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Engine smoking but no sign of overheating

I have a 200 ford contour that started to smoke from engine like overheating but coolant is full and the thermostat says normal and no milky residue in oil.There is no smoke from tailpipe. Any suggestions...it doe idle at a high rpm.

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  • Cars & Trucks Expert
  • 179 Answers

Look close for oil leak from your valve cover on the exhaust.
check coolant with cold engine and top to max. next day recheck if yore losing coolant

Posted on Mar 25, 2014

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6 Suggested Answers

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Posted on Jan 02, 2017

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chiquititas
  • 1010 Answers

SOURCE: overheating

If worse comes to worse, hard wire the fan to a toggle switch and mount the switch somewhere in the car that is easy for you to access. That way when you're driving down the road and you notice your temp starting to get a little high, flip the switch and let it run as long as you need it to.

Posted on Jun 23, 2008

Ajkill
  • 2035 Answers

SOURCE: White smoke exhaust

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....

Posted on Oct 19, 2008

  • 341 Answers

SOURCE: White smoke coming out of exhaust even when engine is warmed up.

on the 3.8 ussaualy not the head gasket but the upper intake gasket . antifreeze leaks inside intake and into the cylinder. very common. the new gaskets are much thicker.or the plastic plenum the black plastic part on top of the engine goes bad around the water inlet and need to be replaced . when i do either job itell the person to replace both at same time saves money and headaches in the near future. hopes this helps .....and cost for a shop to do this $1100 to $1500

Posted on Dec 08, 2008

  • 6982 Answers

SOURCE: 1996 Mercury Sable Wagon Overheating

sometimes the radiator is just too plugged to respond to flushing. (happens a lot with a marginal radiator because when flushing, the solvent simply goes around the plugged area, and cannot build up enough force to break it free). From what you have written, this may be the case. Is the electric fan coming on and off at the right times? if not this also can give you similar problems. You have done the right things but may not have gotten the desired result. Hope this info helps you a bit.
good luck

Posted on Apr 03, 2009

  • 651 Answers

SOURCE: 2002 KIA Sedona Overheating

most likely, replace thermostat .

Posted on Apr 14, 2009

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1 Answer

What are causes for overheating?


If the smoke is white you probably have a hole in a hose for the coolant system. But to answer your question you could have a thermostat stuck, fan belt broke or slipping, hole in a radiator hose, or a heater hose with a hole in it allowing the coolant to spray on the hot engine causing it to smoke and if bad enough causing the engine to shut down.

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I have a 97 Ford Taurus I put Marvel oil in it you have been driving for 30 minutes now it runs real real bad lost power overheating and smoking


Umm...

Overheating is either a sign of a thermostat/radiator fault, a coolant leak or a leaking cylinder head gasket.

Smoking is either due to overfilling with oil, worn valve seals or worn piston rings/worn engine.

If the trouble started when you topped up with oil, drain the oil system and try a different oil.

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If the temp gauge is at normal, then what makes you think it is overheating? Are you experiencing water being forced out of the cooling under pressure? That is what makes some think the car is overheating. White smoke from the pipe can be normal, but only for a short time after start-up. If you smell the exhaust and can smell an anti-freeze odor in it, then you probably have a blown head gasket, cracked head, or cracked block. This can cause over-pressurization of the cooling system and coolant overflow. Usually, overheating accompanies this issue and is normally the original cause of it as well.

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Started white smoking and losing a little coolant. Not getting in oil. no power lose. no sign of leaking.


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White smoke from the exhaust is a sign of coolant entering the combustion chamber. You say no coolant loss, or overheating. Is there a white foamy substance under the oil cap, & air bubbles escaping from the radiator? If so you have a leak and more than likely it is a blown head gasket. I would have a cooling system pressure test run. Do not continue to drive this Ford in this condition. Something is not right and you need to find out what is going on.

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Most generally when an engine smokes on start up it is a sign of worn valve guide seals.If this engine has over 150,000 miles on it and/or it has ever been overheated it is very possible that the valve guides themselves may have escessive clearance and are the cause of the valve seal leak.These vehicles have a history of cylinder head problems and if this is determined to be the problem, the only true repair for it is to have the cylinder head rebuilt or replaced.This process can cost upwards of $900.00 to $1,200.00 to do so you might just put up with the problem until it become unbareable. Always be sure to keep the engine oil full and changed on regular interval of 3 mos/ 3,000 miles and use Lucas oil stabilizer to help minimize the oil useage .

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