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Old 11-13-2012, 12:28 PM   #1
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How do you get the MAF sensor off on a 8.1

I've loosened all the hose clamp and I've removed the hose in front of MAF but I can not get section out that holds the MAF. I can feel the front of it with my hand. Is that the part I need to clean or do I need to get it out?
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Old 11-13-2012, 01:46 PM   #2
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Loosen the hose clamps on either side of the sensor, pull the intake tube at the bend back from the sensor and then pull the sensor out from the lid side hose. Make sure to disconnect the sensor before doing this.
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Old 11-13-2012, 02:44 PM   #3
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I finally got it! I don't know if it actually made any difference, but once I rotated the sensor so the flat spot on the sensor was lined up with the notch on tube it slid right out. I sure thought was crazy and it was probably more luck than anything. These forums are great and I appreciate all the help. I tore the paper a little on the end of the filter as I was trying to fit it in so I hope I'm still OK there.
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Old 11-13-2012, 09:20 PM   #4
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Quote:
Originally Posted by captgadget
I finally got it! I don't know if it actually made any difference, but once I rotated the sensor so the flat spot on the sensor was lined up with the notch on tube it slid right out. I sure thought was crazy and it was probably more luck than anything. These forums are great and I appreciate all the help. I tore the paper a little on the end of the filter as I was trying to fit it in so I hope I'm still OK there.
Please align the sensor the same way you found it when you removed it.
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Old 11-14-2012, 05:17 AM   #5
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How close to you to be? I mean I've got the connector on the top side the way I found it but I'm sure that is the exact spot.
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Old 11-14-2012, 05:19 AM   #6
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How much dirtiness should one expect to find? I mean when I got it and looked at it and thought and I went to all that work to find something this clean. But I laid it on the work bench and sprayed the screen part and turned it over and sprayed I guess the sensor side as well.

Thanks for all the help guys.
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Old 11-14-2012, 06:09 AM   #7
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How close do you want me to be? I mean I've got the connector on the top side the way I found it but I'm sure that is not the exact spot.
We're just talking close enough. I am not suggesting that it be returned to the exact degree. The orientation was set the factory. What you need to do is restore the connector to the place where it was found ( + or - 5 to 10)

Some people will try to match up the notch to the lug however it's not supposed to be installed in that position.

(editorial license in filling in your missing words)
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Old 11-14-2012, 07:13 PM   #8
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I found it strange that mine was not lined up notch to lug. I did put it back the way I found it.

As far as how much dirtiness should one expect to find
? Mine looked brand new when I removed it with 40,000 miles in the clock. I sprayed it out anyway and the spray dripping off was as clear as it was coming out of the can. Oh well, it wasn’t all for not since I know it is clean as new.
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Old 11-17-2012, 08:25 PM   #9
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Hmmmm...whatsa MAF Sensor.
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Old 11-17-2012, 10:03 PM   #10
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Mass flow sensor - Wikipedia, the free encyclopedia
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Old 11-18-2012, 11:58 AM   #11
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Hmmmm...whatsa MAF Sensor.
The short answer is that it is a device, Mass Air Flow Sensor that meters the amount of air coming into the engine so that the computer knows how much fuel needs to be injected into the cylinders. The result is expressed as an air fuel ratio where the amount of air is consistent in relation to the amount of fuel.

The A/F Ratio is; Any mixture < 14.7 to 1 (of air) is considered to be a rich (too much fuel) mixture; a mixture > 14.7 to 1 (air) is a lean mixture, (not enough fuel).
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Old 11-19-2012, 03:36 AM   #12
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Thanks for the info and thanks DriVer for your short explanation.
Next question......
What are the indications that the MAF needs replacing?
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Old 11-19-2012, 07:21 AM   #13
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Thanks for the info and thanks DriVer for your short explanation.
Next question......
What are the indications that the MAF needs replacing?
When I had problems with the MAF on my engine, that showed up on a Tech II in the long term fuel trims.

You also want to watch out for oil contamination from those type of oil impregnated air filters. That will ruin a MAF and has caused the replacement of many. Those filters are routinely used but when folks re-charge them they over oil the media.
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