Q: Oil light and battery light on.

asked by on January 20, 2017

if oil level is ok then agin indicates oil pressure indicatror in dashboard & battery also why?

My car has 160000 miles.
My car has an automatic transmission.

Oil Pressure Sensor Replacement $104.83 - $442.63 Get a Quote
Alternator Replacement $166.62 - $1297.14 Get a Quote

Hi There, The oil pressure light will usually come on when a few things could be happening. Either the motor is in fact low on oil, the oil pump could be failing or the oil pressure sending unit is not working properly and may be producing a faulty reading. If the engine is in fact low on oil, you may notice the temperature gauge reading above normal temperatures as a result of the lack of sufficient oil in the motor. I would recommend checking the actual oil level in the motor by using the dipstick. Be sure the oil level reaches the "full" mark. If this registers as "full" then you likely have a faulty oil pressure sending unit. Many vehicles also have a safety feature built into the vehicle’s computer system which will shut the engine down completely or trigger a “safe mode” of some kind which will drastically limit the vehicle’s engine power to avoid further engine damage until the oil pressure problem is corrected.

Your battery light will generally come on when there is a fault detected with your charging system or in the event you have a weak battery. As you may know, the alternator is responsible for charging the battery while the engine runs by generating amperage and recharging the battery while the engine turns the alternator. The voltage regulator is a unit that regulates the charging of the battery by the alternator and maintaining a certain amperage while the engine runs. When the alternator is not working properly, this may result in the battery quickly losing charge and the car losing all power as you have described. You may also notice a whining sound as a result of the bearings inside the alternator begin to fail. I would recommend having an expert from YourMechanic come to your location to diagnose and inspect your vehicle.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing


Experienced Mechanic?

Earn up to $70/hr

What others are asking

Timing off
The pinion teeth of the starter motor engage with the teeth on the flex plate, and the starter motor cranks over the engine. I don't see how you could have messed up your timing during a starter replacement. But it...
Door won't shut
Mechanical failure of the door latch is a possibility. Also, if the door or door latch was somehow moved out of alignment the door won't shut properly. An inspection of your door (https://www.yourmechanic.com/services/door-will-not-shut-inspection) should be carried out by a qualified...
Continuous clicking when pushing Start button
The problem is unlikely related to spark plugs or a capacitor. I would recommend having your battery tested, and replaced, if necessary. After your battery is replaced, your throttle should be relearned with a professional scan tool. There is also...
replacing struts. had no problem with driver side but pasenger side giving me fits.
Hello. In order to answer your question I would require a few more details on what you are having trouble with. If you are having trouble aligning the hub / brake assembly with the struts (https://www.yourmechanic.com/services/strut-assembly-replacement), it may be possible...
Car turns over, but will not start. The accelerator pedal produces NO change in engine performance.
Hi there. Check the ignition system and see if the spark plugs have any spark. If the spark plugs (https://www.yourmechanic.com/services/spark-plugs-replacement) have no spark, then check for power to the coil. If the there is no power to the coil, then...
Brake lights are not working.
Check the turn signal switch and see if its sticking in place. A bad turn-signal switch may interrupt the brake light circuit and cause the brake lights to not function. Also a broken wire to or from the brake light...
I was driving down the road and lost power. Stepped on the gas and the car wouldn't accelerate, but didn't rev up either. Got back home on idle.
Sounds as if the throttle pedal position sensor is not responding when stepping on the gas pedal. Try turning on the ignition key to the 'ON' position with the engine off and step on the gas pedal to the floor....
Which one of the hoses can cause air bubbles in the cooling system
Any of the cooling lines when leaking or no sealed properly may cause air to be leaked into the system. This is usually easily fixed by having the cooling system (https://www.yourmechanic.com/services/cooling-system-flush) flushed. I would suggest having a professional from YourMechanic...
Were my rotors really replaced?
The vibration you are talking about can indeed be caused by bad brake rotors and solved by replacing them. However, there are a few parts of the job that, if done incorrectly, can cause the problem to return very soon....

Related articles

2012 Ford Edge vs. 2012 Honda Accord: Which One Should I Buy?
Comparing a small SUV or a crossover to a sedan or coupe doesn’t quite seem fair: while the crossover is likely to cost more, it will also have a different skill set than the car as well as a completely...
The Best Used Cars to Buy for Long Commutes
Most Most of us are faced with the prospect of commuting back and forth to work on a daily basis, but some have a much longer drive than others. When it comes time to buy a car, you need to...
The Best Used Cars to Buy for College Students
You’ve You’ve done it – high school is officially behind you. Now it’s time to head off to a brand new world. College is that and more and you may need a car during your pursuit of a higher education....