Originally Posted by lucky131969

It's obvious that GM had a run of bad replacement sensors for some time. Since the replacements were no longer made of brass, now aluminum, a strong correlation was made by many that there is something intrinsically wrong with the aluminum(in addition to the electronics). So even though there have been a few failures posted with brass replacement sensors(nothing in comparison with the GM aluminum replacements), the standing forum recommendation is for a brass replacement/relocation. In all fairness, the replacements were absolute crap for some time. Some poor guys had them fail very soon after replacement...immediately after install, a few miles down the road, etc. The aftermarket sensors (like the Borg Warner) have proven to be more dependable......and they are made of brass.

There is no telling if GM was ever able to quarantine the lot of bad replacements......probably from lack of feedback from buyers. To the best of my knowledge, while the dealership will warranty the sensor, I don't think they will refund your money. Instead, I'm pretty sure they will just give you another sensor at no charge, but in reality, who is going to risk that? So I'm sure that most cut their losses, and purchased an aftermarket replacement, and called it a day. Problem with that scenario is, GM does not get feedback from the dealers that there is a problem with the replacement sensors, and thus, they do not investigate.

There is one thing for certain...the oil pressure sensors that came from the factory were certainly the most durable.

Originally Posted by SaberD

is this officially the most common problem on c5's or what?

Originally Posted by 8VETTE7

As far as you want to without knowing what your engine oil pressure really is. Or until you hear a lot of wrapping coming from under the hood. Which ever comes first.