[kyrel69]

Well got this truck a few months ago and got it back into some what driving shape.

But the Oil gauge is not working but a new sending unit is almost $200.

So is there a way to test it out before I buy a new sending unit or tst the gauge and wiring?

 

[BigBlue]

If the gauge isn't working it's a 99.9% chance it's the sender. You could try and find a junkyard and get one from there or borrow a buddy's and see if that solves it.

 

[Mopar1973Man]

BigBlue is right on... Normally the sender is at fault...:w:

Here is the cluster diagnostic...
Cluster Testing

 

[kyrel69]

ok,, does it change how the motor runs or anything like that.

For the price I might just put a non stock one in.

Dealer wants 200 for it and

local parts stores want 180 for a new sending unit

 

[BigBlue]

Nope. Doesn't change how the motor runs at all. That is unless the oil pump actually quit. In that case it'll roast the motor. If you wanna make sure it's just the gauge and not the actual oil pump then get a mechanical gauge and tap it into the port directly behind the turbo oil feed line on top of the oil filter.

 

[kyrel69]

Nope. Doesn't change how the motor runs at all. That is unless the oil pump actually quit. In that case it'll roast the motor. If you wanna make sure it's just the gauge and not the actual oil pump then get a mechanical gauge and tap it into the port directly behind the turbo oil feed line on top of the oil filter.

That is what I am plaining to do is get a mechanical guage and use it.

 

[Mopar1973Man]

What is being forgotten is that it will toss error codes, trip the check engine light, and check gage light, and chime...

I say hit a wrecking yard and pick one up cheap and still hook up a aftermarket gauge to be safe...:w:

Here is the actions the de-functed gauge will have...​

² Engine Oil Pressure Low Message - Each
time the cluster receives a message from the PCM
indicating the engine oil pressure is below about 6.9
kPa (1 psi) for gasoline engines, or 55 kPa (8 psi) for
diesel engines, the gauge needle is moved to the 0
kPa (0 psi) graduation at the far left (low) end of the
gauge scale, the check gauges indicator is illuminated,
and a single chime tone is generated. The
gauge needle remains at the low end of the scale and
the check gauges indicator remains illuminated until
the cluster receives a message from the PCM indicating
that the engine oil pressure is above about 6.9
kPa (1 psi) for gasoline engines, or 55 kPa (8 psi) for
diesel engines, or until the ignition switch is turned
to the Off position, whichever occurs first. The cluster
will only turn the check gauges indicator lamp on
in response to an engine oil pressure low message if
the engine speed message is greater than zero.​

P0524 Oil Pressure Too Low Engine oil pressure is low. Engine power derated.
(Check Engine Light, Low Oil Pressure Liight and Check Gauges Light will all light up)​

So it can effect run performance...​

 

[kyrel69]

well the check gauge light is on but not the check engine light is not on

 

[Mopar1973Man]

Opps.. my fault... The check engine light isn't suppose to... But I'm sure the error code should be present...

Try the key trick....
OBD II Error Codes

 

[GFB]

New sender is $80 and change from cummins.