C70 non-starting (diagnosed)

Mike Arnold · Oct 21st, 2008, 20:07

I had just filled up and tried to start the car. It fired for 1 second and then stopped. After that it just turned over without catching. Not helped by the boss calling me on the mobile and an impatient person behind me at the pumps!

After 10 mins the car started and I drove to the local Volvo dealer. They pulled off some diagnostics which turned out to be "key not recognised". Their diagnosis is that the "chip" inside the key was intermittant or the transponder (in the ignition barrel that reads the key) was intermittant. I changed the key for a spare and it has been OK since.

Yes, I would have assumed a hot start problem or fuel injection relay but it appears that the computer's memory has diagnosed the problem.

PS Rybrooks did not charge me for the diagnosis so very pleased.

sabink · Oct 21st, 2008, 21:53

The ignition barrel antenna ring will be the problem, only £20 or so
Get it changed, my alternate key started playing up shortly after trying the other

richard · Oct 22nd, 2008, 16:11

can this happen on earlier models? 850?

dooby · Oct 22nd, 2008, 16:34

Hi Richard,

not from personal experience, but yes we do seem to hear of intermittent problems with electrics here on the 850 sub-forum, and if wiggling the key back and forward a bit changes things it is quite likely to be the electrical part of the ignition switch.

HTH, Pete

Jod T5 · Oct 22nd, 2008, 18:31

Quote:

Originally Posted by richard

can this happen on earlier models? 850?

Not all of the 850 have use the coded key...I would check if yours has a coded key to eliminate this by covering the black portion in foil and trying to start the car...if it starts you do not have a coded key and can concentrate on the ignition switch on the rear of the barrel...
Cheers
Jod

Oct 21st, 2008, 20:07	#1
Mike Arnold Master Member Last Online: May 16th, 2024 12:39 Join Date: Dec 2001 Location: Stockport, Gtr Manchester View Photos By: Mike Arnold	C70 non-starting (diagnosed) I had just filled up and tried to start the car. It fired for 1 second and then stopped. After that it just turned over without catching. Not helped by the boss calling me on the mobile and an impatient person behind me at the pumps! After 10 mins the car started and I drove to the local Volvo dealer. They pulled off some diagnostics which turned out to be "key not recognised". Their diagnosis is that the "chip" inside the key was intermittant or the transponder (in the ignition barrel that reads the key) was intermittant. I changed the key for a spare and it has been OK since. Yes, I would have assumed a hot start problem or fuel injection relay but it appears that the computer's memory has diagnosed the problem. PS Rybrooks did not charge me for the diagnosis so very pleased. __________________ Mike Arnold. 1966 122S

Oct 22nd, 2008, 16:34	#4
dooby Forum Support Team Last Online: Jul 5th, 2019 16:11 Join Date: Mar 2006 Location: Cambridge View Photos By: dooby	Hi Richard, not from personal experience, but yes we do seem to hear of intermittent problems with electrics here on the 850 sub-forum, and if wiggling the key back and forward a bit changes things it is quite likely to be the electrical part of the ignition switch. HTH, Pete __________________ '97MY black 855R M56H + Quaife Porsche/S60R BBK + XP8s, TD04HL-19T, 17"x8J Pegasus, THS intercooler, custom intake & RIP, Samco coolant, Koni/Nivo H&R, S60R manifold, TT-USB, Simota, IPD turbo back, IPD anti-roll bars & droplinks, IPD HT, MSD coil, Innovate LC-1, dimming mirror, Goodridge hoses, DOT5.1, V70 rear lights & handles, poly top bush & A arms & tie bar, strut brace, clear repeaters, 6k HID, catch tank, 2x rear brace

Oct 21st, 2008, 21:53	#2
sabink Member Last Online: May 5th, 2021 10:05 Join Date: Mar 2008 Location: Derby	The ignition barrel antenna ring will be the problem, only £20 or so Get it changed, my alternate key started playing up shortly after trying the other

Oct 22nd, 2008, 16:11	#3
richard Senior Member Last Online: Nov 14th, 2021 20:50 Join Date: Jul 2008 Location: DARLINGTON	can this happen on earlier models? 850?

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