Volvo 850 heater core replacement 2

Post by **MoVolvos** » 19 Jul 2012, 21:55

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A piece of hose and a dab of silicone on the firewall side should eliminate or drastically reduce the noise. Same link as before (2nd photo) but add some silicone.

http://volvoforums.com/forum/volvo-850- ... nes-46740/

Blessings,
BKM
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PEWPEW · Post by **PEWPEW** » 20 Jul 2012, 01:11

BKM98 S70 T5 wrote:-
A piece of hose and a dab of silicone on the firewall side should eliminate or drastically reduce the noise. Same link as before (2nd photo) but add some silicone.

http://volvoforums.com/forum/volvo-850- ... nes-46740/

Blessings,
BKM
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Thanks BKM, I will attempt that over the weekend if it doesn't rain too much

beoutside · Post by **beoutside** » 24 Jul 2012, 13:46

checked out mine and the leak was a evaporator drain hose clog , 5 min fix, make sure to check if your losing coolant!!, plus removing the carpet/ side panels/ kick panels on both sides to see were water is coming from really helps. Mine only leaked when fan was running since the fan cowling was backed up with water !!

Post by **cn90** » 09 Aug 2012, 10:47

Just want to add a video to make this complete.
IPD USA has a nice video showing you how to replace Heater Core.

NOTE: IPD recommends clamping the heater hoses (in the engine compartment) to minimize coolant spill inside the cabin:

volvogirl75 · Post by **volvogirl75** » 09 Aug 2012, 18:25

Single mom..all repairs done y myself

Bypassed heater core...
slightly overheated after bypassing ...
replaced thermostat ...
refilling water and coolant couple times all of it seems to boil out top of reservoir when car running. Not when idling.
when driving 3-5 miles starts overheating

someone mentioned to me liquid glass as temp bandaid if possible cracked head or head gasket ...
I need every opinion I can get!!!
Flat broke! !
Can't even get work ...
about to lose home n job without car

Post by **MoVolvos** » 09 Aug 2012, 20:29

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Trapped air in the system when you opened it. I couldn't find anything here right off but the link below should help.

http://www.chicagoengines.com/tech/bull ... eating.htm

Blessings,
BKM
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Post by **cn90** » 09 Aug 2012, 20:49

The thermostat you put in, does it have a hole?

volvogirl75 · Post by **volvogirl75** » 09 Aug 2012, 20:59

What do you mean "hole"???
Btw..thanks for trying to help. Very much!!!

Post by **cn90** » 09 Aug 2012, 21:08

A hole in the thermostat allows air to bleed out by itself.

The Factory Volvo thermostat was made by Wahler and it has a hole in it.

Some aftermarket tstats have no holes. What brand of tstat did you put it?

Here is a picture of the bleed hole:

: Tstat.JPG (25.46 KiB) Viewed 1876 times

volvogirl75 · Post by **volvogirl75** » 09 Aug 2012, 21:22

BKM...
your article was extremely informative! !!
Ill have to wait till tomorrow morning to test it though.
so what I'm reading is...unclamp highest heater hose...pull from radiator ... fill radiator ...clamp hose back to radiator ...top off reservoir again...how long should it take to see a difference? ?
How does that bleed air?
Just
Curious.
How do u bleed air already in cooling system? ?
DEFINITELY TRYING ASAP IN AM!!

Volvo 850 heater core replacement 2

Re: Volvo 850 heater core replacement 2