oil gauge problem???

[Jonnydaz53]

so i engage the ignition and the needle on the oil sender goes straight to the top. i have checked the sender and it is good. Any idea what i should check next?

regards jonny

[fanaudical]

Pop the gauge out of the dash and make sure all the wires are connected to the back. (Mine like to vibrate loose once in a while.)

[Jonnydaz53]

i will do it now .... standby

[DRACO A5OG]

And check the ground at the Oil Level Sending Unit at the tank, it lives in a very harsh environment.

[Jonnydaz53]

all connected its not that . should i test the gauge? if so how?
thanks guys

[Jonnydaz53]

draco where abouts is the ground at the oil tank ?

[timmy2]

Find the connection to the tank in the wheel well.
Is there a tube from inside the engine compartment passengers side with a couple of wires in it leading to the oil tank area?
(Assuming for your '66 in your garage as you haven't indicated the year)

[Jonnydaz53]

73 t targa

[zedsn]

Which oil gauge are you talking about? Level, temp, or pressure?

[Jonnydaz53]

i have a later gauge , its this one

[86 911 Targa]

Originally Posted by DRACO A5OG

And check the ground at the Oil Level Sending Unit at the tank, it lives in a very harsh environment.

^^^^^
If it is the oil pressure sensor.

Porsche 911 Oil Level Sender Replacement | 911 (1965-89) - 930 Turbo (1975-89) | Pelican Parts DIY Maintenance Article
^^^^^
If It's the oil level sender.

Best,

Gerry

[Jonnydaz53]

i think its the temp could someone please confirm ?

[zedsn]

Look past passenger side inside quarter panel towards the motor side and you will see a circular unit with 2 wires on it. One feeds the gauge on the dash and the other is a ground. Clean both terminals and then see if gauge works and if not you will more than likely have to replace the float mechanism inside the oil tank itself.

[zedsn]

That is the oil level gauge. and the wires are past rear quarter panel inside passenger side.

[DRACO A5OG]

Look for this:



The smaller wire is the ground.

[zedsn]

exactly!

[tito911s]

I had similar problem recently. Per Gerry's above pic, my pressure electrical switch was loose. As simple (and stupid) as it sounds, make sure it's connected from front to back.


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[SCadaddle]

Originally Posted by tito911s

I had similar problem recently. Per Gerry's above pic, my pressure electrical switch was loose. As simple (and stupid) as it sounds, make sure it's connected from front to back.


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Worth noting, IF the pressure sender is loose DO NOT simply try to tighten it up while it is place on the engine! It screws into a machined block that is fastened to the side of the engine case with a hollow bolt. If you try to tighten or loosen it while in place on the engine one of 2 things are likely to happen: 1) You break the hollow bolt that holds the entire sender and machined block to the engine case, or 2) you don't break the bolt but break your engine case where the hollow bolt fastens it all.

So remove the horizontal hollow bolt and remove the sender with the machined block and chock it up in a vice to tighten or loosen THEN fasten the assembly to the engine with the hollow bolt.