94 80 Series... Oil Pressure gauge stopped working

[SamMontana]

94, 80 series...yesterday had a friend install a new valve cover gasket while I sat and watched with my wine. -inside of the engine looked beautiful btw at 201k. Jumped in it this morning when he called to tell me it was finished and the oil pressure gauge does not work. I followed wires from the pressure switch near the oil filter but found nothing. Could it be a coincidence that this went out at the same time or do you think something got bumped? When replacing parts for this what would you recommend I start with first.

 

[wearsabrowncoat]

I bet there is one thread a month were someone is doing a mod/repair/maintenance where collateral damage occurs. Stuff like that is never a coincidence but that is most peoples first reaction.

 

[half k cruiser]

The oil pressure sender has two wires that clip to it. One goes on a spade connection the other clips to a nipple. Check and make sure they are both getting good connection, you may need to clean the contacts with some sand paper.

 

[SamMontana]

Wires cleaned up and look good. Seems to be a good connection. Other ideas? Its as if the gauge is dead. Does not even flinch with engine running any rpm.

 

[landtank]

pressure sending unit is on the other side of the block from the oil filter.

 

[LandCruisinMy93]

Let me know if you need another gauge, have most of gauge cluster in my garage, can pull the oil pressure gauge for you for a more than reasonable cost.

 

[SamMontana]

Rick...you mean I was dealing with the wrong item? lol (I was looking at the unit next to the oil filter.) I tried finding a good schematic of where things were...guess I failed at that one.

 

[landtank]

the sending unit is under the front exhaust manifold behind the AC compressor. There is a harness that runs under the washer fluid bottle over to the AC compressor and then to the sending unit. The ground wire to the unit usually breaks. It's just a spade connector on the side of the unit.

 

[SamMontana]

To dark outside here to play with now but THANK YOU! I will be all over this tomorrow.

 

[SamMontana]

Rick, Laughing as I type this. Walked out with the flashlight, looked next to the washer fluid bottle and saw it was disconnected right there! Plugged back in and BINGO problem solved. Can't thank you enough as this one would have drove me nutz.

 

[landtank]

No problem glad it was easy.

 

[PanchoLedezma]

No problem glad it was easy.

Hi bro, he other thing he was looking at the side of the oil filter what is it, mine has no cables to it, and i can see the connector alone just being itself..

 

[andersonoverland]

Anyone know where this ground is on a 91 3FE?

 

[Malleus]

The body is grounded on the block, if you're referring to the combination meter gauge and not the oil level sensor.

 

[andersonoverland]

The body is grounded on the block, if you're referring to the combination meter gauge and not the oil level sensor.

Yeah my oil pressure gauge on the cluster is dead too. I have a wire going to a spade connector at the tip of what looks like an oil pressure regulator right below the filter. Is that the sender? Its a silver cylinder thing.

 

[Malleus]

Yes

 

[andersonoverland]

Ok yeah. I see it has a nipple spade connected on the top, but a spade on the side of it is not. Is that an unconnected ground? Can I just ground that to the chasis?