oil pressure sending unit

[gijim19]

OK. I bought an oil pressure sensor from NAPA when my oil pressure went sky high and stayed there. I wasn't worried until I changed my oil. I drained a quart....maybe. OK panic time here. I get the unit and now I can't find where the darned thing screws in. And it's not covered in the Haynes manual. This sucks, big time. Any help would be appreciated.

[blazee]

year? engine?

[gijim19]

oops. I forgot to include some info. It's a 1993 4.3L V-6 (non-Vortec)

[blazee]

Should be towards the front on the drivers side, below the exhaust manifold.

[BlazinUP]

anyone know where it is on a 93 vortec?

[blazee]

Originally Posted by BlazinUP

anyone know where it is on a 93 vortec?

Check the passenger side just above the oil pan.

[smokey041369]

4.3 : top,rear of engine,driverside of distribitor
96-4.3 vortec: driverside head between cylinders 3 & 5
96-2.2 :front of engine under thermostat housing
2.2 : looking at passengerside of motor top right of coil pack
2.5: under lifter plate between cylinders 2 & 3
2.8: rear side of oil filter driverside of engine

hope this solves the oil pressure switch questions

[blazee]

Originally Posted by smokey041369

4.3 : top,rear of engine,driverside of distribitor
96-4.3 vortec: driverside head between cylinders 3 & 5
96-2.2 :front of engine under thermostat housing
2.2 : looking at passengerside of motor top right of coil pack
2.5: under lifter plate between cylinders 2 & 3
2.8: rear side of oil filter driverside of engine

hope this solves the oil pressure switch questions

We're talking about oil pressure sending units, not the coolant temperature sending units that you listed.

[Mango™]

If we figure out where it is, my pressure stays high for years now, I need to replace mine too, does anyone have an picture of it, thanks

[blazee]

year? engine?

[smokey041369]

blazee before you try to say i'm wrong check this out for yourself

hayes chevy, gmc s-10& s-15 82 - 93 page2a-2 fig 3.5 page 2c-7 fig7.7b page 2d-2 fig 1.1b

chilton gm s-series p/u & suv page 2-14 fig 41-96 2.2, fig 42-96 4.3. fig 43-4.3, fig 44-2.2

the only change on the 4.3 was in 96

[blazee]

Originally Posted by smokey041369

blazee before you try to say i'm wrong check this out for yourself

hayes chevy, gmc s-10& s-15 82 - 93 page2a-2 fig 3.5 page 2c-7 fig7.7b page 2d-2 fig 1.1b

chilton gm s-series p/u & suv page 2-14 fig 41-96 2.2, fig 42-96 4.3. fig 43-4.3, fig 44-2.2

the only change on the 4.3 was in 96

I don't have those books, I have the Haynes manual for 94-01. The ones you list for the 96 year models are shown as coolant temperature sending units in this book.

[Mango™]

ooops, If we figure out where it is, my pressure stays high for years now, I need to replace mine too, does anyone have an picture of it, thanks

1991 s-10 4.3l v6

[gijim19]

Thanks for the help. I found the unit right away. Now comes the challenge, taking it off. Get this, the new sending unit fits the sending unit socket but the old one doesn't. I hate technology. I geuss it's a good thing I have to pull the distributor anyway, otherwise I'm never going to be able to fit the 1-1/16 wrench I've got to use. Thanks again. The info was great and the rest is on me.

[rlith]

For the record, on all 4.3's it's in back of the motor next to the distributor..Simply use an oil sender unit socket to remove. You will typically need two if it's your first time. The larger one for the stock, the smaller one for the aftermarket unit...