Question about 2004 Nissan XTerra

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Have a loud engine knock and lots of smoke through the tail pipe

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At best you have a blown head gasket ,, hopefully its not a cracked head have the compression checked,, this will tell you right away, also , check your oil and coolant,, if you have a white milky substance in your oil thats water , and for sure you have a minimum a gasket problem

Posted on Aug 02, 2010

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Posted on Jan 02, 2017

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Hello all I have an accent 2005 CRDI. It starts in the morning After a little ride It stubborns to start and I can see lot of smoke and the mechanic says it is fuel injector problem. Please advice .


Venkata, According to Injectorrx.com: "
Fuel injector symptoms for bad, faulty, dirty, clogged, or leaking injectors are :






  • Starting issues


  • Poor idle


  • Failed emissions


  • Poor Performance


  • Engine does not reach full RPM


  • Increased fuel consumption


  • Rough engine performance


  • Surging and bucking under various throttle loads


  • Smoke from the tail pipe


  • Engine Knock or Detonation which can lead to catastrophic engine failure


  • Pollution"



Venakta: I have had very good luck with a fuel injector cleaner sold by Advanced Auto called KX44 but some people like Seafoam. It is a cheaper place to start than with a mechanic.

Apr 14, 2015 | 2005 Hyundai Accent

1 Answer

My Isuzu Trooper was not revving as usual.Now it is emitting a lot of white smoke. So far,injectors have been pulled out and cleaned, emptied the fuel tank, flushed all fuel pumps and changed fuel filter...


Check the radiator fluid level. If the smoke is not present when it is first started, and after a short time later it begins to smoke, it may be a blown head gasket that is letting radiator water into the combustion chamber. The symptom of, "not revving as usual", would be an inconsistent engine speed at idle. If the fluid level is going down in the radiator, and you don't see fluid on the ground, with the exception of a small drip out the tail pipe when the engine first starts, a small amount of water in the combustion chamber will cause a lot of white smoke. It can be normal for a small amount of water to drip from the tail pipe, depending on humidity, but once the engine is warmed up, the, "white smoke", should not have moisture in it. A paper towel held at the tail pipe for a few seconds should not get wet after the engine is warmed up, and the radiator fluid level should not decrease if no fluid is leaking on the ground.

Mar 28, 2015 | 1995 Isuzu Trooper

1 Answer

When I start engine engine noise or knock, white smoke comes out exhaust,


It is actually steam. The head gasket has failed and the knock is either the pistons trying to compress liquid or the oil has been thinned out from the coolant.

Oct 22, 2014 | 1997 Lincoln Town Car

1 Answer

Valve guide seals


Are you saying you have smoke coming out of the tail pipe ? Or is something dripping onto the exhaust pipe and burning ?
If the smoke is coming out of the tail pipe, is it blue, white, or black ?

Jul 17, 2013 | Ford F-250 Cars & Trucks

1 Answer

My 01 gmc jimmy made a loud pop and white smoke started blowing out from under the hood. Now it makes a knocking sound but not like its low on oil or inside the motor. I dont have water in my oil and now...


The smoke under hood means that u need replace gasket between exhaust pipe and engine but smoke and knocking is not very good, it looks like your engine pistons has cracks and u r loosing oil by smoke time to time, i'd buy used engine from crashed car with less miles on it

Sep 21, 2017 | Cars & Trucks

1 Answer

Knocking sound on thew engine and too much smoke on the tail pipe


If you have blue smoke out of the exhaust, something in the engine has broken. Get a compression test, or take it to a good mechanic to see how bad it is.

Dec 13, 2010 | 2000 Ford Expedition

1 Answer

My 2000 dodge intrepid had a slight knock in the engine, and I'm getting a lot of white smoke from the tail pipe, what could be causing this problem?


CHECK THE OIL DIP STICK AND SEE IF IT LOOKS LIKE CHOCOLATE MILK IF SO THEN THE NOISE WOULD BE A BAD ROD BEARING THE WHITE SMOKE IS COOLANT GETTING IS A CYLINDER AND IT BURNING IT IFTHE OIL LOOKS LIKE MILK THAT IS FROM THE COOLANT IN THE OIL FROM THE HEAD GASKET DONT TRY TO FIX THAT MOTOR FIND ANOTHER ONE

Oct 15, 2010 | 2000 Dodge Intrepid

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