2000 Volvo V70 XC--Coolant/Radiator Leak

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.
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1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
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adk793
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Year and Model: 2000 V70 XC AWD/SE
Location: San Francisco, CA

2000 Volvo V70 XC--Coolant/Radiator Leak

Postby adk793 » Sun Jun 20, 2010 12:00 am

I have a 2000 Volvo V70 XC with 96K Miles. Here is the next issue: I have not had issues with overheating/coolant leaking with this car. I check it once and a while and the coolant level stayed pretty consistent. This morning, my coolant light when on as i staretd my car. So i turned it off to check and the reservoir tank was almost empty. So i added some pre-diluted coolant in there and went on with my day.

It was parked in the garage that night and there was no spot/stain on the ground from any fluid leak. Same with the rest of the day, ground stayed dry/no visible leak. Well i peeked under the car and it seems fairly dry except one part near the front. My main question is where did it all go! My car does not have any white smoke coming out of the tail pipe so i dont think its something that big but is it evaporating, or leaking out somewhere?
How can i check/what should i do.
After adding coolant, the fluid stayed leveled all day.

ecbsykes
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Year and Model: 2000 V70XC
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Re: 2000 Volvo V70 XC--Coolant/Radiator Leak

Postby ecbsykes » Sun Jun 20, 2010 12:07 am

I'd go to a shop and have them run a leak-down test. It pressurizes the system a. to see if it holds b. to possibly see where it's dripping. Look under the driver's floor mat; is it wet by any chance?

Check the radiator for cracks, especially where the upper radiator hose connects to the radiator (passenger's side up high). Mine developed a crack right there, and many others have experienced the same thing. Is this the original radiator?
Ed Sykes
2000 V70XC 2.4L Emerald Green 240,000 miles

adk793
Posts: 93
Joined: Sun Apr 04, 2010 6:55 am
Year and Model: 2000 V70 XC AWD/SE
Location: San Francisco, CA

Re: 2000 Volvo V70 XC--Coolant/Radiator Leak

Postby adk793 » Sun Jun 20, 2010 12:09 am

How much with labor is a new radiator on this car. Like mentioned, the crack has developed where the hose and the radiator connect. It leaks out bit by bit. Is there a way to repair this, weld it back together, change just that plastic part of it, or does the whole car have to go.
Can i drive around with this as long as i continue adding coolant n watching my temp. levels or is this an urgent matter that can get worse.

ecbsykes
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Joined: Sun Mar 08, 2009 9:43 pm
Year and Model: 2000 V70XC
Location: Charleston, SC
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Re: 2000 Volvo V70 XC--Coolant/Radiator Leak

Postby ecbsykes » Sun Jun 20, 2010 2:17 am

It will get worse. The cooling system is pressurized, and those plastic tanks do fail over time (I think the age tends to make them brittle more than actual mileage). Unfortunately it is not really repairable, although I guess you could JJB Weld it as a very temporary solution. If that little crack fails catastrophically on the highway though, you could easily overheat and ruin a much more expensive engine.

I would have changed my radiator myself, not too bad of a job, but I was about to leave for school 500 miles away and needed it done fast and the right way. I had a local shop replace it, $400 flat for me.
Ed Sykes
2000 V70XC 2.4L Emerald Green 240,000 miles

adk793
Posts: 93
Joined: Sun Apr 04, 2010 6:55 am
Year and Model: 2000 V70 XC AWD/SE
Location: San Francisco, CA

Re: 2000 Volvo V70 XC--Coolant/Radiator Leak

Postby adk793 » Sun Jun 20, 2010 3:13 am

How hard is it to remove the radiator. Reading my repair manual, the transmission oil cooler lines and the cooling fan seems the hardest. Is this something i can do or should i invest in having a shop do it. I'm not in the best financial situation.

ecbsykes
Posts: 1398
Joined: Sun Mar 08, 2009 9:43 pm
Year and Model: 2000 V70XC
Location: Charleston, SC
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Re: 2000 Volvo V70 XC--Coolant/Radiator Leak

Postby ecbsykes » Sun Jun 20, 2010 3:29 am

If you have the room and means to do it, I'd say go for it. I haven't done it myself, but as you know the resources available on this forum are incredible. The oil cooler lines I know are actually quite simple to remove. They are held in with plastic clips (might get a couple extra in case they break, they are cheap).

Once you move stuff out of the way, the radiator fan is not too difficult from what I've read. Then there's just the issue of removing it from the inter-cooler since it's a turbo model.
Ed Sykes
2000 V70XC 2.4L Emerald Green 240,000 miles

adk793
Posts: 93
Joined: Sun Apr 04, 2010 6:55 am
Year and Model: 2000 V70 XC AWD/SE
Location: San Francisco, CA

Re: 2000 Volvo V70 XC--Coolant/Radiator Leak

Postby adk793 » Sun Jun 20, 2010 5:38 pm

what works related the to intercooler do i need to do/watch out for. The reason why i mention transmission lines because my repair manual says it will leak when i unplug them. Also, how high up does the car need to be for the radiator to come out

JDS60R
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Re: 2000 Volvo V70 XC--Coolant/Radiator Leak

Postby JDS60R » Sun Jun 20, 2010 6:34 pm

You need the distance from the bottom of the rad support to the floor to at least be the height of the radaitor. I do it on a set of ramps without and issue. You can always put it up on jack stands and chocks if needed.

You will replace the o rings and outer clamps on the trans lines and top up the fluid as needed.

The intercooler is just another radiator so be careful not to nick or punture it. Take your time and disconnect hoses as neede to give yourself clearance.

Drain the radiator first and whne refilling use quality coolant and distilled or demineralized water. I use the Volvo coolant as it contains sebacic acid and a low level of silicates that the one fits all types do not include. I like the extra measure of protection as it is unreasonably hot where I live and I have to take long drives to where it is even hotter - not to mention I use the turbo frequently.

Replace any hoses or couplers that feel too mushy . If you have never done it plan 4-6 hours . If you have done it it only takes about 2 hours.

Sorry but they list the procedure only onder the V70 and not the XC - hopefully they are similar.
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adk793
Posts: 93
Joined: Sun Apr 04, 2010 6:55 am
Year and Model: 2000 V70 XC AWD/SE
Location: San Francisco, CA

Re: 2000 Volvo V70 XC--Coolant/Radiator Leak

Postby adk793 » Sun Jun 20, 2010 7:28 pm

alright, ill really have to think it over what i want to do. My only doubts are ruining something or messing up, otherwise id give it a shot. And using JJB weld, that wont harm it, right, how long would it hold for
and is the metal inside broken if the plastic is broken or it could be just the plastic part.

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Re: 2000 Volvo V70 XC--Coolant/Radiator Leak

Postby JDS60R » Sun Jun 20, 2010 7:40 pm

I have never been able to make JB weld work on these plastic tanks. I know permatex and some other companies make plastic glues but I think the heat cycle destroys them all.

I would just pull the radiator and replace it. If you can see a visable crack you are riding on borrowed time. Seeing as how a tow will cost at least half the price of the rad itself I would replace it now.
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