Im going to replace my heater core on my 99 s70 this weekend. I looked over the thread on the forum explaining the replacement and it looks fairly simple. Has any one else had to replace their heater core and if so any suggestions.
Replacing Heater Core
Started by bocavolvo, May 04 2005 09:26 PM
13 replies to this topic
#2
jp1733
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Posted 04 May 2005 - 09:36 PM
when you put trash bags down so it doesn't leak onto your carpet, you should tape your trash bags up so the fluid pools instead of running all over the trash bag. i also put trash bags under the bag that i had the fluid run on.
hope this helps
john
hope this helps
john
1996 Volvo 850 2.3L Turbo Black
Volans w/eagle F1's
ipd strut bar
Koni sport shocks/struts w/TME springs
Volans w/eagle F1's
ipd strut bar
Koni sport shocks/struts w/TME springs
#3
bocavolvo
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Posted 04 May 2005 - 09:38 PM
Thanks for the tip. Was the whole procedure pretty simple.
#4
MrWinkey
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Posted 04 May 2005 - 11:13 PM
Really you have a bad core in a 99 s-70? Are you sure...just asking cause thats a fair amount of work
"SMOKE TROUT NOT CRACK"
#5
bocavolvo
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Posted 05 May 2005 - 05:35 AM
yeah. I have a continuous loss of coolant and all the typical bad heater core signs. Coolant smell coming from vents, foggy windshield. But i think it was the steady flow of coolant dripping out of the heater core box that really gave it away. The dealership wanted something around $500 for the repair but the thread about replacing the heater core made it seem to be pretty do able for a decent do it yourselfer.
Edited by bocavolvo, 05 May 2005 - 05:52 AM.
#6 Guest_Guest_*
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Posted 05 May 2005 - 04:24 PM
I removed the heater hoses before removing my core, to keep the spillage to a minimum.
Have another suggestion, if you have an air compressor, take an air jet, and put the jet in one of the holes where the hoses run into the core piping at the fire wall, take a container to catch the anti-freeze and hold it under the other hole, and blow compressed air into one hole. This should force most of the anti-freeze out of the core, and prevent much spillage. Just go easy with the air.
The remainder of the repair, is a straightforward un-bolt, bolt swap. Remove the A/C drain line, just behind the core housing, to make removal and reinstall easy too.
BB
Have another suggestion, if you have an air compressor, take an air jet, and put the jet in one of the holes where the hoses run into the core piping at the fire wall, take a container to catch the anti-freeze and hold it under the other hole, and blow compressed air into one hole. This should force most of the anti-freeze out of the core, and prevent much spillage. Just go easy with the air.
The remainder of the repair, is a straightforward un-bolt, bolt swap. Remove the A/C drain line, just behind the core housing, to make removal and reinstall easy too.
BB
#7
98V70BASEBOY
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Posted 05 May 2005 - 04:26 PM
Sorry, above was me. 
BB
BB
1998 V70 N/A
Stock except for custom treatment on center console.
151,658 miles as of 11/24/2008
Stock except for custom treatment on center console.
151,658 miles as of 11/24/2008
#8
jp1733
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Posted 05 May 2005 - 04:51 PM
air is a great idea!...just don't keep to air-happy like he said.
1996 Volvo 850 2.3L Turbo Black
Volans w/eagle F1's
ipd strut bar
Koni sport shocks/struts w/TME springs
Volans w/eagle F1's
ipd strut bar
Koni sport shocks/struts w/TME springs
#9
bocavolvo
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Posted 05 May 2005 - 06:57 PM
thanks for the tips guys. Unfortunately i dont have an air compressor so it may get a little messy while removing the core. Thanks for the tips though. By the way is it difficult getting to the bottom screws on the heater core box, and did you guys replace the o rings as well.
Edited by bocavolvo, 05 May 2005 - 06:59 PM.
#10
98V70BASEBOY
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Posted 06 May 2005 - 12:45 AM
QUOTE(bocavolvo @ May 5 2005, 01:57 PM)
thanks for the tips guys. Unfortunately i dont have an air compressor so it may get a little messy while removing the core. Thanks for the tips though. By the way is it difficult getting to the bottom screws on the heater core box, and did you guys replace the o rings as well.
The bottom screws are removed once you have the core and the bottom part of the housing out (They come out together.) Remove the screws joining the top and bottom halves of the housing, and one screw that holds the piping to the bottom of the core, and pull down and toward the console.
New o-rings
If no compressor, you could try a length of tubing and try forcing it out with your breath. Be VERY careful with this though. Probably easier just to use the plastic bags to good effect.
1998 V70 N/A
Stock except for custom treatment on center console.
151,658 miles as of 11/24/2008
Stock except for custom treatment on center console.
151,658 miles as of 11/24/2008
#11
bocavolvo
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Posted 07 May 2005 - 05:25 AM
thanks for the tips baseboy. Now I just need my parts to hurry up and get here so i can let the fun begin
#12 Guest_Guest_*
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Posted 08 May 2005 - 05:37 AM
When i did my core with the pictures present on the write up, i had about 6 oz's of fluid come out. (just shy of a full 8 oz styrofoam coffee cup) It was negligable.
Also helps to have the car parked on level ground.
Also helps to have the car parked on level ground.
#13
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Posted 08 May 2005 - 05:37 AM
sorry that was me^^^^^^^^^^^^
98' S70GLT 228K miles ... still on original Turbo
#14
classiguy3
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Posted 08 May 2005 - 05:16 PM
1 questions, can the heater core be repaired by a radiator shop?
