|
|
|
|
| Author |
|
|
Registered
|
Rear oil tank loose wire
Found a disconnected wire on the rear oil tank under the pass side wheel well...did not notice any problems due to the disconnected wire. Maybe Im missing something?
Should a gauge or warning light be affected by this being disconnected? Thanks 
|
||
08-03-2020, 07:11 PM
|
|
|
Registered
|
Believe that's connect (sender?) to the oil level gauge in the car...
Most don't work properly...mine is pegged, I'm to lazy to replace the sender.. |
||
|
08-03-2020, 07:14 PM
|
|
|
Registered
|
That gauge works well and didn’t seem to have been affected. That’s why I’m a little confused to what the wire was connected to.
|
||
|
08-03-2020, 07:53 PM
|
|
|
Registered
|
Those are the only line ran to the tank...
I would clean that area up and see where its suppose to be connected... Still pretty sure it goes to the oil level gauge..( not oil pressure) |
||
|
08-03-2020, 08:07 PM
|
|
|
Registered
Join Date: Nov 2011
Location: Ann Arbor, MI
Posts: 124
|
That's the ground wire to complete the circuit to the oil level gauge. The other wire to the left (black if I recall) is the signal wire. Gauge may still work if the level sensor and gauge are both grounded to the body. The level sensor is attached to the tank, which is hard-mounted to the body (no rubber cushions), so there is a likely path to ground, but the wire makes it certain.
If that is oil (hard to tell), you need a new gasket on the level sensor. Pretty straightforward to R&R. --Dave
__________________
1985 Carrera 3.2 • Prussian Blue Metallic |
||
|
08-03-2020, 09:12 PM
|
|
|
Registered
Join Date: May 2004
Location: Boulder, Colorado
Posts: 7,275
|
If you lift the oil level sensor signal wire, your dash gauge will peg. If there is a break in the winding on the sensor (basically a rheostat), when the slider gets it will peg (so might work in the morning when a lot of oil has drained into the engine sump, but not after you get going and the level in the tank drops, with some flickering in between unless I have this backward).
My diagrams show a white ground wire, but Dave is right. Easy to check if this one is a ground, and hook it up. But no particular need to do so, since your gauge is working correctly. |
||
|
08-03-2020, 10:39 PM
|
|
|
|
Racer
Join Date: Oct 2010
Location: Franklin, TN
Posts: 5,889
|
Quote:
__________________
Scott Winders PCA GT3 #3 2021 & 2022 PCA GT3 National Champion 2021 & 2022 PCA West Coast Series GT3 Champion |
||
|
08-03-2020, 10:50 PM
|
|
|
Registered
|
Quote:
WAS NOT TALKING ABOUT PRESSURE GUAGE...but oil level gauge.... |
||
|
08-04-2020, 04:01 AM
|
|
|
Registered
|
Oil level gauge works too!
Last edited by jgurnari; 08-04-2020 at 07:03 AM.. |
||
|
08-04-2020, 07:01 AM
|
|
|
Racer
Join Date: Oct 2010
Location: Franklin, TN
Posts: 5,889
|
Quote:
Oil level is important because if you don’t have enough oil you are going to have problem with oil pressure as the oil level gets way too low.
__________________
Scott Winders PCA GT3 #3 2021 & 2022 PCA GT3 National Champion 2021 & 2022 PCA West Coast Series GT3 Champion |
||
|
08-04-2020, 08:07 AM
|
|
|
Registered
|
IT IS THE GROUND WIRE!
Sorry for yelling |
||
|
08-04-2020, 10:46 AM
|
|
|
Registered
Join Date: Jul 2000
Location: So. Calif.
Posts: 19,910
|
Visit a DIY car wash and remove that road grit and oil from the underside. Could be hiding corrosion. In addition, it looks awful. Inspect and repair. MHO.
Sherwood |
||
|
08-04-2020, 04:34 PM
|
|
|
Registered
Join Date: Jun 2012
Location: Ontario, Canada
Posts: 114
|
Brown wires are grounds on early 911s. Just sayin’
__________________
1973 911 S Ivory White, 5sp MT 2023 Macan GTS Gentian Blue, 7 sp PDK |
||
|
08-04-2020, 07:06 PM
|
|
|
Registered
|
Just changed my sending unit. Easy to do.
|
||
|
08-04-2020, 07:37 PM
|
|
|
Registered
Join Date: Mar 2016
Posts: 920
|
Something is leaking somewhere. Take the tank down & have it cleaned & pressure checked (or do it yourself). As I recall, the tank hanger bolts (2) have a series of spacers/insulators to mount properly & they're always boogered up and/or installed wrong. Replace the dust shield, tank to inner fender well, replace the sending unit gasket, then route the wiring properly.
Shouldn't cost much for spacer/insulators and a gasket. |
||
|
08-04-2020, 09:19 PM
|
|
Carerra
