Slowmaro95Z28

I took my car apart yesterday to install my stall converter. Nothing was wrong and I had great oil pressure. I changed my rear main seal while I was in there but other than that just did the stall. I finished this morning and when I was out on my test drive I noticed my oil pressure was down to almost nothing. At red lights it was all the way down and my check gages light came on. I'm looking for a way to tell if I lost oil pressure or just killed a sensor. The engine sounds fine at idle like always. Please help before I go insane.

caldercay

I'm pretty sure I have the answer. If you "dropped" the tranny down from
its cross-member mount, then you probably "crushed" the oil-pressure
sending unit. I know, because I'm guilty of the same thing.

The oil pressure sending unit is located at the BACK of the engine, behind
the intake manifold, and just above the transmission bellhousing. If you
take a small mirror, stand on the driver's side of the car, and hold that mirror
back behind the engine (about in the center) and hold that mirror up against
the firewall, you will see the sending unit . . . it is JUST beneath the EGR.

And let me add ... I bought a "oil-pressure sending unit" socket at Oreilly auto
parts . . . I tried using various sockets/wrenches and NOTHING worked. I ended
up buying the special socket to remove and install the new sending unit. The
socket ran about $16-20 bucks.

The sending unit screws in, "pointing" from the driver's side to the passenger side.
It is parallel with the ground.

Slowmaro95Z28

Holy **** I feel retarded. I just realized i had the motor tilted back far as hell to get the top bellhousing bolts out. Thanks for the help.

gatorhead

iTrader: (4)

You are not the first nor will you be the last to feel like a tard for doing so lol. I agree with what you were told.

Slowmaro95Z28

Shortly after reading this reply I went outside to check and sure enough my oil pressure sending unit was broken. I tried to track a price for a new one on Advance Auto Parts web site and couldn't find anything. I hope this isn't a dealer item.

BOLO

iTrader: (40)

It would be wise to buy oem from GM

caldercay

For my 95z, the Borg Warner part # is S4087 (Made in the USA), bought
from Oreilly Auto.

Slowmaro95Z28

Thanks caldercay, but I don't have any Oreilly's here in PA. I'm wondering if this is the same part as the older TPI motors. If so I think I have one laying around.

gatorhead

iTrader: (4)

http://www.partsamerica.com/ProductL...witch%2fSender
You have to look under switches and this is the link for it

Ironxcross

iTrader: (8)

it went outside for a cigarette, it'll be back when you want to pay it $.50 more an hour.