Silverado Mass Air Flow Sensor

The only comment I have heard on GM Mass Air Flow sensors is:

Do not use an oil coated paper air Cleaner because once the

oil from the air cleaner gets on the air flow sensor wire, the

mass air flow sensor readings go bad & truck runs poorly.

A new mass air flow sensor runs about $300??

I heard that also, I am using a dry paper filter. I think the ACDELCO MAF go for about $80, the after market MAF's are around $300. I don't know if the after market MAF's are worth the additional cost.

Jeff

I run an oil wetted filter on my 99 Silvy and have no issues as you mentioned. What is the source of this info as I would like to research it?

Didn't you have to replace your catalytic converters a few weeks back or am I thinking of someone else?

GM has issued TSBs advising not to warranty certain driveability concerns if an oil wetted air filter (or evidence of such) is found installed.

Larry, there has been a ongoing thing about over oiling and causing problems with the sensor. You probably read the instructions, and didn't get carried away with the oil, most tend to figure more is better and drown the filter. I'll hunt around later today and see what I come up with.

Roy

Yes, I had to replace my cat, but as I recall, I also stated then that the truck has over 180k on the odometer. Jeff sent me the Chevy bulliten info on this and I researched it some and as some one else here mentioned, it is not specifically from an oil wetted filter, but from an excessively (over oiled) filter. I also did not see anything relating any cat issues to the filter.

I am so far out of warranty being a 99 and from milage, I have no concerns over what they will do for me.

Maybe so, I wash it properly let it dry completely then using a misting spray bottle from a gun cleaning kit, I mist it let it soak in and "dry" then re-install it.