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p03005 + no compression S70

posted by  n1fcc on  Wed Mar 16 21:23 CST 2011
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last visit: Sun Mar 27 12:11 CST 2011
[RELATED]

my 1999 AWD started running rough and the CEL came on P0305.

Moved the coils and changed the plugs with no change. Did compression check on CYL 5 NADA. Did a umm leakdown test and it shows as the exhaust valve. Tried an Italian tuneup for maybe 10-15 miles running about 3k-3.5k.

The shop says the time to pull the head will be the same time needed to replace the engine. If it was a plane Id just pull the cyl, give the valve a whap with a mallet.

Any Ideas before I send her to the crusher.

Dave








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    p03005 + no compression S70

    posted by  KlausC on  Wed Mar 16 22:02 CST 2011
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    last visit: Fri Oct 24 10:15 CST 2014
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    Try a bottle of Seafoam sipped in through the vacuum line to soften the deposits. Then wait the prescribed time and do another tune up run. You can easily go 4-5K rpm in 2nd, if you have a highway to do it on.

    BS on labor to replace head = to replacing engine with unknown.

    Klaus
    --
    Always willing to listen, just not able to take direction.








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      p03005 + no compression S70

      posted by  n1fcc on  Thu Mar 17 06:11 CST 2011
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      last visit: Sun Mar 27 12:11 CST 2011
      [RELATED]

      Where is the vacuum line that i would use to connect this seafoam can

      Dave








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        p03005 + no compression S70

        posted by  KlausC on  Thu Mar 17 09:39 CST 2011
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        last visit: Fri Oct 24 10:15 CST 2014
        [RELATED]

        Use any line that connects to the intake manifold. If you remove the throttle body cover, you will see a vacuum tree with a couple of spare covered nipples. Attach a small line to one of the nipples.

        Just remember, there is enough vacuum at idle to suck up the entire bottle! That will break your engine, or a wrist pin, so dip the vacuum line in the bottle and let the engine 'sip' the liquid as you repeatedly dip the line at about 1 second at a time. Read the instructions on the bottle! Pour the other half of the bottle in the gas tank to help clean the injectors.

        Klaus
        --
        Always willing to listen, just not able to take direction.







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