Check your oil,- is it foamy?
Examine your coolant. Does it smell like oil?
Is the smoke sweet smelling?
Knocking has nothing to do with a head gasket, sounds like you have multiple engine issues to me.
And finally...if changing a head gasket is simple, why does it cost so much? because if you don't work on cars all the time it is most definitely not simple and includes timing belt removal usually.
Overheating can cause knocking. then refer to the above....
Your best bet is to replace your motor because usually the knocking noise is caused by a spun bearing which would cost a lot to repair.
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The white smoke is from a blown headgasket, your coolant is leaking into one or more cylinders and that's actually steam that you see coming from your tailpipe.
When this happens, your coolant level drops (because it's pumping it out the tailpipe), your car overheats, and of course it will knock as it overheats. An overheated car is sluggish, as well.
Another bad thing that occurs by driving a car with this problem is that the coolant is washing the oil off your cylinder walls and your rings will tear up your cylinder walls as they self-destruct.
Head gasket replacement is not an easy fix nor is it cheap, and usually you'll need to get the head machined to make it perfectly straight again - heads warp from overheating. A good mechanic can do a head gasket replacement in a few hours.
This soudns like engine failure. Probably blew head gasket and ruined the engine due to it being run with bad head gasket too long.
You can find a god used engine with lower miles for around 800 at the most. usually more around 500 or 600 at most yards if you call around.
Labor to replace an engine we charge about 300 to 400 usually.
The car may not be worth doing this with however, some are not.
Most are though, if clean straight and drove fine.
If your vehicle has a Diesel engine, then you may just be looking at 'fuel starvation'! All of the above are to a degree correct - but unlike Petrol engines, Diesel engines are also known to emit white smoke through the exhaust system when fuel delivery to the cylinders is restricted and give off the same appearance as a head-gasket problem.
This could also cause 'sluggishness' or lack of power, bad starting or non-starting and also a low type knocking noise.
Change the filter and check that the fuel lines are not clogged or restricted; you could even possibly run your own fuel supply line from a can to check this part out if it's easier for you!
Start the engine and rev it at about 3,000 rpm for a few minutes or take it for a short drive to see if it still loses power, if it still does then assuming all has been changed and cleaned, you might look to see if there is something in the fuel tank that could be blocking the supply pipe!
No it will not. Has nothing to do with engine knocking. You need to define the word KNOCK. Need to ask your question again. THANK YOU.
ok where is the knocking coming from, brakes, engine ? only happens during acceleration ? if it is truly an engine knock, check oil immediately, but maybe to late, again need more info.
It means over and over again. He continuously made popping noises noises to try and irritate me. This means that he made popping noises over and over again. Hope This Helps!
The rod knocking is caused by loss of oil pressure. Did the oil light not come on? That light is red, red means stop. Do not start this engine again until the problem is corrected. You are probably looking at way more than just installing a new oil pump if the engine was run for very long without oil pressure. A complete overhaul may be in order.
They will be a little sluggish or will look tired (by sinking and suddenly moving again). Sea Medics can cure them noticeably.
Greg solve the problem by knocking on the Rowley door and they be back to friends again.
SOUNDS LIKE THE ENGINE IS OVERHEATING, HOW OLD IS IT ??? ARE ANY OF THE DASH WARNING LIGHTS ON??? COULD ALSO BE THAT YOUR PLUGS NEED BADLY TO BE CHANGED , YOUR GETTING SPARK NOCK, DOES IT DO IT WORSE WHEN YOUR GOING UP HILL AND TRYING TO ACCILERATE??? WHAT YEAR AND WHAT MAKE??? ASK THE QUESTION AGAIN WITH MORE INFORMATION.
Unfortunately, it sounds like your engine bearings (and maybe other parts) are damaged. Refill with oil, and if the noise is gone or almost gone, you are lucky. Otherwise,you will need an engine rebuild, or reoplacement engine.
"knocking" is very broad so just a wild guess here. I think the reason the knocking stops when you disconnect the number 6 injector is; you are creating a "floating piston". In other words, this piston and cylinder are no longer producing power, they are no longer under a load, and they are no longer compressing the fuel that you have prevented from being injected into the cylinder. So, if you have something wrong with that cylinder, such as a bad piston, piston pin, connecting rod, rod bearing, etc., you have relieved the pressure which will quiet the knock. Again, just a wild guess!
Take a look at the engine. If you stand on the side where the variator and the air filter are, to the left of the carburetor you will see a black cap-looking like part. its sitting on an oval-like cap which is held down by 2 or 4 bolts. You have to take the cap off, and you will see the mechanism for regulating the tention of the chain which drives the valves. From what Im thinking the problem seems to be in the valves knocking, which mostly happens due to the chain stretching out with time. Tighten the chain up a little bit, start the engine. As the knocking continues, turn it off and tighten again. repeat as needed.
No, there isn't. If the engine runs too hot, you will start to hear squeaks and strange noises from the engine while driving, as the engine metal parts start to expand because of the excessive heat that will cause the engine's interior parts to have a more narrow space to move. This can burn the head gasket, which needs to be replaced or even worst, can eventually kill the engine, which then needs to it's parts replaced and re-tuned to work again.
I have a magna Executive with a o2 sensor. I have been having problems with ever since I had to replace the main computer under the dash. I keep getting chech engine wring lights on my dash. Since then I have had the engine checked and the o2 sensor repalced only thave to problem come back to me again and again and going back to the dealer. So I disconnected the sensor from the engine to the computer and the engine still starts and I get excelleration and the car runs, though it does run sluggish and feels fuel strvations is there, but yes you can run the car without the o2 sensor especially in a Magna TR....