1996 Chevy Blazer code P0440

Tiny
TKATT
  • MEMBER
  • 1996 CHEVROLET BLAZER
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 111,000 MILES
My wife took our 96 blazer a few days ago filled it up with gas. A few miles down the road it died. After towing it home and squirting a little starting fluid into the intake it started and seemed to run ok. I drove it a few days and worked ok. Today I took it and after driving the service engine light came on with a code P0440 Evap emission system. Any help please
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Tuesday, March 10th, 2009 AT 7:51 PM

9 Replies

Tiny
BLUELIGHTNIN6
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http://www.2carpros.com/forum/automotive_pictures/261618_Noname_302.jpg



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Tuesday, March 10th, 2009 AT 7:59 PM
Tiny
TKATT
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Thanks for the response, where on the engine are the vent and purge solenoid and fuel tank pressure sensor. Also could a leaking intake manifold gasket cause this.
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Tuesday, March 10th, 2009 AT 8:55 PM
Tiny
BLUELIGHTNIN6
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Only 2.2L have both the vent and purge solenoid. The 6cylinder has the purge solenoid and it is located on top right rear of engine, pictured below..


http://www.2carpros.com/forum/automotive_pictures/261618_Noname_303.jpg



The fuel tank vapor pressure sensor is located on top of the fuel tank.
Yes it is possible that a faulty intake gasket will cause this code to appear and symptoms to occur.

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Tuesday, March 10th, 2009 AT 9:04 PM
Tiny
TKATT
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How tough of a job is replacing the intake gasket can someone with a medium amount of mechanical ability do this or is it a job for the pros

thanks again
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Tuesday, March 10th, 2009 AT 9:24 PM
Tiny
BLUELIGHTNIN6
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It will take a reputable repair shop 3 - 4 labor hours to do this job, depending on if it is upper or lower gasket being replaced.

I don't really like to tell people if I think they can handle a job or not so what I am going to do is post the procedures. You can read over them carefully and decide for yourself if you think you can make this repair safely and correctly. We will be here every step of the way if you do decide to take the project on yourself so don't be afraid to ask questions until you finish the job if you need to ;)

First I will need to know if this is the upper or lower manifold that needs the gasket?

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Tuesday, March 10th, 2009 AT 9:37 PM
Tiny
TKATT
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I think it would be the lower, when you say the upper are you talking about the one below the air intake plenum? The only reason I mentioned the intake is it has been seeping antifreeze for awhile now and I just wonder if it has gotten worse and this is the result. If you could post the procedure that would be great

Thanks for all your help
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Tuesday, March 10th, 2009 AT 9:51 PM
Tiny
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Okay, replacement procedures are below..

REMOVAL:


http://www.2carpros.com/forum/automotive_pictures/261618_Noname_305.jpg



http://www.2carpros.com/forum/automotive_pictures/261618_2_18.jpg



http://www.2carpros.com/forum/automotive_pictures/261618_3_6.jpg



http://www.2carpros.com/forum/automotive_pictures/261618_4_3.jpg



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Tuesday, March 10th, 2009 AT 10:02 PM
Tiny
TKATT
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That doesnt sound too bad. Do you also have procedure for removal of upper air intake plenum

Thanks
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Wednesday, March 11th, 2009 AT 6:25 PM
Tiny
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http://www.2carpros.com/forum/automotive_pictures/261618_Noname_318.jpg



http://www.2carpros.com/forum/automotive_pictures/261618_2_20.jpg



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Wednesday, March 11th, 2009 AT 7:43 PM

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