my heater fan goes on randomly everybody thinks it's an ignition switch

Asked by Nov 18, 2013 at 07:09 PM about the 1999 Volvo S70 Turbo AWD

Question type: Maintenance & Repair

my volvo guy ordered an ignition switch and its a dual air system, when I turn the switch
on and off it goes off. I read on some of your answers you may think it a fan going bad or
some kind of module. at the volvo shop they quoted about $170 for the module. What do
you think?

3 Answers

ok....my computer keeps pointin' to an ECM relay~ http://www.1aauto.com/1A/electrical-auto- parts/Volvo/V70/1AZMX00174/652918-1999? utm_campaign=gb_csv_br&utm_content=ZMX&gclid=COKfkpzJ77oCFatAM godO0sAXw

1 of 1 people found this helpful.

...personally one must look at the age of the battery...and the condition of the main connection to the ground....disassemble the lug (1/0) cable off the battery....wirebrush it clean and the territory that it bolts to....with a solid ground...(as dis-similar metals form a "semi-conductor" layer of corrosion there) and a NEW battery, you problems WILL go away~

68,445

My friend at work has a '93 Cadillac Eldorado that does the same thing. Has been for years. Nobody, including the Cadillac Dealer can figure it out. I kinda remember reading somewhere that certain years and models of BMW will do this as part of the ventilation system. Maybe it's normal? -Jim

Your Answer

Add photo

Related Questions

S70

Looking for a Used S70 in your area?

CarGurus has 109 nationwide S70 listings starting at $2,400.

ZIP:

Search Volvo S70 Questions

Volvo S70 Experts

#1 Christopher Paden
Christopher Paden
Reputation 800
#2 Flint
Flint
Reputation 450
#3 David Farc
David Farc
Reputation 400
View All

Related Models For Sale

Used Volvo V70
4 Great Deals out of 415 listings starting at $2,999
Used Volvo S80
37 Great Deals out of 974 listings starting at $995
Used Volvo C70
29 Great Deals out of 495 listings starting at $1,495
Used Volvo S90
17 Great Deals out of 2,489 listings starting at $37,997
Used Volvo S40
36 Great Deals out of 1,098 listings starting at $750
Used Nissan Maxima
328 Great Deals out of 24,436 listings starting at $1,995
Used Toyota Camry
1,226 Great Deals out of 84,968 listings starting at $750
Used Honda Accord
1,048 Great Deals out of 68,868 listings starting at $1,000
Used Honda Civic
871 Great Deals out of 85,333 listings starting at $500

Used Cars For Sale

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.