Grey smoke in the trunk. Mazda 6, 2006. How to fix it?
The heat was off, only the radio was on. Driving for 30 minutes and arrived home open the drunk to get the windshield washer to fill up and a lot of grey smoke, really bad smell like a rubber burn. What's going on? The Esso guy mechanic, doesn't know what's wrong.
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You don't mention what that smell is reminiscent of?
You don't mention the colour of the "smoke" and you didn't say whether the engine is petrol or diesel?
You don't mention whether the road behaviour/performance is normal?
White smoke is almost always steam or in the case of a diesel it could be an unburned fuel mist, grey/black is excess fuel and blue or grey/blue is burning oil.
Some steam is fairly normal until the engine and exhaust system is hot but excessive amounts could be one symptom of head gasket trouble. If the engine is drinking coolant and sending it through the exhaust as steam it will sometimes smell spicy.
Burning oil smells a bit like burned eggs in the frying pan.
If the car hasn't ultra-low sulphur oil and fuel the catalytic converter will convert sulphur traces into hydrogen sulphide - the bad egg gas...
By bad smell I take it that you are noticing a smell in the car while driving and not from the rear of the car. I'll also assume that the smoke is coming from under the hood and not the tail pipe. Sounds like you have an oil leak around the top of the engine that is dripping onto the exhaust pipe. I recommend that you clean the engine compartment with a good degreaser like Purple Power or Super Clean. Spray the entire engine down, everywhere you can. Let the degreaser sit for 10-15 minutes and rinse off with a strong stream of water. Repeat as necessary until the engine is free of visible grease and oil. Then buy some engine oil UV dye and put that into the engine oil filler. Save some for the power steering pump (about 10th of a bottle is enough). Get some UV Glasses and a light used for detecting air conditioner leaks. Run the car for 15 minutes down the road. Stop and look for the florescent dye trails to find your leak. This is the hardest part of fixing this problem. After the leak is found the repair is usually minor.
well, driving it 30 minutes after it over heated might have cause serious engine damage, warped head, and other bad engine wear, let the engine cool down park it in a level place and check the fluids, if the water has a milky substance in it then you have a bad problem, if the oil is low then check for leaks, check the transmission fluid for proper fluid level and that could stop the hard shifting.
the smoking could be coming from the fluids that leaked out and when they get hot will start smoking, antifreeze residue will smoke for a short time, it might just need to burn off
no ohter reason for smoke comes to mind under the hood
sounds like maybe the valve cover gaskets 20 to 30 dollars here in canada
not very hard to replace take off the valve cover take out old gasket clean the area good and put new gasket in tighten valva cover down usally untill you see the gasket compress a little being carefull not to tighten to much and either break a bolt ot strip it
I'm assuming that that smoke was more previlant while going uphill because that's when the turbo would be really spolling up to max psi. I would guess that if you really got on the gas hard and got the turbo going even on a flat surface, that you would notice the smoke too. The loss of power and the white/grey smoke are tell tale signs that your turbo is bad or starting to fail. Good luck!