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Lori Clayton Posted on Feb 18, 2015
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Why is a very strong gas smell coming from my tailpipe?

White smoke is also coming from tailpipe, but there is no water coming out and I am not using any coolant and there are no other signs of a blown head gasket. It stalls every single time I come to a stop also.

1 Answer

David Harrelson

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  • Cars & Trucks Master 5,456 Answers
  • Posted on Feb 18, 2015
David Harrelson
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Joined: May 06, 2008
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White smoke is water vapor and in this cold climate it is normal. Strong gas smell is not normal although you may smell some while engine is warming up. Bad cat converter can produce smells, but usually more like rotten eggs. If engine is running rough and seems rich, check coolant temp sensor. Bad converter can cause stalling too. Otherwise, idle speed is controlled by idle air contol motor which can get dirty and stick. Any codes set?

5 Related Answers

metroice

steven beasley

  • 105 Answers
  • Posted on Aug 23, 2008

SOURCE: Cracked Head Gasket?

no, but it does sound like your timing is off.

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/stephen_171aeeebef53a898

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Anonymous

  • 3533 Answers
  • Posted on Mar 12, 2009

SOURCE: Smoking out of the tailpipes

it could mean a bad oxygen sensor or intake gaskets and here is place that maybe of help also: Schram auto and truck parts 1-800-292-1032 they sell only GM parts

Anonymous

  • 6982 Answers
  • Posted on Apr 27, 2009

SOURCE: blown head gasket

Look the engine over and see if you can find any external leaks, change the thermostat and make sure that fan(s) are operating.
Check the oil for water...loosing that much, it has to show up somewhere. Blown headgasket usually puts oil in coolant or coolant in oil, causes an external leak from between head and block or goes out through the tailpipe as steam.
look carefully and you will find your problem!!

Anonymous

  • 10319 Answers
  • Posted on May 24, 2009

SOURCE: white smoke and a smell of fuel

The white smoke is from anti freeze. The smell of gas in your oil is probably from the same cause. I do beleive you did not clean the milled ares good enough before installing one or both of your gaskets. Just in case you did loosen one of the head bolts up for any reason....One bolt I do beleive on the right front bank of this engine has to be also sealed before re enstalling it for coolant will pass through it if not sealed

Anonymous

  • 3092 Answers
  • Posted on Nov 05, 2009

SOURCE: what are some signs that a head gasket has been

YES IT IS. ALSO ENGINE COULD RUN ROUGH, AND A NEED TO KEEP ADDING WATER. HAVE A BLOCK TEST DONE, IF WITH BLOCK TEST TURN YELLOW EXHAUST FUMES IN COOLING SYSTEM 99% OF THE TIME BLOWN HEAD GASKET.

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I have a 99 chevy blazer it smoke when you give it gas it dont smell like oil no water is coming the tailpipe it is a strong smell of gas

Sounds like a bad head gasket. This will need to be replaced soon if its bad enough to be smoking. One way to find out if this is the problem, is to look at the oil filler cap, if there is corrosion, white residue, or water, you most likely have a bad head gasket. Also check the oil thru the dipstick, if it looks
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White smoke and a smell of fuel

The white smoke is from anti freeze. The smell of gas in your oil is probably from the same cause. I do beleive you did not clean the milled ares good enough before installing one or both of your gaskets. Just in case you did loosen one of the head bolts up for any reason....One bolt I do beleive on the right front bank of this engine has to be also sealed before re enstalling it for coolant will pass through it if not sealed
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