Question about Cars & Trucks
Blue smoke indicates burning oil in the cylinders. Could be worn piston rings, worn valve guides, or bad valve stem seals. An engine compression test may help find it, but a cylinder leak-down test is a more precise way to find where compression is being lost. If compression is good, you just may need to replace the old rubber valve stem seals. A shop could do it without having to remove the cylinder head, using an air compressor hooked up into each cylinder while the valve train is being worked on. The air is used to keep the valves from falling into the cylinder while the seals are replaced. About a 4 hour labor cost, so expensive, but a lot less than a cylinder head removal.
Posted on Jul 18, 2013
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Posted on Jan 02, 2017
Have you pulled out the spark plugs to see if there are any tell tale signs on them.They are a good indicator of many problems that occur and can save a lot of time isolating the problem.They should all be the same colour.Is the air box and lid properly secured with no leaks or splits in the intake tube.Have you put injector cleaner in the fuel tank to clear up any possible dirty injectors.Therse a few things your problem could be including engine vacuum leak which you can find by lightly spraying carburettor cleaner around suspect places such as inlet manifold and around injector seals.
Posted on Oct 24, 2008
Is the check engine light on?
A major cause of surging is either air leaks between the air flow meter and the engine intake manifold, or a bad or mis-adjusted throttle position sensor.
Posted on Feb 25, 2009
put a jumper wire between the bottom two pins in the plug for the throttle position sensor, if it idles down you need to replace the idle throttle position sensor
Posted on Apr 09, 2009
SOURCE: smoking at higher rpms
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
SOURCE: throttle hesitation
If you have no vacuum leaks, the injectors could be clogging up (winter gas or old gas can cause that) or the throttlebody may need cleaning. Use the correct cleaner that is O2 sensor safe! Also ensure the air filter is clean.
Posted on Mar 23, 2010
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