IPD sale Volvo Parts
Did you know? 🤔
Logged in users can get email notification of topic replies Log in or register (free).
Amazon Link Buy your stuff using this and it helps MVS!

97 850 NA - Regular soft knocks/clicks -- repeated pattern of movement

Help, Advice and DIY Tutorials on Volvo's extremely popular car line -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, 850 R, 850 T5-R, 850 T5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

xHeart
Posts: 2386
Joined: Sat Dec 03, 2011 8:05 am
Year and Model: 1997 854 NA
Location: Great Lakes - USA
Has thanked: 13 times
Been thanked: 18 times
United States of America
xHeart

Re: 97 850 NA - Regular soft knocks/clicks -- repeated pattern of movement

Post by xHeart » Tue May 14, 2019 2:05 pm

The intermediate arm was replaced, BUT was it installed correctly?

In preparation for summer and air conditioning, the REC switch for air recirculation is causing strange behavior. Key in POS II, REC ON (light ON) it has motor rotation and thump of vent door -- it cycles. REC OFF (light OFF) it clicks and thumps repeatedly.

The climate control is without ECC.

Install orientation is same as in this diagram #18:
Image


--
Golden Retriever | 2014D VIDA DiCE | 2013A XC90 +140mi/225km | 2001 V70XC 1st Owner +190mi/ +305km | 1997 Volvo 850 NA 1st Owner +180mi/ +289km
Past: German Shepherd | 1989 Volvo 740 GL | 1979 Volvo 240

xHeart
Posts: 2386
Joined: Sat Dec 03, 2011 8:05 am
Year and Model: 1997 854 NA
Location: Great Lakes - USA
Has thanked: 13 times
Been thanked: 18 times
United States of America
xHeart

Re: 97 850 NA - Regular soft knocks/clicks -- repeated pattern of movement

Post by xHeart » Thu May 16, 2019 11:25 am

Removing the six 25T screwed and pulling out the glovebox gives access.

I couldn't understand the motor's rotation for the REC switch ON/OFF -- it cycles with ON, and clicks with OFF. So, I decided to take off intermediate lever/arm from the motor. It disengaged the vent door opening/closing function. Left the REC switch is ON (light ON) to avoid the clicks of OFF position.

Is the vent closed when REC is ON (light ON) -- #6 flap in closed position -- recirculating cabin air? How does cabin air flows with REC switch at ON/OFF?


--
Golden Retriever | 2014D VIDA DiCE | 2013A XC90 +140mi/225km | 2001 V70XC 1st Owner +190mi/ +305km | 1997 Volvo 850 NA 1st Owner +180mi/ +289km
Past: German Shepherd | 1989 Volvo 740 GL | 1979 Volvo 240

Post Reply