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Turbo Hose from MAF to Turbo Vacuum Question- P0103 Code 850 1994

posted by  rice240 on  Mon Jan 15 15:10 CST 2018
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last visit: Tue Aug 26 10:51 CST 2014
[RELATED]

I am having all sorts of issues chasing down a P0103 code. I have read every possible post. I have a couple of stupid questions... Be nice!

1. Is the insert that has the vacuum line, hose from breather and heating element in the hose from air box to turbo supposed to spin freely? It is in there but it can spin around. Wouldn't that let air in?

2. I did my PCV and my car only had two lower intake manifold bolts. Of course I dropped one and can't find it. Could that cause a significant vacuum leak if all of the top ones are tight and the bottom ones are not?

I did find a tear in the throttle body to IAC hose. I have ordered from Volvo $150.00!

Now my car starts fine and then dies in 20- seconds. I can force it to run with the pedal but it is misfiring. I suppose there is a big vacuum problem causing a lot of this.

I really appreciate everyone's help.







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    Turbo Hose from MAF to Turbo Vacuum Question- P0103 Code 850 1994

    posted by  KlausC on  Tue Jan 16 13:43 CST 2018
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    last visit: Fri Oct 24 10:15 CST 2014
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    Did you order this:
    http://www.rockauto.com/en/catalog/volvo,1994,850,2.4l+l5,1433977,fuel+&+air,idle+air+control+valve+hose,11202

    The entire idle air control valve is less than $150. Call your dealer back and tell him you only want the hose!

    Find the bottom manifold bolts and get the manifold tightened down. One you dropped could be between the starter and the block. They are needed to seal the intake as well as hold down the manifold.

    The heated element (PCT valve) in the air intake should not freely slip. It can turn, but it is seated in rubber which will make it hard to wobble around.


    --
    Keeping it running is better than buying new








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    Turbo Hose from MAF to Turbo Vacuum Question- P0103 Code 850 1994

    posted by  Chris Mullet on  Tue Jan 16 12:03 CST 2018
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    last visit: Fri Oct 24 09:08 CST 2014
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    "...I did my PCV and my car only had two lower intake manifold bolts. Of course I dropped one and can't find it. Could that cause a significant vacuum leak if all of the top ones are tight and the bottom ones are not?..."

    Absolutely. Get all the bolts in place and snugged-up, then see where you stand.

    I'm not familiar with 850's but is that $150 hose preformed in a shape that you can't use a piece of standard vacuum hose, or a preformed hose from another car (Chevy/Ford/Mopar) that bends the right way? Sometimes you can get a parts person at the local auto parts store that's a bit adventuresome and will search the shelves for something that will substitute for a fraction of the cost.
    --
    Current rides: 2005 Volvo S80 2.5T, 2003 Volvo V70 2.4NA, 1973 Volvo 1800ES (getting ever closer to road worthiness)








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      Turbo Hose from MAF to Turbo Vacuum Question- P0103 Code 850 1994

      posted by  rice240 on  Tue Jan 16 13:39 CST 2018
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      last visit: Tue Aug 26 10:51 CST 2014
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      Thanks Chris. I figured as much. That hose is a strange one for sure. Check it out.

      https://www.eeuroparts.com/Parts/8448/Intercooler-Hose-9161093/


      There is a URO brand o ne for $21.00. But I have never had any luck with that URO stuff. VERY cheaply made.








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        Turbo Hose from MAF to Turbo Vacuum Question- P0103 Code 850 1994

        posted by  Chris Mullet on  Tue Jan 16 13:51 CST 2018
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        last visit: Fri Oct 24 09:08 CST 2014
        [RELATED]

        Ohhhhh, one of those!!

        This one says Porsche but it sure looks the same. (Check out the interesting part number.)

        https://www.pelicanparts.com/More_Info/9161093.htm?pn=9161093-M253&gclid=CjwKCAiA4vbSBRBNEiwAMorER0D6lhN3pmohuEfJkfH9JjtHh5XeJkWBtblNsAAwJnhbpx8QGZ7e1RoCKAIQAvD_BwE

        or from ebay....

        https://www.ebay.com/itm/Volvo-850-C70-S70-V70-Turbocharger-Intercooler-Hose-URO-9161093/350824518516?_trkparms=aid%3D222007%26algo%3DSIM.MBE%26ao%3D2%26asc%3D47300%26meid%3D2425154038dd46d4afbe289bc2429f68%26pid%3D100623%26rk%3D1%26rkt%3D4%26sd%3D172034456229&_trksid=p2047675.c100623.m-1

        or.....

        http://www.new-part.com/product/volvo-850-c70-s70-v70-turbocharger-intercooler-hose-uro-9161093


        --
        Current rides: 2005 Volvo S80 2.5T, 2003 Volvo V70 2.4NA, 1973 Volvo 1800ES (getting ever closer to road worthiness)







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