Mass Air Flow Sensor?

DR1

Joined
Aug 17, 2014
Messages
749
Location
Florida
My 2008 truck has 147k miles on it. My truck seems to be running very strong. Should I replace my Mass Air Flow Sensor for general maint. purposes?
 
I never changed it on my old RAV4 with almost 400k miles. They're expensive. I did take it out and clean with the special MAF spray cleaner about every 6 months.
 
Not likely, but the answer could depend on what kind of truck. I usually have a spare for things like that being I usually am going to fix things for myself and tend to error on some preventive maintenance. Starter, alternator, coils, and recently collecting the throttle body and gas peddle sensor for drive-by-wire, seems if one of these fail you'll be stuck in limp mode at best, and for the easy swap I'd rather have a spare available.

My spares are likely used junkyard parts, but can be new depending on price, realize if new ones fail any warranty may be expired by the time it gets put into service. I rarely have to swap out parts, last few years been a starter, alternator and thermostat that I can think of. Using a spare part for diagnosis can be of value too, but spares can bad parts too, so it's not always fail-proof. My cars are used and intended for service until they are kaput, so spare parts expenses are expected.

Funny thing on that thermostat, not knowing I'd necessarily need it, bought the cheapest slow boat from eBay and one day the thermostat stuck shut, luckily I was going to visit my parents, let it cool, finished a short drive to their house and swapped it out, worked fine and now I got a new OEM spare...I might be getting wiser but still tend to incline for the cheap prices.
 
Tackle your AT fluid, Diff fluids and xfer case fluid.

If you don't have a problem, don't try and fix anything.

I had a 2002 ford Taurus that went to almost 300k with the original MAF sensor. I did clean it once when I changed the intake gasket, using MAF sensor cleaner. I didn't do a **** thing, nothing at all. Learned a lesson that day..
 
Tackle your AT fluid, Diff fluids and xfer case fluid.

If you don't have a problem, don't try and fix anything.

I had a 2002 ford Taurus that went to almost 300k with the original MAF sensor. I did clean it once when I changed the intake gasket, using MAF sensor cleaner. I didn't do a **** thing, nothing at all. Learned a lesson that day..
Thanks. I just did the ATF,diff fluid,and all other fluids. I am big on maint. I love my truck so much!
 
Cleaning it should be easy with a MAF cleaner like the one from CRC. Just be careful. Easier than cleaning the throttle body which I probably wouldn't do again.
 
I have seen a few MAF sensors fail shortly after cleaning with MAF cleaner, (the one that recently failed on me was not cleaned), the fact it sits behind the air filter means if the filter is serviced with any sort of regularity there should be no dirt on it anyway.
The other point is they are a hot wire sensor that has the occasional high temperature heating of the fine wire to clean it. There fine wire sensors are fragile especially when older, it is best to leave one that is working without issue alone, I did remove the whole air box with the MAF in it so that is possibly the reason it failed, think of it like an old incandescent light bulb filament.
 
I now think this thread is a trolling joke. I love my truck so much! used twice. 😐
I am a 50 yr old guy and I have no idea what you mean by trolling? It was a honest question I was asking when I started this thread.
 
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