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jeff t · Oct 6th, 2018, 19:35

Hi, if you look back at some old threads you will see lots of information on temp problems with gauges.
Had the same problem twice with my 460 over the last 18years, and it proved to be the little brass spacers between the pcb and gauge,as these carry the earth through, slight white powder between the brass and solder of the pcb the cause.
Volvo used to say it was the pcb on the back of the gauge failing and first time I changed the pcb it fixed problem, but failed again after 10 years.
I bought a pcb from a scrap car that I new worked but found cleaning the spacers got the gauge working again.
Not saying this is your problem but it might help checking.
This is a post I put up about 10 years ago and sold the car about 5 years ago.

Oct 6th, 2018, 19:35	#7
jeff t VOC Member Last Online: Jul 27th, 2019 19:17 Join Date: Jan 2007 Location: belmont, durham	Temp problem Hi, if you look back at some old threads you will see lots of information on temp problems with gauges. Had the same problem twice with my 460 over the last 18years, and it proved to be the little brass spacers between the pcb and gauge,as these carry the earth through, slight white powder between the brass and solder of the pcb the cause. Volvo used to say it was the pcb on the back of the gauge failing and first time I changed the pcb it fixed problem, but failed again after 10 years. I bought a pcb from a scrap car that I new worked but found cleaning the spacers got the gauge working again. Not saying this is your problem but it might help checking. This is a post I put up about 10 years ago and sold the car about 5 years ago.