Question about 1991 Chevrolet K1500

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WHEN TAKING OFF MY TRUCK IS SLUGGISH BUT WHEN I GETIT GOING IT GOES PRETTY GOOD AND THERE IS OIL BLOWING OUT MY DIPSTICK

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  • smithlenda Sep 30, 2009

    I CHECKED IT WHEN IT WAS COOL AND IT IS FINE, BUT WHEN I PLUG UP THE PCV VALVE TO THE CARBURATOR IT BLOWS OUT OIL FROM THE DIPSTICK

  • Hunter_Green May 11, 2010

    Oil is actually blowing out the dipstick? Do you check the oil with the engine on or off? Because you are suppose to check the oil when the engine is cool. This is because the engine is cool and that allows you to know how much oil your engine has to work with - but if the engine is hot then there is most likely still oil in the engine and checking then will give you an improper reading on the dipstick.

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Hi,
Unfortunately you are going to need fairly major work. From the sound of it - the head gasket has gone - allowing the combustion gasses from one cylinder to get dumped into the oilways - pressurising your sump and probably spraying your engine bay with oil.
Being sluggish is lack of compression - because it is leaking internally - into the oilway.

It's quite a regular shop job, so get a few quotes before booking it in.

Posted on Sep 30, 2009

  • Richard Perkins
    Richard Perkins Sep 30, 2009

    The Pressure Control Valve is supposed to direct any blow-by and oil fumes back into the carb to be burnt - thereby reducing emissions. By removing the PCV valve, you can see how much pressure there is in the sump. With the PCV fitted - this will push oil into the carb and you will burn a lot of oil very quickly.

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