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98-2000 ECC Cold Temperature Issue, 9171800 intermittent

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FlyingVolvo
Posts: 1822
Joined: 08 Mar 2009, 15:43
Year and Model: 2000 V70XC
Location: USA
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Post by FlyingVolvo »

Correct.

Also, I never use any Auto function of my ECC. Only manual fan speed, temperature, and vent position. I think it reduces wear and tear on the motors. Haven't had the AC on in a couple months.

Thinking it may just be capacitors or some part of the board that's getting weird with the freezing temps?
2000 V70XC - 340,000 miles
Hilton Tune, 16T Turbo, Mototec 3" downpipe, Blue injectors, IPD Short Ram Filter, Snabb Intake Piping & RIP kit, do88 Intercooler, TME Dual Exhaust, HID Projectors, R Panels, do88 Silicone Hoses

2023 V60 T8 PE
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yanga001
Posts: 801
Joined: 24 Mar 2019, 15:25
Year and Model: 98/99/00 v/s70’s
Location: Ontario
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Post by yanga001 »

It could be capacitors being out of spec on cold startups. I have a few ECC's which i can take apart and check to see if this is the case. I once had issues with a manual climate control unit after years of sludge built up on contacts and shorted motors together. This was fixed by cleaning all the motor contacts on the board. Theoretically, if it is just capacitors then we are in the territory of ordering upgrade parts and replacing them on the board to check. If someone posts a picture of the board then that could help.
1998 S70 N/A Auto (Parts car)(planned to be harvested)
1998 V70 N/A Auto New full restoration project (Water pump thrown at 404K Km)
1998 V70 N/A Auto (Workhorse) (Tree to driver B pillar :( )
1999 S70 T5 Auto(Project) (planned to be fixed)
2000 S70 SE M Learning platform (planned to be driven one day)
2008 S60 2.5T Auto (Sold)
2012 Honda Pilot AWD Touring (Daily)
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