I may need to replace the Mass Airflow Sensor (MAF) on my 2000 Chevy Silverado 1500, 4.8L V8. The MAF also has the Internal Air Temperature (IAT) sensor built in. I usually replace these types of parts with OEM. My OEM is AC Delco and the price is ~ $160 on Rock Auto. I have also read that some of the OEM parts are Delphi which is available for $86. I do not mind paying the OEM price, but I was curious if people have had any experience replacing this with the Delphi part. I have included the link above.

Thanks in advance!

 

I cannot vouch for that specific Delphi part, but I have almost always been happy with Delphi parts in general, and would not hesitate to choose the Delphi and save some money. Delphi *USED* to be GM's internal parts division, but was spun off as a separate entity in the late 1990's.

 

Thank you jfmorris for the information. I have a rough idle start on cold days, but then idles and runs fine after 30 seconds. This only happens when the outside temperature is below ~50 degrees F. My diagnostics really don't point to the MAF / IAT sensor, but I was curious about the AC Delco versus Delphi part. I performed a smoke test and can see a small amount of 'air' leakage at the intake manifold gasket, so I will need to change that before firing the parts cannon.

 

I've replaced the intake manifold on my 1996 5.0L twice over the years. Both times it was losing coolant, one time rather spectacularly. I would definitely take care of that before the MAF.

I replaced the intake manifold gasket last summer while doing the knock sensors on my 2006 4.8L, and it was much easier on the GMT800 than I remember the job being on the older GMT400. Probably 2-3 hours total to pull the intake, replace the knock sensors, and put it all back together with a new intake manifold gasket. Sadly, one of the replacement knock sensors was defective, and I've got to eventually get around to doing it again...