BentAnat
New member
Right - so I spent the last few weeks trawling this forum for info, and have spent a small fortune on workshop fees by now, and this has me stumped, so now I am asking for help.
My '08 model T-Jet 150 is kicking up seemingly random Oil Pressure warnings.
This is the usual "Oil pressure - turn of engine" warning.
HOWEVER:
It NEVER does this on start.
It doesn't do it at any particular interval, time spent driving, temperature, etc
It sometimes doesn't do it for days.
It's not the usual warning you get when you stall the car.
It sometimes goes on, then immediately off again, then on again in rapid succession.
It hardly ever stays on for more than, say, 1 minute.
I have seen it do this on accelleration, on decelleration, on constant throttle, across the rev range.
The car is not leaking oil anywhere that myself, or the mechanics have picked up.
In short: I have not seen ANY pattern to this.
One thing I HAVE seen (but only once) is the water temp gauge dropping as the warning light goes on, then rising again when the light goes off.
I had the car in the shop twice recently for various things (clutch, belts, driveshaft spider joint, etc). In the course of that, the following was done:
Oil Pressure sensor was replaced.
Oil pump was checked.
Oil Filters replaced multiple times.
Full oil flushes (2 of them) were done (hence quite a few filters were replaced)
The mechanic thought (and I agree) that the temp gauge and oil pressure coinciding seems like it could be a grounding issue, so all the grounding wires were checked.
As usual, oil pressure issues don't show in diagnostic logs.
My logic says that the oil pickup is fine... this, judging by the pattern and what was done, seems like a wiring issue.
We all know finding a wiring issue can be a bit like a needle in a haystack.
So my question is: before I spent even more on this, is there somebody here that has had similar issues, and could possibly point me in a direction? Something to try? This has, by now, cost me around 2K Euro, and I am really not in the mood to pay infinity more labour dollars if there's no guarantee that they can find the issue.
My '08 model T-Jet 150 is kicking up seemingly random Oil Pressure warnings.
This is the usual "Oil pressure - turn of engine" warning.
HOWEVER:
It NEVER does this on start.
It doesn't do it at any particular interval, time spent driving, temperature, etc
It sometimes doesn't do it for days.
It's not the usual warning you get when you stall the car.
It sometimes goes on, then immediately off again, then on again in rapid succession.
It hardly ever stays on for more than, say, 1 minute.
I have seen it do this on accelleration, on decelleration, on constant throttle, across the rev range.
The car is not leaking oil anywhere that myself, or the mechanics have picked up.
In short: I have not seen ANY pattern to this.
One thing I HAVE seen (but only once) is the water temp gauge dropping as the warning light goes on, then rising again when the light goes off.
I had the car in the shop twice recently for various things (clutch, belts, driveshaft spider joint, etc). In the course of that, the following was done:
Oil Pressure sensor was replaced.
Oil pump was checked.
Oil Filters replaced multiple times.
Full oil flushes (2 of them) were done (hence quite a few filters were replaced)
The mechanic thought (and I agree) that the temp gauge and oil pressure coinciding seems like it could be a grounding issue, so all the grounding wires were checked.
As usual, oil pressure issues don't show in diagnostic logs.
My logic says that the oil pickup is fine... this, judging by the pattern and what was done, seems like a wiring issue.
We all know finding a wiring issue can be a bit like a needle in a haystack.
So my question is: before I spent even more on this, is there somebody here that has had similar issues, and could possibly point me in a direction? Something to try? This has, by now, cost me around 2K Euro, and I am really not in the mood to pay infinity more labour dollars if there's no guarantee that they can find the issue.
