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Ron
Ron, ASE Certified Technician
Category: VW
Satisfied Customers: 33423
Experience:  ASE Certs.
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I have a 2011 jetta with 2.5L and the oïl pressure is not

Customer Question

Hi my name Is Luc And i have a 2011 jetta with 2.5L and the oïl pressure is not good, put the engine to 2000 RPM the pressure climb to 45 lbs but drop to 25 lbs. Release vlave problem?
JA: Thanks. Can you give me any more details about your issue?
Customer: more detail like?
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Submitted: 9 months ago.
Category: VW
Customer: replied 9 months ago.
oïl pan was clean, oïl pick up tube clean of all deposit.
Expert:  Ron replied 9 months ago.

Hello and thank you for your question,

Is the check engine light coming on and if so are you getting any fault codes?

Customer: replied 9 months ago.
no fault code nothing in memory
Expert:  Ron replied 9 months ago.

Is the engine making any noise?

Customer: replied 9 months ago.
no noise from the engine
Expert:  Ron replied 9 months ago.

Im not sure you have any problem here, your oil pressure appears to be with in VWs specs. The factory specs at idle , should be 1.2-2.1 bar (17.4-30.4 PSI) of pressure. At 2000 RPM, there should be 1.6-2.1 bar (23.2-30.4 PSI) of pressure and at 3700 RPM, there should be 3.0-4.5 bar (43.5-58 PSI) of pressure.

Customer: replied 9 months ago.
why at 2000rpm the pressure pass 45lsb and drop to 25lbs a 2000rpm
Customer: replied 9 months ago.
iddle the pressur is 16 lbs a think that is to low no??
Expert:  Ron replied 9 months ago.

23 to 30 PSI is consider normal at 2000 RPM. Im not seeing a problem here if your readings are correct. The pressure need to be measured when the RPM is steady, Yes 16 is a bit low but you stated it was at 25 PSI at idle. So now its at 16 PSI. If you are not getting any engine noise I do not think you have a problem here.

Customer: replied 9 months ago.
you do not have the same spec than me the spec i have is at 2000 RPM 2.7 to 4.5 bar.. so 39.5 to 65 psi.. what is the good spec??
Expert:  Ron replied 9 months ago.

There are the Specs I have.

At idle, there should be 1.2-2.1 bar (17.4-30.4 PSI) of pressure.

At 2000 RPM, there should be 1.6-2.1 bar (23.2-30.4 PSI) of pressure.

At 3700 RPM, there should be 3.0-4.5 bar (43.5-58 PSI) of pressure.

Customer: replied 9 months ago.
idle spec is 1.2 to 1.6 bar ... 17.4 to 23 lbs. why it is the spec that The shop key pro demand give?
Expert:  Ron replied 9 months ago.

Im not sure with shop Key specs. Mine are VW specs.

Customer: replied 9 months ago.
can you tell me why the pressure drop like that?
Expert:  Ron replied 9 months ago.

Im not sure why it drop and Im not sure its a problem if it levels out at steady RPM.

Customer: replied 9 months ago.
ok but the engine oïl pressure light is open on idle the two pressure sensor is new but the light still on
Expert:  Ron replied 9 months ago.

Okay then I would check the signal and connection to them both. See the steps in the link below to do so. Copy and paste the link to your browser to open and view them.

https://dl.dropboxusercontent.com/u/104923897/Oil%20pressure.%20Feb%2016.pdf

Customer: replied 9 months ago.
this verification have been already done
Expert:  Ron replied 9 months ago.

Okay then I am out of ideas. I can open the post back up for you if you would like, perhaps someone else may have something different to offer.

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