I received a 0 psi oil warning. Once I noticed it I immediately turned off the car. What does this mean?

Thanks,
Gilbert

Check your oil level on the dipstick, if it's in the normal range, don't take any chances. Call Cadillac roadside assistance, or use your OnStar and get it towed to the dealer. If it really is zero pressure, then every second the engine is running is doing damage, don't even start it.

It could be a sensor error, a bad wire, etc. It could also be an oil pump failure, so let the dealer find out what's up.

Good luck.

Check your oil level on the dipstick, if it's in the normal range, don't take any chances. Call Cadillac roadside assistance, or use your OnStar and get it towed to the dealer. If it really is zero pressure, then every second the engine is running is doing damage, don't even start it.

It could be a sensor error, a bad wire, etc. It could also be an oil pump failure, so let the dealer find out what's up.

Good luck. I'm going to call my dealer which is about 2 miles and tell them to pick up my car. Damnit!, I just got my car back from service a few days ago.

Did you check the oil level? Do it before you call them, you'd hate to have really low oil level, making it your fault. Just check it and make sure it's in the range. If the stick is dry, add oil to the right level, but check it so that you know before you call them.

In my experience, 90% of the time on non-racing engines, it really has oil pressure and it's a bad sensor, connection, or gauge that's giving the faulty reading. But you have to assume that every time is one of those other 10% of the times, or else, knock, knock, rattle, rattle, BANG!

keep updates posted here when you find out.

Did you check the oil level? Do it before you call them, you'd hate to have really low oil level, making it your fault. Just check it and make sure it's in the range. If the stick is dry, add oil to the right level, but check it so that you know before you call them.

In my experience, 90% of the time on non-racing engines, it really has oil pressure and it's a bad sensor, connection, or gauge that's giving the faulty reading. But you have to assume that every time is one of those other 10% of the times, or else, knock, knock, rattle, rattle, BANG!

keep updates posted here when you find out. I just checked the oil level and it's full. I also changed the oil about a week ago. I'm calling the dealer tomorrow morning since today is Sunday. Hopefully it's just a small error since I don't feel like taking my car dealer for another week.

Yes, do not drive the car. you may have oil, but your pump could have crapped the bed and it is not circulating oil. Remeber it said no pressure, not low oil, and there is a low oil warning. It is problably a computer or sensor glitch.

This is taken from Car & Driver after they tested a "V" in 2003. Not so much zero oil pressure but it does mention a problem with oil sensors... Also a bit in there about wheel hop...

Hope you find it interesting...

=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=

Another problem turned out to be virtual. After a few laps on the Putnam Park road circuit, long before the track had dried enough for us to turn meaningful lap times, the Caddy began reporting high oil temps. When the pavement dried, allowing go-for-it driving, we were unable to make more than two consecutive circuits before the display numbers soared north of 300 degrees Fahrenheit, accompanied by an insistent chime.

We were baffled. On the one hand, even with Mobil 1 synthetic in the sump, oil-related instrument readings are hard to ignore. Imagine Lindbergh, after noting low oil pressure as he sat on that Long Island runway, deciding to take off for Paris anyway. Also, when we popped the hood, the oil level was down almost a quart, and there was a hint of that used-up-lubricant smell we associate with engines whose hearts have ceased to beat. On the other hand, our man Csere experienced nothing of this sort during his Nürburgring preview driving, and we saw no corresponding increase in coolant temps.

Nevertheless, since we wanted the Caddy to survive the Putnam runs, we were cautious, limiting our lapping and short-shifting to keep the revs down. We feel certain a little more driving with a little less constraint would have produced better lap times.

Later, Cadillac engineer Ken Morris explained that the oil-temp monitor in this car is new to GM and has presented some software-calibration challenges. The first 50 cars off the line have exhibited the same problem. It would have been helpful to have known this going into the test.

The third problem we encountered was axle tramp, also known as wheel hop, during hard acceleration from a standing start, and it's one that can't be explained away so easily. Morris notes that with a judicious combination of clutch slip and wheelspin, GM development engineers have finessed 0-to-60 runs in the 4.5- and 4.6-second realm, which is pretty much what we anticipated with this car's Corvette powertrain. Unfortunately, we hadn't been to the GM school of CTS-V launch technique, so our efforts were rewarded by rear-wheel hop, with severity in direct proportion to the level of aggression employed to get the car out of the blocks. It soon became clear that further runs were likely to bring the test to a premature end, whereupon we left off.

Have the dealer flatbed it IMMEDIATELY. Mine had the same issue (even posted here a while back) with full details. The pump check valve can freeze closed (known problem) and is 100% warranty covered including rental for you. My post is here:

http://www.cadillacforums.com/forums/showthread.php?t=34573

Enjoy, and good luck!
-Tim

"The third problem we encountered was axle tramp, also known as wheel hop, during hard acceleration from a standing start, and it's one that can't be explained away so easily."

Axle tramp, I like this. Sounds more derogatory. Lastss should put this in his letter to Cadi...

Regarding the low oil psi. I agree whole heartedly with the others. Don't drive it, unless your looking to get a remanufactured replacement motor and loosing your car for better than a week or more. I had a similar problem on a mustang. The oil pump shaft fell out while driving. By the time I noticed it the damage was done. Spun a bearing!

I agree with Tim -- get it towed.

I had an oil-flow problem early-on with a mis-installed screen on the oil pump inlet.

IOW, my "low oil pres" warnings were factual!

Bob

Well, A service technican came by this morning and he started up the car and the oil psi was back to normal. I was like :wtf: So, I drove my car to my dealer which is only a few blocks away. I just got a call back from the dealer saying that my sensor was bad. Luckily, It wasn't anything serious. I have to drop off my car to the dealer again(sigh). For the fuel feed and the airbag recall. I wanted to install my short shifter today.:crybaby:

Unbelievable, but my OIL PRES LOW warning just went off!

As before, it goes out when engine RPM climbs above 3000.

Last time (5000 miles ago), dealer said it was an improperly installed screen.

(My problem was intermittant last time....)

Bob

Black Beast, well, I'm glad it was a sensor, that eliminates the chance that internal damage was occuring as the engine was being starved of oil.