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Heater core coupler, how to remove??

Help, Advice and DIY Tutorials on Volvo's P80 platform cars -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, including 850 R, 850 T-5R, 850 T-5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

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MNCO1
Posts: 172
Joined: 22 February 2009
Year and Model: 850 T-5 1997
Location: colorado springs

Heater core coupler, how to remove??

Post by MNCO1 »

Hey, I am having trouble getting my heater coupler out. I have a large white plastic heating/ ventilation thingy blocking the direct pull out maneuver. I hope this doesn't require a dash removal. Help I am stuck.

cattledog
Posts: 134
Joined: 24 January 2010
Year and Model: 2000 V70R
Location: ANN ARBOR, mi.

Post by cattledog »

What model car?
And what exactly is it you are wanting to do?

MNCO1
Posts: 172
Joined: 22 February 2009
Year and Model: 850 T-5 1997
Location: colorado springs

Post by MNCO1 »

1997 850 T5. Heater core went out, started leaking. Decided to replace heater hoses while I was at it. Read enough on posts to see that the plastic connectors on the coupler break pretty easily so got one of those too. Sure enough it breaks versus letting go. Old one is trashed.

MNCO1
Posts: 172
Joined: 22 February 2009
Year and Model: 850 T-5 1997
Location: colorado springs

Post by MNCO1 »

Got it. I forced the old one out. Found that I could cut slits in the backing material to provide more leeway. The new one went in pretty easy. I already pulled the dash once. Didn't plan on doing that this weekend. :mrgreen:

cattledog
Posts: 134
Joined: 24 January 2010
Year and Model: 2000 V70R
Location: ANN ARBOR, mi.

Post by cattledog »

Cool :D

Ozark Lee
MVS Moderator
Posts: 14798
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Year and Model: Many Volvos
Location: USA Midwest
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Post by Ozark Lee »

In a perfect world you simply depress the tabs, push inward until you hear/feel the click when it releases and then, while continuing to depress the tabs pull the hoses back from the firewall.

As you found out there is a 90% chance that the plastic clips will break so, as you properly did, get a new connector kit before you even start.

Don't try to mix and match the parts from an OEM and aftermarket connector kit since they have different spacings on the shoulder of the clip.

...Lee
'94 850 N/A 5 speed
'96 Platinum Edition Turbo
Previous:
1999 V70XC - Nautic Blue - Totaled while parked.
1999 V70XC - RIP - Wrecked Parts Car.
1998 S70 T5
1996 850 N/A
1989 740 GLT
1986 740 GLT
1972 142 Grand Luxe

850man
Posts: 9
Joined: 9 December 2008
Year and Model: 1993 850 GLT
Location: Northern California

Post by 850man »

I have exactly the same repair issue. I need to change out the heater coupler on my '96 850T. However my heater core connects to solid metal pipes from heater core to coupler, not flexible tubes. Does someone out there have a procedure for methodically removing the necessary console/dash items to get the plastic box out of the way? I have to remove it to allow the old/new coupler to be removed, an to pull back the sold heater tubes from the coupler. What a dumb design; why didn't Volvo simply allow pipes to run through firewall like on the 940 or like on many other car designs?
Thanks,
Mike

mcp
Posts: 76
Joined: 28 May 2007
Year and Model:
Location:

Post by mcp »

volvospeed.com/vs_forum/index.php/topic/9717-pics-of-heater-core-install/

These pictures helped me when I replaced the heater core in my 1996 850.
1998 S70, 5 speed manual, 146k, wife's car
1997 850 Wagon, 5 speed manual, 185k, son's car
1996 850 5 speed manual, 220k
1985 MB 300D 268k, running on B20 biodiesel
1983 MB 300D 240k , converted to vegetable oil
1981 VW Vanagon 184k

850man
Posts: 9
Joined: 9 December 2008
Year and Model: 1993 850 GLT
Location: Northern California

Post by 850man »

Once gas pedal is removed, can you shift the heater hose coupler/attached heater hose tubes to the left in order to clear the evaporator casing?

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darylrobert
Posts: 423
Joined: 13 July 2010
Year and Model: V70 240 740t xc70
Location: Australia
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Post by darylrobert »

RHD cars are better :P
nothing in the way
heater-core-1.jpg
heater-core-1.jpg (24.06 KiB) Viewed 5132 times
rhd-cars-are-better.jpg
rhd-cars-are-better.jpg (22.91 KiB) Viewed 5132 times

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