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intercooler clogging 850 1997

posted by  someone claiming to be farnorth on  Sat Sep 24 22:33 CST 2005 [RELATED]

97 850 glt-in severe cold weather, while driving engine will lose throttle response. If pulled over with hood up, can see top hose from intercooler collapse from suction while depressing accelerator. This will also happen when attempting cold start in severe (-25 F, yeah, we get -45F but even I don't ski in that) cold, even though performance fine before shut down. The fix is to pull the top hose off the intercooler, pour in a couple cans of dry gas while bouncing on the bumper and watching gook drain out the bleeder hole. Reconnect hose, start car, no problem...for awhile.
2 questions: where's the real problem? Everything checks out for source of excess oil except slightly low operating temp due to faulty thermostat...replaced. Any suggestions? Question 2: why a drain? seems not to work so isn't it counter productive to turbo function?








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    intercooler clogging 850 1997

    posted by  bill d cat on  Sun Sep 25 01:53 CST 2005
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    last visit: Mon Aug 11 04:23 CST 2014
    [RELATED]

    It's not a problem for me because I live in balmy, sub-tropical New Jersey :D but there have been a number of threads about intercooler freezing in the past. Some bypass the intercooler for the really really really cold months.

    eg. http://www.brickboard.com/AWD/volvo-908360.html








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      intercooler clogging 850 1997

      posted by  someone claiming to be farnorth on  Sun Sep 25 04:46 CST 2005 [RELATED]

      Thank you, bill d cat, for the thread. I'd seen it before and couldn't find it again.








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    intercooler clogging 850 1997

    posted by  someone claiming to be Norm on  Sun Sep 25 01:42 CST 2005 [RELATED]

    The hose is NG, replace it. Intercoolers can't freeze, clog.








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    intercooler clogging 850 1997

    posted by  MadeInJapan on  Sun Sep 25 00:36 CST 2005
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    last visit: Sat Oct 2 06:34 CST 2010
    [RELATED]

    Sounds like the hose has gotten soft over the years...replace hose? Also, how's your coolant quality? Is it within specs? If not, then a drain and fill with 50/50 (anti-freeze & water) would probably be in order. I'd be very leary of using dry-gas in your car...my 2cents.

    After re-reading my post I realized you were talking about intercooler (turbo) line and I was talking about coolant line. Sorry. Anyway, why not consider an engine block heater if temp. conditions are that severe. You can find one on this page (and they really are relatively cheap): http://www.volvopartsworld.com/volpartpage10.htm
    I know your car isn't listed, but there's not a lot of difference between the V70 and your 850...will probably fit. Call them and talk to them about it...they can verify yes or no, or may have one to fit your car. I think that some of what you're experiencing is normal for such severe temps.

    Regards,
    MIJ
    --
    1998 S70 T5 Emarald Green Metallic, 2004 V70 2.5T Ruby Red, Previous Owner of Black '94 850 Turbo Wagon







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