car is chugging and white smoke comes out the engine.

the plastic water heater pipe cracked and the whole engine bay got soaked, ive replaced the heater pipe and now the engine is idling low and chugging and theirs white smoke coming from the exhaust under acceleration.

My car has 99600 miles.
My car has a manual transmission.

Experienced mechanics share their insights in answering this question :
Hi there;

What you’re describing appears to be caused by a blown head gasket. In most instances, white smoke coming from the exhaust is caused by coolant inside the oil galleys, which typically occurs after an overheating issue or major cooling system failure. This could also be the source of your sluggish performance as well. The best thing to do is have a professional mechanic complete a car is blowing smoke inspection, to pinpoint the reason why this is happening and recommend the right repairs.

How to Identify and Fix Common car Problems ?

Our sources include academic articles, blog posts, and personal essays from experienced mechanics :

White smoke from your exhaust means coolant is exposed to your engine`s combustion process. In most cases, this is the result of a blown head gasket, but a cracked engine block or cylinder head could also be the cause.
Smoke often leaves car engines as a result of overheating. This can be caused by faulty wire casings, heated residues on the engine block and overheated liquids including oil, transmission fluid and brake fluid. There may also be a fault in your coolant system, or your engine may not have enough lubricant.
White exhaust smoke coming from the exhaust pipe on a Focus

If the white exhaust smoke does not fade, it is dense and smells, then it is associated with a coolant leak. In this case, the coolant level of your Focus should be low.

White Smoke

It usually means that coolant is being burned in the engine, which means that something is drastically wrong. The most common cause of this is a blown head gasket, which can quickly lead to an overheating engine.

Faulty fuel injector: Another possible cause of excessive white smoke from the exhaust pipe is a bad fuel injector. The injector can leak or become stuck open and deliver too much liquid fuel into the combustion chamber. The excess fuel causes thick white smoke to be produced and released from the exhaust pipe.
Black exhaust smoke

When your exhaust pipe gives off black smoke, one of the things to get worried about are bad or worn out spark plugs. It means fuel burning in the combustion chamber is not being done 100 percent or burnt fully. It also means that air is not being well mixed with fuel to burn effectively.

Leaking Coolant – If you see white smoke under the hood, it`s most likely burning coolant that has come into contact with the hot components beneath your hood. This smoke will smell sweet.
If there`s burnt fuel inside the engine, the oil filler cap can release a little bit of smoke but not cause the car to overheat. This could also happen if the piston rings are worn out or the PCV tube is clogged. These parts are used to drain off fuel into the cylinder, where it then burns and creates smoke.
White smoke usually means coolant is getting into the combustion chambers of your vehicle. This generally happens because of a cracked or leaking head gasket, which allows coolant to seep into your cylinders. In extreme cases, you will need to replace your head gasket.
Thick white smoke pouring from the exhaust is usually due to a crack in the cylinder head, engine block or head gasket. This is caused by constant temperature fluctuations and a consistently overheating engine due to low coolant levels.
If a valve seal has lost its grip or piston rings get worn, they can cause oil to leak into the combustion chamber. This wayward fuel then mixes with other engine elements and burns, causing white or blue smoke to escape from the exhaust manifold.
One possible reason for white smoke coming from your car`s exhaust is that the engine is burning oil. This can happen if the oil level in the engine is low or if the oil seal is leaking.
One of the reasons for black or white smoke is a malfunctioning fuel pump, making your engine get a rich fuel mixture. In most cases, a bad fuel pump is giving a lean mixture, so this is not a common one.
If a bad oxygen sensor disrupts the air to fuel ratio mixture, or too much fuel is injected into the engine, your vehicle`s gas mileage will be reduced. This excess fuel in the engine can produce a sulfuric, rotten egg smell, and may even produce black smoke from the exhaust.
Can faulty spark plugs make your car blow white smoke out of the exhaust? Yes, they can.. Craig Nicol has it right.. Unburned fuel entering the exhaust can light off in the catalytic converter resulting in white, extremely acrid smoke..
If there`s burnt fuel inside the engine, the oil filler cap can release a little bit of smoke but not cause the car to overheat. This could also happen if the piston rings are worn out or the PCV tube is clogged. These parts are used to drain off fuel into the cylinder, where it then burns and creates smoke.
Clogged Fuel Injectors

If you hear your car engine stuttering, then the injectors may not be providing an adequate amount of fuel. To fix this, you should clean the injectors on a regular basis. Using a fuel injector cleaning solution might eliminate the issue of the car jerking.

Leaking Coolant – If you see white smoke under the hood, it`s most likely burning coolant that has come into contact with the hot components beneath your hood. This smoke will smell sweet.
White Exhaust Smoke

White smoke billowing out of your exhaust means that coolant is likely leaking into the cylinders. This usually happens when there has been a breach in the head gasket, which makes the coolant create this white steam.

If there`s burnt fuel inside the engine, the oil filler cap can release a little bit of smoke but not cause the car to overheat. This could also happen if the piston rings are worn out or the PCV tube is clogged. These parts are used to drain off fuel into the cylinder, where it then burns and creates smoke.
White Exhaust Smoke

White smoke billowing out of your exhaust means that coolant is likely leaking into the cylinders. This usually happens when there has been a breach in the head gasket, which makes the coolant create this white steam.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

I have gray smoke coming out of my tailpipe but it’s not heavy smoke and my car check engine light is orange​ my car shut off
ANSWER : You did not mention why the radiator was replaced but I think your engine was overheated causing the head gasket to go bad. This would cause the white smoke out of the tail pipe and an engine misfire and overheating can cause the check engine light to be on. I recommend having the engine checked for leaking head gasket and scan the computer for codes.

Car exhaust is giving white smoke when I start the car everyday.
ANSWER : Hi there:

Typically white smoke is an indicator of coolant or liquid other than oil or fuel inside the combustion chambers. This can be caused by a blown head gasket (if you had an overheating issue recently) or simple air to fuel ratio issues caused by a mass air flow sensor or exhaust system sensors not working correctly. The best way to know for certain what’s causing these issues is to have a professional mechanic complete a smoke from engine or exhaust inspection.

Engine shuts off, white smoke coming out – 2001 Toyota MR2
ANSWER : Hello. White smoke (steam) makes me think that this is antifreeze. Check to be sure your radiator coolant level is not dropping. If so, could have internal leak to cylinder. A misfiring cylinder is caused by mechanical problems or an ignition or fuel problem. It would probably be wise to do a compression test to rule out mechanical problems. Also, a basic engine timing test would rule out an easy to address issue. Beyond that, both the ignition and fuel systems would have to be thoroughly examined. Since there are quite a few possibilities, I recommend having a qualified professional, like one from YourMechanic, diagnose the smoke problem in order to have this corrected.

White smoke coming from hood
ANSWER : Hi there. White smoke coming from the engine is typically steam as opposed to oil burning, so it’s quite possible that you may have a coolant leak or other issue not related to an engine failure. When the check engine light illuminates on the dashboard, it is due to the fact that the ECU (cars computer system) has detected an error from a sensor or mechanical system. This is actually good news as it makes diagnosing the source of these issue much easier for a professional mobile mechanic. The first thing I would do is have one of our mobile mechanics come to your location and complete a smoke coming from engine inspection first. This will allow them to determine what is causing your issues and recommend the right repairs. In regards to rebuilding engines, or replacement engines, that tends to get rather pricey, typically above $1,500 in most cases; so hopefully your issues are small and can be fixed by one of our mobile mechanics.

car is chugging and white smoke comes out the engine.
ANSWER : Hi there;

What you’re describing appears to be caused by a blown head gasket. In most instances, white smoke coming from the exhaust is caused by coolant inside the oil galleys, which typically occurs after an overheating issue or major cooling system failure. This could also be the source of your sluggish performance as well. The best thing to do is have a professional mechanic complete a car is blowing smoke inspection, to pinpoint the reason why this is happening and recommend the right repairs.

I have white milk coming out of my exhaust pipe but I don’t see it mixing in my oil pan when I check my oil
ANSWER : In most cases, the white smoke is an indicator of coolant finding a way into the combustion chamber. This could happen through a damaged head gasket or a crack in the cylinder head or engine block. Most of the time, this would also be followed by milky oil or overheating problems. However, it could also be a problem with the EGR system, or an extremely rich fuel trim. The best thing to do is have a professional mobile mechanic complete a smoke coming from exhaust inspection, so they can pinpoint the source of your issues and recommend a repair.

White smoke from the engine and smells of rubber with the knocking sound
ANSWER : My guess is that you have a leak somewhere, most likely a coolant leak. Coolant leaking onto a hot engine will immediately result in white smoke. Since you stopped the vehicle before all of the coolant was lost, the vehicle did not overheat. As for the noise, I’m not sure. It could be that the engine fan was running to cool the engine down. Whatever is going on with your vehicle, it sounds quite serious. I suggest you don’t drive it until the knocking sound is inspected by a professional firsthand. YourMechanic is an excellent option since we come to you.

Oil leaking from engine (not enough to leave driveway spots but still a leak) white/grayish smoke on startup only. No smoke while
ANSWER : External leaks could be from any of the oil seals on your engine and the cost to repair would depend on exactly where the leaks are located and how many seals need to be replaced. Certain seals are inaccessible unless the engine is removed, notably the rear crankshaft seal. Of course, as many leaks as possible should be repaired because leaking oil can damage external engine components such as rubber motor mounts. Oil leaking into the combustion chamber that is visible as smoke in the exhaust on start-up is typically due to failing valve stem oil seals. Those seals are replaceable. If you want the sources of the oil leaks identified and the repair estimated, simply request an oil leak diagnostic. If you have further questions or concerns, do not hesitate to re-contact YourMechanic.