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 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~

79,265

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:

S70

Looking for a Used S70 in your area?

CarGurus has 74 nationwide S70 listings and the tools to find you a great deal.

ZIP:

Volvo S70 Experts

  • #1
    Christopher Paden
    Reputation
    890
  • #2
    Flint
    Reputation
    490
  • #3
    David Farc
    Reputation
    430
View All

Related Models For Sale

Used Volvo V70
6 Great Deals out of 289 listings starting at $1,799
Used Volvo S80
28 Great Deals out of 738 listings starting at $1,790
Used Volvo C70
7 Great Deals out of 380 listings starting at $2,599
Used Volvo S90
18 Great Deals out of 2,734 listings starting at $29,999
Used Volvo S40
15 Great Deals out of 779 listings starting at $1,429
Used BMW 3 Series
898 Great Deals out of 31,547 listings starting at $900
Used Ford Mustang
256 Great Deals out of 38,498 listings starting at $1,350

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.