maybe an oil pressure sender?????
i just did an oil change, and my jetta's oil light goes off every now and then. it is the 2.0 GL model. the oil is at the right spot, oil pump was changed maybe 5000 miles ago, it did this before too. what could be the issue?
How many miles on motor and what weight oil? Things wear and clearances get bigger and too thin an oil loses pressure.
I've never seen a leaking sensor cause the oil light to come on. These cars have 2 sensors, a low press for idle and a higher press for above 2k rpm, if you don't have enough press above 2k rpm you'll get a light, and same at idle for the lower press one.
Also, what kind of filter are you using? I have heard of people having this problem if they are using certain kinds of filters that vw doesnt seem to like. Try picking up an oem one from your dealer (usually only about $10) and see if that cures it.
Ive been having the same issue during my ownership of my VR (bout 4 months now) but I figured it was just more sketchy VW wiring issues like usual. So ive been Google-ing this some and I saw that some people said it could be a coolant level thing??? http://forums.projektgerman.com/showthread.php?p=129639
I had the same thing. I had replaced all the oil pressure and coolant sensors/senders a long time ago. Turns out that it was part of my cluster going bad. Had it repaired by a3clusters and I don't have any random oil light, no speed sensor errors, no dash flickering, and the startup is smoother, oddly enough.
I have a 1996 Jetta GL. The startup thing was weird and he wasn't sure about it, but whenever the dash wasn't on, after I smacked it, the idle would blip and stabilize. Since the repair, I've had zero instances of this funky issue.
So yeah, if I had something as random as a minor startup idle issue which shouldn't even be related to the dash, it has me wonder what else it could cause besides the oil light and speed sensor problems.
Also, at one point, I had beeping from my dash which meant "low oil pressure". I was advised on VWVortex to bump up to 10w-40 or 15w-40 and that solved it. However, I wonder if it was related to the dash being messed up.
Last edited by Jon8RFC; 06-08-2010 at 03:43 PM.
My oil pressure light started blinking on the way back from going up a mountain. I pulled over and went to add some oil since I know it burns a little, though I had added some recently. Level seemed fairly good though I topped it off anyway and went on my way with no lights. Later that day I was going for another drive and it started again so I checked the level which was fine and figured it must be the pump.
- It's not RPM related (idle to 5k kept it on).
- The engine has around 250k on it.
- Speedo and RPM gauges don't work.
- No beeps.
- No abnormal engine noise.
I'm guessing it is actually the oil pump being either clogged or failed, thoughts?
Is this guide right for an oil pump change? http://forums.vwvortex.com/showthrea...3-oil-pump-diy
Last edited by itsmeee; 08-08-2012 at 09:11 PM.