thing ....

2001s4o · Dec 17th, 2019, 13:16

I wouldn't have imagined changing the battery would cause this but it appears it has. Car has fuel and I can only imagine the garage would have checked pressure

aldred309uk · Dec 18th, 2019, 19:15

I don't know if this is much help but I recently had to change the battery on my saxo and it refused to start afterwards. Ended up needing to reset the enertia/fuel cut off switch. I assume the Volvo has one but not sure where it would be. Maybe someone else can direct you to it. I initially overlooked the inertia switch but that's what it was in the end.

aldred309uk · Dec 18th, 2019, 19:19

Just had a look around and someone had similar issues to you and it ended up being a faulty camshaft sensor.

https://volvoforums.com/forum/volvo-...-switch-26299/

Clan · Dec 18th, 2019, 20:05

Quote:

Originally Posted by aldred309uk

I don't know if this is much help but I recently had to change the battery on my saxo and it refused to start afterwards. Ended up needing to reset the enertia/fuel cut off switch. I assume the Volvo has one but not sure where it would be. Maybe someone else can direct you to it. I initially overlooked the inertia switch but that's what it was in the end.

No volvo have never used those , that's British Leyland 1980's technology :-) Back then volvo were using an electronic relay to do that , when the coil pulsed stopped , so did the fuel pump ...

Dec 16th, 2019, 17:25	#1
2001s4o New Member Last Online: Dec 18th, 2019 09:55 Join Date: Dec 2019 Location: Cornwall	Changed battery and now wont start. Immobilised? Hi all. I have a 2001 S40, I recently changed the battery as it was dying, however since changing it the car will crank but will not start. It's not started once since changing. I have tried almost everything recommended in other threads in terms of different ways of disconnecting and reconnecting the battery and locking and unlocking the car. Nothing has worked. The AA looked at it and couldn't help. It was towed to local garage who have had it for a week and have just said they have no idea but suspect immobiliser. Can somebody please help as it seems crazy that changing the battery could essentially write the car off. It's not worth much but I love it and want it to live again! Thank you in advance

Dec 16th, 2019, 22:09	#2
V40DSchariot Master Member Last Online: Apr 3rd, 2022 15:09 Join Date: May 2013 Location: Derbys	I don't want to offer false hope, but is the engine petrol or diesel and do you what has been checked by AA and your local garage? __________________ 2016 V60 SE Lux Nav 2001 V40 T4 S - All The Fun of The Fair The big print giveth and the small print taketh away

Dec 17th, 2019, 12:59	#4
gatos Premier Member Last Online: Nov 15th, 2022 21:34 Join Date: Apr 2010 Location: London / Essex	is the immobiliser light flashing or staying on? __________________ Current car: 2002 S40 1.9D, 1992 240SE Nullius in Verba

Dec 18th, 2019, 19:15	#8
aldred309uk Member Last Online: Apr 20th, 2021 22:33 Join Date: Sep 2015 Location: Blackburn	I don't know if this is much help but I recently had to change the battery on my saxo and it refused to start afterwards. Ended up needing to reset the enertia/fuel cut off switch. I assume the Volvo has one but not sure where it would be. Maybe someone else can direct you to it. I initially overlooked the inertia switch but that's what it was in the end. __________________ Phase 2 1.9tdi V40

Dec 18th, 2019, 19:19	#9
aldred309uk Member Last Online: Apr 20th, 2021 22:33 Join Date: Sep 2015 Location: Blackburn	Just had a look around and someone had similar issues to you and it ended up being a faulty camshaft sensor. https://volvoforums.com/forum/volvo-...-switch-26299/ __________________ Phase 2 1.9tdi V40

Dec 17th, 2019, 10:36	#3
2001s4o New Member Last Online: Dec 18th, 2019 09:55 Join Date: Dec 2019 Location: Cornwall	It's petrol. They checked all fuses and relays which where fine, battery good, spark good but no fuel. Tank has fuel and fuel pump is good but not getting to engine. Not sure what else the garage checked but they had run out of ideas.

Dec 17th, 2019, 13:01	#5
2001s4o New Member Last Online: Dec 18th, 2019 09:55 Join Date: Dec 2019 Location: Cornwall	No immobiliser light goes out at point 2 on ignition

Dec 17th, 2019, 13:16	#7
2001s4o New Member Last Online: Dec 18th, 2019 09:55 Join Date: Dec 2019 Location: Cornwall	I wouldn't have imagined changing the battery would cause this but it appears it has. Car has fuel and I can only imagine the garage would have checked pressure

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