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If the leak is against the head, it can burn tracks into the exhaust port faces as if done by a cutting torch.

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โˆ™ 2006-10-07 11:38:35
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Q: What will happen if you do not replace an exhaust manifold that is leaking?
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What could happen if you do replace an exhaust manifold correctly?

If you do replace it correctly, it will work as designed.


Why does the exhaust manifold glow red hot?

Advanced timing can cause that to happen


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It would be a waste of time and money. You would have to make a special adapter to hook the exhaust to the manifold. On a turbo header, the exhaust hooks to the turbo and the turbo to the manifold.


What would happen if a leaking gage manifold were used while trying to evacuate a system to a deep vacuum?

The system becomes contaminated


After a oil change in my 2006 Nissan Sentra I have a white smoke coming out from the rear pipe What is this?

it could be an oil leak.. my boyfriend had that happen to his s10 and he had oil leaking into his exhaust system


Will a valve cover leak cause the engine to smoke on a 1996 Toyota Tacoma?

Yes, it could. What could happen is it leaks as you are going down the road and leaks onto the exhaust manifold and creates the smoke.


What will happen if the power steering fluid is leaking through the plug in switch on the pressure hose on the 2003 dodge ram?

The fluid can get on the exhaust, very slight chance of a fire. If all the fluid leaks out, you will not have steering assist.


Why will a 1990 Buick LeSabre not start after removing the exhaust manifold and installing a new gas tank and fuel pump from a 1990 Chevy Corsica?

Dont laugh when i ask this but I seen it happen before, Is there gas in the tank?


Why would antifreeze leak from intake?

I had that happen once. That's a bad thing. That's either cracked head, blown head gasket, or cracked block.Not necessarily. The intake on some vehicles, especially late models, the coolant circulates thru the intake manifold. You could have a leaking hose or leaking manifold gasket. You would have other problems like cooant in the oil or oil in the coolant if you had a cracked head/block or a bad head gasket.


1998 jeep grand Cherokee speed sensor leaking is this a common problem?

It is something that does happen from time to time. Replace the o-rings on the sensor and the plastic adapter housing it sits in.


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Do you have an exhaust leak? Do you happen to have have an exhaust leak or a damaged water pump bearing?


Why is your 1993 Saturn leaking antifreeze onto your carpet?

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What happen when you are leaking from the nipple?

Nothing....just call someone to lick it !!


What will happen if one cylinder receives more amount of fuel spray from injectors?

exhaust will be smoky. exhaust temperature will be high


What will happen if you ride a 4 wheeler without the exhaust pipe?

nothing will happen it will just sound different


What is a solution for engine backfire on a 2005 Harley Davidson ultra classic?

There are too many reasons this can happen to be positive, however the most common reason is the exhaust pipe is not snug, or bad gasket at the manifold. Where it bolts to the cylinder. If it is not that, you will need a harley mechanic to look at it.


Why is oil in the radiator resivoir 2000 silhouette?

Usually this means a head gasket is leaking somewhere. Or if you happen to have a oil cooler mounted to the radiator that could be be where it is leaking, but this is not usually the case. If you notice whitesh smoke out of the exhaust then it is definitely a head gasket leak. Usually the oil will also contain some coolant in it. It will appear as a whitesh foam. This needs to be fixed bc it will only get worse.


What effects happen when and intake manifold leaks?

your engine will run too lean.


What if you still add power steering fluid to a leaking power steering?

What will happen if u I added power steering fluid to a leaking power steering pump


Is the fuel is ignIted during the combustion cycle by the exhaust manifold?

Nope, the manifold carries out the burnt fuel air mixture (usually 14/1) then it enters the cylinder through the intake valve, then after the piston reaches the top on the compression stroke, your distributor connects the high voltage ignition coil to the spark plug wire, inside the cylinder the spark jumps across the gap between the electrodes of the spark plug and THAT is what ignites the fuel... Now, if the timing is off, or the mixture too rich, some unburnt mixture could go into the exhaust manifold, and the high temperature there might cause it to ignite there, but that is caled a backfire, the noise is like a shotgun and flames go out the exhaust pipe and it may blow up your muffler, but that is very wrong, it shouldn't happen.


Why does your Olds AURORA Idles high when you start it and Something at the bottom rear of the engine is glowing hot?

this sounds like a bad exhaust gasket. since everything in an aurora is computer controlled the exhaust gas regulator/sensor would sense that there's not as much exhaust coming out as there should be and will increase the idle in an attempt to match protocol. it glows hot because of the principle that air is flammable. if hot gases are allowed to escape around the manifold and they meet with cooler air it will cause the manifold to glow red as if it were on fire. it won't get hot enough to actually catch fire but it will cause irreparable damage to the manifold and heads if it's not corrected immediately! without being able to see this happen i can't be sure, though... maybe post a video on youtube and send me a link...


Is it easy to replace the bi-pass Coolant hose to the oil cooler for a Honda 1993 also what would happen if you continue driving when the coolant is leaking?

No its not that easy of a job and if you continue to run it this way, then you could damage the engine.................


What will happen if one cylinder receives more amount of fuel spray from injectors than other injectors?

exhaust will be smoky. exhaust temperature will be high.


Can driving in a car that has a faulty fuel system be harmful?

Depends if its leaking or not. If its leaking I don't think I would drive it your exhaust pipe gets VERY hot when driving even idling and if the gas gets onto the exhaust it could ignite. If its just not sending the proper amount of fuel to the engine I probably would drive it either because no tell how long the fuel pump will maintain pressure. But the worst that will happen is it will stop running and you will have to have to towed. If the vehicle is over fueling, it can wash away the lubricant from the bores, and dilute the oil in the sump. That will cause the engine to seize.


When vacuuming dirty water returned into pool why would this happen?

What type of filter do you have? If you have a DE filter then you may have cracks in the manifold that the tubes slot into or the filter tubes are falling out of the manifold. Either way you will most probably need to buy a new manifold.