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Philip John Estrada Posted on Feb 21, 2019
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2007 GMC Yukon starts & runs but it is smoking white smoke and it over heated what will it take to fix it??

1 Answer

MARVIV VIVERETTE JR

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  • Expert 39 Answers
  • Posted on Feb 21, 2019
MARVIV VIVERETTE JR
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Sounds like you might have a blown head gasket. You would have to remove both cylinder heads, send them to a machine shop to have them checked for cracks and warpage. Then reinstall with all new gaskets.

5 Related Answers

Anonymous

  • 1 Answer
  • Posted on Nov 12, 2008

SOURCE: large amount of white smoke on first start of the day

Have you had the injector recall check carried out? There is a problem with these injectors and this produces the symptoms you are describing. I suggest that you contact Isuzu direct for help. They have been very helpful in the case of my trooper

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Anonymous

  • 416 Answers
  • Posted on Dec 07, 2008

SOURCE: my truck blows white smoke

Hello!
There are two differnt reasons for black and white smoke coming from the tail pipe.
Black smoke means fuel runs rich (car getting to much gas). Check fuel pressure/air filter.
In some cases the white smoke means car is burning oil or transmittion fluid. Have tem checked/replaced.
If you can feel a smelly smoke it can be catalytic converter.
In a worsest scenario if car blowing white smoke it can be engine coolant is getting into an engine cylinder from a bad head gasket ,or a warped/cracked head. So you need to keep your eye on coolant level and check your engine for overheat. Also might be good to check your oil for traces of coolant (on a dipstick it would be a milky substance mixture of oil and coolant).
Good Luck

Anonymous

  • 5 Answers
  • Posted on May 26, 2009

SOURCE: renault traffic loss of power and white smoke

if its diesel, attach a tube to pipe leading into primer pump.[black bulb ]. attach a pump . and tube from outlet of pump to container pump out diesel till empty. if petrol locate pipe feed from tank and connect to it same as earlier

bestdarngood

Benjamin Patri

  • 3037 Answers
  • Posted on Jul 15, 2009

SOURCE: I have a 2007 Hyundai

White smoke or semi white can be produced in several ways. One way is oil this is normally a whitish blue to blue smoke and has the apparent smell of oil being burned. Next could be antifreeze when it is being burned it has a sweet type of smell and tends to dissipate in the air rather quickly and usually is because of a bad head gasket. Next is automatic transmission fluid which is normally found on automatic transmissions and its normally drawn into an engine thru a vacuum line via a defective transmission modulator valve or some other defective part. Transmission fluid is very apparent and billows out so bad that you can't see anything behind you. Last but not least another type of smoke that is not white but black is the presents of to much gas/fuel being burned in the engine. If one of these fluids is low and/or you notice one of the symptoms that I pointed out above, then you know where to start looking for a fix.

I would also check your oil for discoloration. If it is a brownish color it could mean your oil and antifreeze are mixing and has the potential to damage your bearings.


Benjamin

Anonymous

  • 3600 Answers
  • Posted on Sep 11, 2009

SOURCE: 2007 Nissan Altima - smoke from tailpipe

It sounds normal white smoke comes from moisture in the air as it's burned and the air temprature is different. it creates steam they gray smoke is a little harder to decide what it is, normally gray smoke is related to oil burning and black is over fuel, depending on how many miles it has on it it could have bad valve guide seals but would not worry about it.

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0helpful
3answers

2007 GMC Yukon starts and running but it's smoking white smoke and over heated what will it take to fix it??

a repair shop NEAR you. If it is smoking and has overheated you HAVE a damaged engine. The more it is driven the worse it will be. Really you should probably get it towed to a shop. Most repair shops can work on it, all of them are going to make some $ off this, as probably minimally a blown head gasket, but likely rod or piston damage. Make sure the coolant is full before you try and drive it anywhere. treat it gently... maybe it will get to the shop under it's own steam if it is close. The only next step is engine seizure... and new engine time. (rebuilt dropped in might be $2000 if you're super lucky)
0helpful
1answer

2005Danali youkon xl 6.litre...nu water pump n thermastat ,no heater...car over heats.

First start with making sure the engine is purged of air, and you have no thick white smoke coming from the exhaust in back. 2 sure signs of a blown head gasket are, thick white smoke. next is , leave the cap off the reservoir/radiator. If it throws the coolant back out at start up, it's bad. Not there, next is to do a compression test on the cylinders. Low or no compression is bad gaskets also. These are the first things to check and do. Before just throwing money at good parts.
0helpful
1answer

I have a 2007 gmc Yukon denali with the 6.2l in the last month it has randomly puffed a bit of smoke on start up what might be wrong only 120k on it

Hi Bryce, For the miles and engine in your vehicle, a bit of visible smoke from the tailpipe on cold start is normal. It indicates a small amount of engine oil is leaking past the "valve-guide seals" in the cylinder head. For now, I wouldn't let it concern you too much because it's actually a VERY small amount of oil making its way into the combustion chamber while you're snoozing.

It only takes a drop or three to produce a huge amount of visible smoke when it burns, and it probably won't even leave deposits on your spark plugs at this point.

This condition isn't harming anything except your nerves, and it won't cause a breakdown or leave you stranded. The oil lost (per mile) is too small to result in the need to check the dipstick more often, but you should get a sense of the loss-rate by periodic checks over a given number of miles.

Top off your oil, and check it every two or three fill-ups, and, my guess is, you won't have to add a quart before driving 1000-1500 miles, which is nothing to worry over, but determine how many miles it takes to use a quart, so you know when to add.

If you want to narrow it down, pop the plugs out and check for any light colored deposits, and note the particular cylinder from which a contaminated plug was removed. You'll probably see little, if any, deposits for now.

Oh, and there are NO magic snake-oil remedies, despite fancy promises on the labels of opportunistic, quick-fix makers. Don't fall for their distractions. The best you can do is to keep up on your oil maintenance. Running dirty oil causes accelerated seal wear.

Happy Motoring!!!
0helpful
1answer

I have a 1997 gmc sierra 5.7 vortec, just changed plugs and wires, now it hiccups at idle, And excessive white smoke and gas smellout the exhaust any ideas?

If you have white smoke out the tail pipe you have a problem with antifreeze entering the fuel system and burning with the fuel .
You see the white smoke isn't smoke its steam from the water in the antifreeze .
Witch leaves with 1 of 2 problems head gasket or intake manifold gasket .
Being that its a chevy engine I would say its the intake manifold they have had a problem with this disgin for over 30 years not enough bolts to much glue .
Over heat this engine once the glue melts and it starts leaking because of the pressure .
The bigger problem you have is if you run this engine the antifreeze will get behind the pistion rings any wreck the engine in under a month.
So do something quickly if you want to save it
Good luck
0helpful
1answer

I had my whole intake replace...but I still have the white or greyish smoke that comes out of the tailpipe at start, and if I sit too long with it running and I take off ...I will have a trail of smoke...

The job was not done well at all,
you know that

Stop using it & try & resolve at the
place that did the sloppy job

I have a feeling that won't go well
& you will pay again somewhere else
0helpful
1answer

What causes a 97 yukon to go dead going down the road and hard to crank during cold weather... and has white smoke coming from tailpipes

If you have a failing alternator that could cause the vehicle to die while you're going down the road.
Also, the voltage regulator, ( usually in the alternator ) can not put a suficient amount of cahrge back in to the battery to charge it to it's peak. This could cause the vehicle to be hard to start in cold weather.

White smoke is usually associated with a bad fuel/air mix ratio. Because of the difference in humidity with the cold air it is not uncommon to see some white smoke from the tailpipes.

I hope this helps you.
0helpful
2answers

Truck puffs out white smoke when its first cranked up and goes away and runs fine

Valve seals are leaking. If it does not use any oil I wouldn't worry about it.
0helpful
1answer

2007 Nissan Altima - smoke from tailpipe

It sounds normal white smoke comes from moisture in the air as it's burned and the air temprature is different. it creates steam they gray smoke is a little harder to decide what it is, normally gray smoke is related to oil burning and black is over fuel, depending on how many miles it has on it it could have bad valve guide seals but would not worry about it.
1helpful
1answer

Big puff of white smoke at start up after sitting for several hours.

white smoke is water
blue smoke is oil.
nest time try and smell the white smoke see if it smells sweet?
if it does its antifreeze.
and also black smoke is fuel (like a leaky injector )
hope this helps
paul
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