03 Oil Pressure Sending Unit

[Noto81]

I've got an 03 yukon with the 5.3. Long story short my oil pressure showed little pressure while driving and almost none at idle. Then a day or two later showed 80+ while driving. Was told to replace sending unit and that it was near the dis. cap. Its not, anybody know where to find it? Thanks in advance.

 

[Noto81]

Still looking for some help, anyone......bueller, bueller.......

 

[blueflamed03]

see if these post up:

---------- Post added at 01:17 PM ---------- Previous post was at 01:14 PM ----------

Disconnect the oil pressure sensor electrical connector (1).

Installation Procedure


Apply sealant GM P/N 12346004, (Canadian P/N 10953480), or equivalent, to the threads of the oil pressure sensor.

Using J41712 or equivalent, install the oil pressure sensor. Tighten the oil pressure sensor to 20 Nm (15 ft. lbs.).

Connect the oil pressure sensor electrical connector (1).
If necessary, install the engine sight shield.

 

[Noto81]

I must not have looked hard enough. Is the the diagram for the 5.3? The reason I ask is because I've got the part and it doesn't look like the one shown.

 

[blueflamed03]

should, is yours a flex fuel?

 

[Noto81]

should, is yours a flex fuel?

Yes it is, that shouln't matter for the location or part for that matter would it?

 

[blueflamed03]

nope, it shouldn't

 

[Noto81]

nope, it shouldn't

I hope to tear into it this weekend, I'll keep you posted. Thanks for the diagrams.

 

[Eagle]

may I suggest that your most likely issue is the GAUGE MOTOR, not the sensor?

usually it is the speedo that goes first, but they will ALL fail exactly like that.

 

[Noto81]

may I suggest that your most likely issue is the GAUGE MOTOR, not the sensor?

usually it is the speedo that goes first, but they will ALL fail exactly like that.

If that doesn't fix it I know where to look next. Thanks for the help.