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You will be hearing alot from me in the coming weeks since I just procured and 850 for myself, and a V70 for my mother.
First off, I would like to thank all those who've intelligently contributed to this forum. The wealth of info has been tremendously valuable.
In additon to this forum, Bay 13, and a Haynes manual, I have purchased a CD manual off eBay, and will be procuring an Auterra OBD2 reader, so I'm just about ready to go.
I purchased my 850 off eBay, and drove it from VA to CA.
In that time, I had a couple of (turbo related) hoses break and slow me, but other than that, I got the opportunity to get to know the car a bit.
For this topic, I have some questions relating to the Heating / Cooling system in my 850.
I am getting that antifreeze odor when we start the car, and thanks to this forum, I am concluding that the heater core needs to be replaced (wish I had read that topic BEFORE I drove away).
Also, whenst leaving Texas in 34 degree weather, I noticed the thermostat not coming up to the 3 oclock position... I have since noticed that just 2 or 3 times concluding that is just beginning to stick in the open position, and that is time to replace that with the 90 degree version.
Since I already had hoses break, and since I am replacing the Heater Core and Thermostat (requiring the draining of Coolant), I figured I may as well flush the system and replace the radiator and expansion tank hoses while I was at it.
Again, thanx to this forum and a very funny post, I have concluded that the Volvo coolant is worth the premium they charge.
So, here are my questions;
1. FLUSHING THE SYSTEM
Any thing I do in this regard, of course, would be prior to installing any of the components aforementioned.
I had planned on draining the system, Filling it with Distilled Water, and running the car for a few, then draining again.
I wanted to know if I should, or could add some kind of radiator chemical flush liquid in with the distilled water, and what would be recommended.
If I did use some kind of flushing agent, I would again drain, and refill with distilled water once more and run again, just to be anal and safe.
It is after this distilled-water-only running that I would drain and then tackle component replacement (therefore, any liquid spills related to heater core replacement would be mostly water anyway).
2. HEATER HOSES?
After looking around parts sites for hoses, I also see Heater Hoses listed in the same category.
I am presuming that these are the hoses attached to the Heater Core.
Can someone verify or correct me on this, - and -
Should I replace these whilst I am doing all the rest? (Hoses are about $28 each, but I don't know if access to change them will be simple or difficult, since Haynes is not very detailed on this).
3. GASKETS?
I know the thermostat needs one, which will come with the kit.
Are there any others I should be aware of and order?
4. ECT SENSOR??
I have read the Bay 13 instructions for replacing the thermostat, and in tandem with that are instrucions for replacing the ECT Sensor.
A) Is this an automatic replacement when one replaces the thermostat?? or
Does one only replace this if fault codes are showing?
B) If I do not replace this now, and need to later, is it a must that the coolant be drained and or that the thermostat housing "cap" be removed for access?
C) Furhtermore, I can not find this part at any of the definitive online parts resources - is this a dealer order? does the "sm aluminum crush washer" come with the unit?, and how much should I expect to pay?
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1995 850T Wagon 101k
1998 V70 GLT Wagon 85k
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