MAF Sensor Question
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MAF Sensor Question
I explained in an earlier post that my 4.0 4X4 Ranger was cutting out really bad at 2000 RPM. I checked several things and eventually decided to try running the truck with the MAF sensor disconnected. This eliminated the symptom and the truck ran great. Is that a strong indication that the MAF sensor is bad or could there be an underlying problem I am missing? I visually inspected the MAF sensor and the elements seem to be OK. Is there a test I can perform on the MAF sensor, or should I just figure that the sensor is the problem since it runs fine without it connected?
Thanks!
Steve D
Thanks!
Steve D
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Joined: Jan 2003
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From: Connecticut
Have you tried cleaning the MAF? Worth a shot, IMO.
If you are getting an MAF code and you have disconnected the MAF and found that it clears up the problem, then I'd have to agree that the MAF is probably the culprit.
Testing an MAF is possible if you have the right tools. The following article has some good insight on that and also provides other relevant information regarding the Ford MAF sensor:
http://www.babcox.com/editorial/us/us100126.htm
If you are getting an MAF code and you have disconnected the MAF and found that it clears up the problem, then I'd have to agree that the MAF is probably the culprit.
Testing an MAF is possible if you have the right tools. The following article has some good insight on that and also provides other relevant information regarding the Ford MAF sensor:
http://www.babcox.com/editorial/us/us100126.htm
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Joined: Jan 2004
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From: SW Va
Steve, did you replace the MAF, or just clean it????
If you replaced it, was it new or reman????
If you cleaned it, what did you find & what kind of cleaner & technique did you use????
The details will be helpful to those contemplating doing this!!!
If you replaced it, was it new or reman????
If you cleaned it, what did you find & what kind of cleaner & technique did you use????
The details will be helpful to those contemplating doing this!!!
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I tried cleaning the MAF sensor with some contact cleaner and allowed it to dry. It actually made my running condition worse. I took it back apart and looked at the elements to see if I had broken one while cleaning and they were fine, no breakage. There had been a mouse living in the airbox, so who knows... Anyway, I ended up replacing it with one from NAPA. $90.00 + tax. I looked at the ones they had at O'Reilly and AutoZone but they looked and felt really cheap, although they were about $20.00 less.
For the record, I had been receiving code 157 - Low Voltage To MAF Sensor. It was causing the truck to basically cut out at 2000 RPM. It would run pretty good as long as I was under 2K although the idle did surge up and down some.
For the record, I had been receiving code 157 - Low Voltage To MAF Sensor. It was causing the truck to basically cut out at 2000 RPM. It would run pretty good as long as I was under 2K although the idle did surge up and down some.
