S60 bi-fuel

reggit · Aug 19th, 2012, 10:52

I'm having an intermittend problem with my factory bi-fuel, it will suddenly just cut out at random times - no spluttering beforehand etc. It then won't restart on gas, the engine just coughs as if it has no fuel supply. Sometimes the petrol switch won't activate the gas change over, the light just stays constant orange.

I know I've an intermittent fault on the LPG stepper motor (according to VIDA) which I'm intending replacing in the next week or so, but would this account for the complete shutting off of the fuel supply, and inability to reselect LPG?

Does it sound like an intermittently failing shut off soleniod coil? I may as well replace everything at once if so.

classicswede · Aug 19th, 2012, 22:43

Check the coil on the tank and under bonnet solenoid for cracking. If the plastic has split then it could be the coil failing.

reggit · Aug 20th, 2012, 20:04

Thanks Dai - now how the heck are you supposed to reach the back allen screw on the stepper motor?

I currently have the bumper and slam panel off (was doing some other work as well), and am still struggling to get to the fastners.

classicswede · Aug 21st, 2012, 20:57

Are you not taking the distributor block off to clean it all out at the same time?

reggit · Aug 22nd, 2012, 14:18

I was trying to follow these instructions to clean the distributor - http://www.forumgas.se/forum/viewtopic.php?f=12&t=1334

However I have now pulled the entire distributor and stepper motor out for overhaul which seemed easier.

classicswede · Aug 22nd, 2012, 19:18

Good link that - I'm sure others would also find it usefull.

Aug 19th, 2012, 10:52	#1
reggit Premier Member Last Online: Yesterday 20:24 Join Date: Feb 2012 Location: Preston	S60 bi-fuel I'm having an intermittend problem with my factory bi-fuel, it will suddenly just cut out at random times - no spluttering beforehand etc. It then won't restart on gas, the engine just coughs as if it has no fuel supply. Sometimes the petrol switch won't activate the gas change over, the light just stays constant orange. I know I've an intermittent fault on the LPG stepper motor (according to VIDA) which I'm intending replacing in the next week or so, but would this account for the complete shutting off of the fuel supply, and inability to reselect LPG? Does it sound like an intermittently failing shut off soleniod coil? I may as well replace everything at once if so.

Aug 19th, 2012, 22:43	#2
classicswede Trader Volvo in my veins Last Online: Today 01:54 Join Date: Dec 2004 Location: Anglesey	Check the coil on the tank and under bonnet solenoid for cracking. If the plastic has split then it could be the coil failing. __________________ http://www.classicswede.org www.classicswede.co.uk

Aug 21st, 2012, 20:57	#4
classicswede Trader Volvo in my veins Last Online: Today 01:54 Join Date: Dec 2004 Location: Anglesey	Are you not taking the distributor block off to clean it all out at the same time? __________________ http://www.classicswede.org www.classicswede.co.uk

Aug 22nd, 2012, 19:18	#6
classicswede Trader Volvo in my veins Last Online: Today 01:54 Join Date: Dec 2004 Location: Anglesey	Good link that - I'm sure others would also find it usefull. __________________ http://www.classicswede.org www.classicswede.co.uk

Aug 20th, 2012, 20:04	#3
reggit Premier Member Last Online: Yesterday 20:24 Join Date: Feb 2012 Location: Preston	Thanks Dai - now how the heck are you supposed to reach the back allen screw on the stepper motor? I currently have the bumper and slam panel off (was doing some other work as well), and am still struggling to get to the fastners.

Aug 22nd, 2012, 14:18	#5
reggit Premier Member Last Online: Yesterday 20:24 Join Date: Feb 2012 Location: Preston	I was trying to follow these instructions to clean the distributor - http://www.forumgas.se/forum/viewtopic.php?f=12&t=1334 However I have now pulled the entire distributor and stepper motor out for overhaul which seemed easier.

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