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Symptoms of a Bad or Failing Coolant Temperature Switch (Sensor)
Common signs include poor fuel economy, black smoke coming from the engine, overheating, and the Check Engine Light turning on.
Symptoms of a Bad or Failing Starter
Common signs include the engine not turning over, starter engaging but not spinning the motor, and grinding noises or smoke when starting the motor.
The Best Used Cars to Buy If You Smoke
No lectures here – you know that smoking is bad for you. In fact, right now, only about 15% of adults in the United States smoke, and that means that over the years, motor vehicle...
How to Get the Smoke Smell Out of Your Car
There are a number of unpleasant smells that a car’s interior can carry around for the entire duration of its time on the road. Among these are the particularly foul...
How Long Does an Automatic Timing Advance Unit Last?
The automatic timing advance unit is a component in vehicles with diesel engines. Of course gas and diesel engines both work on the internal combustion principle, but they are quite different,...
Symptoms of a Bad or Failing Fuel Hose
Signs of a bad car fuel hose are visible cracks along the fuel hose exterior, the smell of gas in the car, and visible fuel leaks under the car.
Why Do Some Cars Have Really Smelly Exhaust Fumes?
Most cars have minimal odor to their exhaust. It smells like, well, exhaust, but it’s not terribly strong. This is thanks in large part to the catalytic converter. However, some cars seem to have really smelly exhaust fumes...
Why Do Diesel Vehicles Emit Black Smoke?
There’s a common misconception among drivers of gasoline engine cars that diesel engines are “dirty,” and that black smoke is emitted from all of them. That’s actually not the case. Take a look at...

Related questions

Blue Smoke After Cold Start
Hello and thank you for contacting YourMechanic. Blue smoke coming from the tail pipe is an indication of the engine burning excessive engine oil. Check the PCV (Positive Crankcase Ventilation) valve to determine if it is operational. The oil...
I need to find a shop to get my head gasket replaced and cam the car
White smoke blowing out of the exhaust can be caused by multiple issues besides the head gasket being damaged. It may be a problem with the oil pump, a damaged sensor, issues with valve guides or the piston rings as...
Check Engine Light is on with trouble code P0014.
Hello, this over-advanced camshaft timing is a significant problem, and should be checked out ASAP by a professional mechanic. Trouble code P0014 indicates a problem probably due to worn timing chain guides, a stretched timing chain, or a weak timing...
Cracked valve cover
Good question and I hope I can help you fix your issue. Your car may not be starting due to your valve cover being cracked. It may also not be holding enough pressure in the engine to start. However, we...
if the AC compressor is seized can the belt smoke when it is turned on?
Hi and thanks for contacting YourMechanic. If a serpentine belt goes around an a/c compressor clutch pulley and the compressor is locked up, it is okay to have the belt as long as the a/c compressor clutch is not activated....
Smoke from exhaust still after new PCV and turbo
Hi there, thanks for writing in. I am sure that you have driven your car far enough (since repairs) to rule out residual oil in the exhaust system. The P0015 "cam retard" code may be a cam sensor, oil control...
My car is overheating and coolant is leaking
This may suggest a blown head gasket. When this happens, the cylinder head gasket fails which can cause coolant to leak into the combustion chamber causing it to be ignited with the fuel. This is what causes the light colored...
I own a 2000 mercury sable LS DOHC and yesterday I changed my cyclinder 3 coil and my car ran better then ever but I went to start
Hello. There are 2 likely sources of the white smoke - which is engine coolant getting into the exhaust system. The lower intake manifold gasket can leak coolant into the air intake and a blown headgasket - common on these...
My car is losing coolant from tailpipe
Hi there. According to what you've described, it does sound like your mechanic was correct; a blown head gasket. The radiator reservoir leak may have lead to the blown head gasket by causing a low coolant level, thus resulting in...
Misfiring Engine
Hi and thanks for your question. When you see white smoke coming from the engine or at the tail pipe, this is water and ethylene glycol mixture burning off. The smoke should smell sweet. If the smoke smells sweet, then...
I just bought a used 99 Honda Accord V-6 2-door and I noticed steam or smoke coming from under the hood, at a drive thru
Hello, thanks for writing in about your 1999 Honda Accord. From what you've described, I think your issue is fairly simple. You probably just need a new thermostat. However, to avoid any unnecessary repairs, I would recommend having one of...
Rich run, bad start, sometimes white smoke
The white smoke is a bit worrisome - usually an indicator of a blown headgasket, which will also cause rough running, especially at low speeds from a compression imbalance. The throttle position sensor may also be sending "off" signals to...
My car is running was smoking from under the hood, after a little bit of cooling, the smoke stopped, but it still smells
I believe you have a bad thermostat. Symptoms of a bad thermostat are coolant boiling over and very tight upper radiator hose. The smell is going to be because of the antifreeze on the engine. No worries that will go...
My catalytic converter is rattling and there is smoke coming from my car. Is the catalytic converter faulty?
It is possible the catalytic converter got hot enough to fail on the last trip you took before this started. No pressure from the exhaust is a good sign that the car can't breath. This may be because it cannot...
Smoke and possible oil leak after having oil serviced
Hi there. Since you drive the vehicle so little it can still be residual oil. It can take some time for it to burn off, especially if it pools up when it is spilled. If there is no oil left...
The car has no power, the ignition relay keeps making a clicking noise, and the car won't start
I suspect you have a dead (or very low) battery, a failed alternator, and an electrical circuitry problem as well. It may be hard to tell which came first if there is wiring damage already. The clicking you hear is...
A little bit of white smoke comes from the motor when I get off the highway and come to a complete stop. It smells like burning oil.
Hi there. It sounds like you may have an oil leak(s). The smoke and smell you are experiencing is the oil being burned off by the engine and exhaust heat. The source of the leak may be slightly difficult to...
Fuel burning rich, black smoke
As you may know the oxygen sensors which are part of your emissions system read exhaust gases to determine whether or not the appropriate amount of oxygen is present in the exhaust. Based upon this reading, this information is relayed...
Oil consumption
The white smoke generally suggests you may have a blown head gasket. When this happens, the cylinder head gasket fails to seal off the combustion chamber as it should which causes oil to leak into the coolant system and water...
Smoking and smell of antifreeze
If you engine just started to pour white smoke out the exhaust then most likely you just blew your head gasket. It could be from overheating or corrosion inside engine caused the head to leak coolant into the cylinders and...

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