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Air Conditioning not working properly

I have left my toyota van not running For 3 months (not even started it) and Air con for 6 month, Now i am running this again but Black Smoke is comming from the exhaust pipe and to add more to my problem the engine is knocking and the Aircon is not working properly specially at day time. I have changed the engine oil, mobile filter, spark Plugs, still no response. please assist.

Posted by gulunsu on

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Doug Burke

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  • 8 Answers

My wife once mistakenly topped off the tank with diesel instead of gas. Same symptoms. Gas also goes bad when it sits in a tank for several months without a stabilizer. Try adding a fuel stabilizer and filling the tank with high-octane premium gas.

Posted on Apr 29, 2012

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Toyota Ed

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SOURCE: 1993 TOYOTA TERCEL 1500cc Valve Seals Replaced now smokes much worse

You either have had the wrong valve seals installed, they are physically missing, or the valves are incorrect (too loose in the guides/stem too thin). The rocker arm seals will not contribute to your issue. If it did not have the oil smoke before you took the head off, the issue is with whatever the machine shop did. Valve seals have to fit TIGHT, or oil will go down the valve stem into the intake.
Take the head back to the machine shop & tell them to fix it. For free.

Posted on Sep 27, 2008

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rylee_smith

Rylee Smith

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SOURCE: White Smoke From Tail Pipe/Exhaust

It often means that you are burning antifreeze. You asked if it needs antifreeze, have you noticed any leaking out of the reservoir tank while you are running it? Sometimes when the head gasket goes it will produce a passage for the antifreeze to pass from the capillaries into the combustion chamber. It is easy to check if you have an air compressor. Remove one of the rear sparkplugs and the radiator cap. Fill the radiator and then push some air into the sparkplug hole (get a good seal in case a valve is open). Repeat with all the cylinders and watch for air bubbles coming up into the radiator. If bubbles come up or fluid is pumped out, the head gasket is blown and must be replaced. It is more likely to happen at the back of the engine because it is farthest away from the fan and therefore gets less cooling. Also check your oil for discoloration. If it is a brownish color it could mean your oil and antifreeze are mixing and has the potential to damage your bearings

Posted on Jan 29, 2009

michael

  • 23 Answers

SOURCE: water and white smoke comming out exhaust

your cooling system is preasureising due to a leaking cylinder head gasket the white smoke you see is coolant passing through the exhaust valve on the offending cylinder have the cooling system tested for CO content hope this advice helps

Posted on Feb 24, 2009

jagjeffery

Jeffery Lewis

  • 329 Answers

SOURCE: Exhaust smoke - 1994 XJ6 4.0

you have bad valve seals again and it is possible that the valve guides are bad ( to much play ) i worked for Jaguar 13 years and i have done 100's of these and very few needed guides it sound like the seals where not done correctly at the last repair.

Posted on May 29, 2009

Anonymous

  • 5 Answers

SOURCE: OIL ISSUE

I have for the last 3 years owned a 1993 3.2l and it smokes for a few seconds every time I start it this ls not a problem and it does not use a lot of oil so worry not.

Posted on Jun 03, 2009

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