Originally posted by btrautman:
though you do have to have some flexability to get up in there to say the least



Flexability? I replaced the rear pre-cat O2 sensor. I removed the original one with an O2 sensor socket that the how-to says won't fit in there.

I screwed the replacement in from the BOTTOM because I could not get it to go in from the top. When I tried to put the O2 sensor socket on it to tighten it, I realized that it won't fit because the Bosch O2 sensors are thicker than the original equipment NTK sensors, and the firewall is in the way.

Then I went out to buy a 7/8" wrench and used that to tighten it from the top. (This is where having a 2nd car comes in handy...)

After THAT, I think the oil pressure sender is gonna be easy. I just hate messy jobs, though.

The reason I think it's the oil pressure sender is that the AC compressor is soaked with oil, and it's not from the compressor.