Let me know what you guys think!

Tiny
CARUNDELL
  • MECHANIC
  • ALL OTHER MAKES ALL OTHER MODELS
Hey,
Let me know if this is something we can expand on?

Chris

http://www.2carpros.com/forum/p0171p0174-ford-40l-common-causes-testing-and-fixes-vt27348.html
Sunday, February 4th, 2007 AT 1:23 PM

3 Replies

Tiny
COSMO
  • MECHANIC
  • 347 POSTS
Nope that sounds about right. The main arear where the gasket blows out is at the back of the plenum at cyl 3 and 6 most of the time.

Cosmo. Mazda TEch
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Sunday, February 4th, 2007 AT 2:17 PM
Tiny
SERVICE WRITER
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Chris.
Your onto something big. Cool. I like this setup for the common issues. Talking about it and seeing it are different. I would like to add this. If it makes sense to do so. If it doesn't, I'm certainly not offended.
I found this and it isn't mine.

It seems that a "missing" engine culprit is actually the computer's sensor inside the Mass Air Flow Sensor (MAF). It eventually just gets a little dirty or builds up its own patina in the filament wires. A dirty or slightly patinated filament will send the wrong air reading to the computer, saying it is getting more air than it really is and the computer will tell the EFI to send in the wrong mix of fuel, thus, the bogging. The patina seems to form faster if you live in a damp climate. If you have had bogging or missing or idle spots, about every 25K miles plan on this quick cleaning job:
When your engine is cool, remove the wiring clip from the side of the black plastic sensor part of the MAF aluminum body. To remove the MAF interior sensor wire, you will need a Security Star (Size T15 or T20) screwdriver or screwdriver bit for a power screwdriver. Remove the two security star-head screws and carefully remove the sensor. You will see the two sensor filaments... They look almost like the filaments on a light bulb. Carefully spray the filaments with an O2 safe carburetor cleaner, such as Gumout. Let it dry thoroughly. I help mine along with a careful blast or two of canned dry air. While it is drying carefully wipe the aluminum mount surface of the MAF body if there is any dust there, but be careful not to get dust in the mount hole. When the sensor is dry, replace the sensor back in the MAF body and secure with the security star-head screws. These don't need to be torqued down, just simply hand tight. Replace the wiring clip. Then start up your engine.

:D
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Monday, February 5th, 2007 AT 1:29 AM
Tiny
CARUNDELL
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Paul,
Yeah, have seen similar posts around the 'net. I'm inclined to be short and to the point, just my style. Maybe some feedback from some of the other big dogs out there is in order! If more info/procedural steps are needed, then by all means! Guys?

Chris

p.S. I really do believe that an entire series of these notes would enhance the site! Not to mention the fact it adds to the overall "mission" of this forum.
Helping the user!
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Monday, February 5th, 2007 AT 12:17 PM

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