My check engine light keeps coming on and going off and to add to the issue my exhaust is blowing out white smoke in the masses my fluids are all good but im stumped just looking for advice before i take it to a mechanic
I know this not want you want to hear but, just keep an eye out for it, leaky head gasket. I experienced the same thing and let it ride because it would only "puff" smoke ever so often. Until on day it over heating and I knew the water was going some where. If you are really concerned or it smokes all the time start saving $60 for some Blue Devil, just ask your part store, they will know. And that will fix any head gasket problems. The reason for the light though might becasue water in cylinders causeing slight "misfires". Another thing about the Explorers they seem to remember the codes until they are cleared so if it came on and went away you can still see what the code was for and I would suggest that first and foremost before any trip to the machainc. Hope that helped.
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basically it needs tuning and / or cleaning, you can a try an Internal Engine Cleaner Crc Motor Treatment 166.55 eBay. and see if that helps, i understand your worries about the headgasket of water problems, the best way to tell is to take your oil cover off the engine and look for a white substance (mayonaise) if its black or brown its just oil and all is good, but if it is creamy white or going that way then oil has mixed with water and you may have a problem, but with it been white smoke (not to mistaken with steam) then it's prob just a tuning issue.
As you said engine light is on and misfire with white smoke, it clearly symptom of poor ignition spark may cause of any wire got disconnected or spark plug faulty.
white smoke comes only in case no spark at spark plug and un burn fuel throwing from silencer. check wire and spark plug if any issue let me know. thanks.
Black smoke is an indication of too much fuel being delivered and the engine is essentially "flloding" itself.
Most likely a mass air flow sensor or throttle body issue. Try cleaning the body first.
White smoke is a head gasket
Blue smoke is piston rings.
When white smoke is spewing from your exhaust, it is usually an indication that something is burning. The typical culprit is a burning fluid from the vehicle, but other causes are possible.
Oil, transmission fluid and antifreeze are the three fluids most likely to be the cause of white smoke coming from your exhaust. Ruptured seals, leaky bolts and blown gaskets can expose oil to hot spots, making it burn. Pinholes or loose lines can cause antifreeze to spray on the engine, while transmission fluid can be sucked into the engine and burn
Here is a form of solution or prevention which can help you out; Keep your fluids at the appropriate level and change them at the recommended intervals to reduce leaks and maintenance issues. Use the proper types of fluids as well. The wrong transmission fluid can cause your gears to stick and wear down, while the wrong oil can reduce lubrication on the engine and cause internal damage. Improper mixture or wrong type of antifreeze can cause overheating.
If your intake gaskets are leaking, when you dump soapy water on the gasket, it should bubble like crazy ( when it's running). If you can, run it with the rad cap off and watch for bubbles. If it keeps bubbling, you probably have a head gasket problem.
White smoke is caused by coolant or water
coming out the tail pipe. There is a
chance that the white smoke was caused by
water splashing up from a puddle onto the
exhaust pipe. Keep an eye on the
coolant level in the radiator in any event. If its less then there leak coolant leak in the car engine which is causing this problem....