Oil Sensor Light Blinks at 1600-1800 RPM

10

Asked by Jul 11, 2013 at 03:13 PM about the 2003 Volkswagen Jetta

Question type: Maintenance & Repair

My 2003 Jetta has had both sensors replaced but the oil light is still blinking (only at
times) at either 1600 RPM or 1800 RPM when I am in a high gear and gassing the car
and passing 1600/1800 RPM the light will go on. It use to only flash then turn off when it
would pass one of those two RPMs but now it stays on sometimes a bit longer (the full
blinking rate). I had it in the shop and they had put 15W in it and it had been off for quite
some time but now it has turned on again. They had mentioned it is possibly a wiring
issue? The light only comes on sometimes, not all the time. I know the thermometer on
the car needs to be replaced but I am quite certain that wouldn't have much to do with it?

6 Answers

23,705

wow- that's a bag fulla questions and problems- is it a standard transmission? When I pass a car in high gear, I want more power than I'm going to get at 1800 rpm- I downshift a gear and get it up into the 3000- 4000 rpm range- pushing on the gas at 1800 rpm is stressing your engine trying to use something your car is not big on- torque- I mention this because this is something you have control over and it MIGHT solve your light problem- HOWEVER- there are only 2 reasons why your oil pressure light might come on- either you are losing oil pressure, or there is something wrong with your light- 1st- why would you lose oil pressure when the engine is being stressed? SO MANY reasons that I can't tell you for sure- but- your engine is 10 years old- how many miles are on it? things are getting loose in there, the oil pump ain't what it used to be, even the horses are tired- maybe you shouldn't whip 'em so hard- I would use a heavier weight oil in summer, especially if you live in a hot climate- multigrade 40W or even 50W- I'm sure the other gurus will add some additional thoughts for your mysterious problem- give us more info

1 of 1 people found this helpful.
10

I try not to stress it but sometimes it does happen. I have still been driving it and it is coming on more often even when I am in first gear. It is a standard and it's at 145000 kms. It's a turbo as well. Should I really put 40/50 W in it, won't that cause sludge problems??

10

Oh and just to clarify it is coming on in first gear but still only at 1600 rpm

1 of 1 people found this helpful.
23,705

That's high mileage for a turbo- the engines are under a lot more stress- a turbo engine especially would like a lot of revs- the 40W should be OK- try it but not the 50 for the turbo- could be the oil pump goin' out- could be the engine gettin' tired- try the higher rpms try keepin' your foot out of it- try the oil- drive it like you want the old baby to last-

1 of 1 people found this helpful.
30

I have a flashing light that comes off and on at the below of Number 8 of my RMP guage if I turn my steering wheel ..not necessary I should be on high speed.

2 of 2 people found this helpful.

When you run at higher RPM's the oil pressure is higher. When you slow down the pressure drops. I have not figured out the answer on how to fix it, unless it needs a new oil pump?

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