Question about 2004 Dodge Ram 1500

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Smoking at higher rpms

115000kms 5.7L hemi dodge 1500 2004 idles ok runs great only smokes when at higher rpms or higher speeds blue smokes

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  • Richard Scordino May 11, 2010

    Depending upon the engines history (maintenance and how used) your engine really should not have worn rings at this point. Have a compression test and leakdown test done, and pay close attention to what the plugs look like. With any luck, you may find that only the valve stem seals have hardened up and are allowing oil to pass through the guides. Testing is always more accurate and important than guessing, especially when dealing with a potentially expensive situation.

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Hi, its time for a ring set job in this vehicle. the blue smoke is a sign of major oil consumption due to bad piston rings. you also have faulty valve seals as well. this is deep engine repair and it will be costly.

If you cant do this job soon, be sure to watch the oil consumption by checking the level regularly and, monitor the oil pressure as well.

Posted on May 21, 2009

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Adjust fuel-air ratio.

Posted on May 21, 2009

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I gather that you let the engine idle and when you give it rpms that there is a cloud of blue smoke
if that is the case it indicates that the valve stem seals are hard /failed and when the engine is at idle ( 15" mercury vacuum in manifold) the oil around the valves is sucked past the stem seals and into the combustion chamber
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sorry to say blue smoke is oil and with what you've described sounds like the oil rings on the pistons have given up the ghost, time for a new engine or a rebuild sorry for the bad news. valve stem seals are the only other thing that will cause exhaust smoke but only when you first start the car never while running. hope i have been of some assistance.

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