The first problem i have is, when you check the level of oil in the engine its accurate but when you drive for a while a warning sign comes up REDUCE OIL LEVEL. The mistery is, when the engine cools down the oil will be accurate. The second prooblem is,my car was parked for about12days and befor now i seldom drive the car.UNDERVOLTAGE CONSUMER DEFECTIVE come up on the dash so i did not drive the car and i noticed the a/c was not blowing as it should.The next day the battery was down and so i took the battery to the garage for charging after which i put it back on, same problem.
I had the same "undervoltage, switch consumers off" message the last couple of days. Then today, another warning in red appeared "battery/alternator, see service". This was a bad sign. Luckily my car didn't stop dead in the middle of the road on the way to the shop. The service guy said the alternator was bad. p.s. my battery went completely dead about 4 months ago----this was an early warning that the alternator was going bad, but instead I just got a new battery.
Regarding the first problem, there is possibly an oil level sensor issue or vehicle version coding issue(both can be more fully checked at a dealership). The second problem is not uncommon. Obviously, there could be a low voltage if the vehicle sits for a long time or is not driven alot. Sounds like the ac system lost synchronization due to lack of voltage. With vehicle running, you should be able to press and hold recirc/rest or recirc/defrost buttons on ac control panel(can't quite remember which combination). Press and hold until leds start flashing, then the ac system will go through a resynch phase. If it completes this and the led's stop flashing, then it's ok. If it does not and the led's flash very quickly, this indicates an actual malfunction of ac system adjustment motors.
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Are you pulling the dip stick out with the engine running to check the oil level? You are only suppose the check the level when the engine is off. Oil level is high and in accurate while engine is running due to the oil pump pumping oil around the engine. :p
It could be -low oil level-faulty oil pressure sender unit -stuck over pressure relief valve in the oil pump-worn engine bearings The first step is to check the oil level, and if OK, have a mechanic take out the oil pressure sender and substitute an oil pressure gauge. Ask for a look at the reading as the engine is run then.
These gauges are cheap enough if you wish to do this yourself, and you can then install it on the dash somewhere.
Often if the engine bearings are that worn, the car will blow blue smoke and consume oil.
In the meantime keep the revs down as much as possible.
Yes its mentioned correct in manual.The HI indication comes on when there is about 1 quart too much oil. Get the excess oil drained.-----------CHECKING ENGINE OIL LEVEL:-------- A sensor in the oil pan allows oil level to be checked without opening the hood. It provides an accurate measurement of oil level, whereas the low engine oil level indicator warns that oil level is definitely too low. With the vehicle parked on a level surface, the engine is warmed up and shut off for approximately five minutes.When the ignition switch is turned to the ON/RUN position, an ISO oil level icon appears in the trip odometer window and a "clock" icon in the cumulative odometer display. Pressing the knob to the left of the speedometer twice within one second displays one of the following messages: • OK • -1.0 Q (-1.0L) • -1.5 Q (-1.5L) • -2.0 Q (-2.0L) • HI The indicated amount of oil must be added to the engine if the message -2.0 Q (-2.0L) blinks and a signal sounds. The HI message indicates that the excess oil must be removed from the pan to avoid possible engine or catalytic converter damage. If the ISO oil level icon and "clock" icon remain on when attempting to check oil level and no message follows, or if the low engine oil level warning lamp comes on, a malfunction in the engine oil level system is indicated. A conveniently located dipstick allows manual checking of the oil level. If no leaks are noted, continue to drive to the nearest service station where the engine oil should be topped to the "full" mark on the dipstick with an approved oil.--------------------
If you are saying your oil level is low, then you need to add oil to your engine. If you are concerned that the oil level was low after your long drive, it would depend on how long it has been since you added oil or even checked your oil level.Engines will consume oil over a long period of time. Especially if the oil is not changed according to manufacturers recommendations. Unless the low oil level was sudden I would not be concerned. If it happenedsuddenly and in a short period of time, look for an oil leak of indication of the engine burning the oil, such as smoke at the exhaust pipe.
Ok if you have replaced the oil pressure switch, you might want to have a shop put a guage on it, and see if it happens, while the gauge is on the vehicle..Just to get an accurate reading of the pressure from the oil pump itself....Your oil pump maybe going bad, and it is giving you intermidiate warnings...Another way you can check yourself, is let the vehicle run, and while the engine is running, keep checking the oil level on the dipstick, and make a mark of where it is...And when your gauge drops to 0, check it some more...now if the level is the same, then either your oil pressure switch is defected ( evev though you changed it already).. or your instrument panel is going bad... But if the level drops, when that happen, then you know for sure that your oil pump is bad... Goodluck..
Sounds to me like a voltage regulator issue. This is attached to the alternator and monitors how much voltage is sent back to the battery. Any decent parts store should be able to hook up a charging system tool-most common is a Vat-40 and check the system. And they will probably do it for free. If there is an issue with the charging system, then try the voltage regulator first, as opposed to the alternator-there is quite a price difference I assure you. Let me know what you find.
The same thing happened to me and it turned out to be the alternator. Need to replace your alternator. Easy check, start the car and check the DC voltage of the battery, with the car running you should read around 14 volts. If you are reading 12-12.25 volts then the alternator is not generating.