Engine starts... engine stops!

boggymarsh · Aug 14th, 2018, 23:34

I am having an intermittent problem with the old barge where it can go for weeks without problem and then for no apparent reason the car will start, throw a wobbly and then stall, with the car going into limp mode and a variety of displays on the clock. It will start again if it is locked up and revisited after a good hour but not before.

I am suspecting something linked to the immobiliser as looking back it seems to occur if the doors or the boot lid has been left open for a while... I have been leaving it open to vent after having wet and soggy dogs in the boot or because it has been akin to an oven inside with the recent spell of very hot weather.

The alarm service message has been showing for the past two years and so a new alarm module is probably needed but it’s never caused an issue... or maybe it’s beginning to?

The battery is only 18months old and is holding a solid charge.

Any ideas as to what is going on? Maybe time to go and get some codes read...

Brendan W · Aug 14th, 2018, 23:50

Have you pulled the alarm siren fuse?

Zebster · Aug 15th, 2018, 07:51

I don't see how the immobiliser could cause limp mode, it'll either let the car start or not.

But limp mode should generate an associated Diagnostic Trouble Code which could be read using an OBD scanner (not sure if your car is OBD1 or 2) and this should give a useful hint as to the actual problem.

Aug 14th, 2018, 23:34	#1
boggymarsh XC70 2008 D5 SE Last Online: Mar 10th, 2024 17:38 Join Date: Jul 2007 Location: Kent	Engine starts... engine stops! I am having an intermittent problem with the old barge where it can go for weeks without problem and then for no apparent reason the car will start, throw a wobbly and then stall, with the car going into limp mode and a variety of displays on the clock. It will start again if it is locked up and revisited after a good hour but not before. I am suspecting something linked to the immobiliser as looking back it seems to occur if the doors or the boot lid has been left open for a while... I have been leaving it open to vent after having wet and soggy dogs in the boot or because it has been akin to an oven inside with the recent spell of very hot weather. The alarm service message has been showing for the past two years and so a new alarm module is probably needed but it’s never caused an issue... or maybe it’s beginning to? The battery is only 18months old and is holding a solid charge. Any ideas as to what is going on? Maybe time to go and get some codes read...

Aug 14th, 2018, 23:50	#2
Brendan W Premier Member Last Online: Apr 2nd, 2024 19:50 Join Date: Dec 2007 Location: Wexford	Have you pulled the alarm siren fuse?

Aug 15th, 2018, 07:51	#3
Zebster Upstanding Member Last Online: Sep 12th, 2023 11:29 Join Date: Mar 2018 Location: Ludlow	I don't see how the immobiliser could cause limp mode, it'll either let the car start or not. But limp mode should generate an associated Diagnostic Trouble Code which could be read using an OBD scanner (not sure if your car is OBD1 or 2) and this should give a useful hint as to the actual problem.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)