blackbyrd

iTrader: (14)

that is the tall sensor on the back of the engine block next to the cam sensor right

how tight is that sensor supposed to be there is a gap between it and the engine and i cant budge it any tighter also what size is the bolt on it??

LS1MCSS

iTrader: (18)

There isn't a bolt on the oil presure sender. It screws straight into the block and uses a sealing washer to prevent leaks.

TheLS1Kid

iTrader: (12)

The oil pressure sender is right behind the intake manifold.

The brake booster vaccum line runs behind it.

blackbyrd

iTrader: (14)

right but it has a nut below the plastic part and i cant find a wrench that will fit it and i cant get it tightend down for that washer to meet the block

sroach20

iTrader: (31)

go to your local auto parts and buy the oil sender socket. it is specifically made for this unit and is an invaluable tool.

blackbyrd

iTrader: (14)

ahh thanks so much

TheLS1Kid

iTrader: (12)

Yes there is a special tool.

LS1Silverado05

iTrader: (41)

A deep impact socket seems to fit mine.. I am sure you could break it if you werent straigh on, but it works for me.

blackbyrd

iTrader: (14)

ok so i went and bought the socket and it didnt fit, it was to big

got it at advance auto parts and it said gm oil sendor socket on it
is there more than one size??

bczee

iTrader: (12)

torque to 14-15 #'s.

The tool is a deep 27mm socket or a 1 1/16" deep socket will also work (need about 2.5" deep to clear). A Snap-on A120 should do it..

blackbyrd

iTrader: (14)

thanks thats what i needed was a size for this thing looks like i will be tool shopping after work

socmguy

iTrader: (18)

I just used a 12" crescent and it worked fine with the intake off.

2000Hawk

iTrader: (5)

I think mine is starting to act up, last night i noticed the gauge showing my pressure alittle below 80psi and i was cruising at maybe 2k rpms. Im definetly going to change it out though when i swap to an LS6.
-Joel

King Nothing

iTrader: (9)

good chance of it breakin anyway so that's a smart decision i had to drive 30 miles to find an oil sendin unit in stock and when i was there i bought an Sensor Socket . . . bought it at autozone and if i remember correctly it was called an 02 sensor socket not a oil sending unit socket.