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Oil light is on
Hello There, The oil pressure light will usually come on when one of two things are happening. Either the motor is in fact low on oil or the oil pressure sending unit is not working properly and may be producing...
Question
Sonar light is flashing on and off.
Hi there. Check the sonar sensors for any loose plugs. If the plug on a sonar sensor is loose, then the sonar system will detect an issue and make the light come on. If the light is blinking, that meant...
Question
If my 2004 Nissan Pathfinder is showing a p1273 code, can you fix it?
Diagnostic Trouble Code (DTC) P1273 sets if lean operation is detected. There are quite a few causes but if you have already replaced the oxygen sensor, the ECM has to be cleared of stored "self-learned" mixture ratios, and the DTC...
Question
What if I'm not the first time owner? 2010 Nissan Armada
Hello - Recalls, or a potential recall scenario, apply to any owner of a vehicle, regardless whether you are the original purchaser, or the 5th owner. Check with your Nissan dealer or the NHTSA website (www.nhtsa.gov), which keeps recall repair...
Question
The driver door is dropping when opened, because the frame structure that the door hinge is on is cracking.
This is a serious issue. If you are the original owner and thus can vouch for "no prior abuse", "no collision damage" and so forth, obviously that means one of two things: it is a manufacturer defect or a design...
Question
Put new fuel pump and but will not start my Nissan Armada
Hello, thank you for writing in. The first thing you are going to want to do is verify the installation of the fuel pump. Make sure all of the electrical connections are clean dry and secure. You may also want...
Question
I just bought a this used car two weeks ago. The radiator seam split.
With regard to the cooling system, if the vehicle was professionally inspected prior to sale, such would generally cover visible leaks, low coolant level, obviously rotted hoses, gross corrosion on the exterior metal surfaces of the radiator, visible tank cracks,...
Question
Catalytic converters
Hi There, As you know, the oxygen sensor reads the gases coming from the catalytic converters and as a result, occasionally the oxygen sensors can produce false readings that may otherwise indicate that the catalytic converters are not working properly....
Question
I have a QX56 2012 with 75k-Check engine light went on and dealer informs me it's the catalytic converters
Hello. It is possible that the issue is the converters as I have seen them fail prematurely on many Nissan vehicles. Being that the vehicle is only about 4-5 years old and does not have many miles you should contact...
Question
what could cause my mercedes 560sec to smoke when it warms up but not all the time
A very common failure on your engine when it gets old is the valve stem seals. These little synthetic seals are under the valve springs and are there to prevent the lubricating oil from running down the valve stems into...
Question
Intermittent ticking sound from front of engine
If the ticking sound seems to be dependent on temperature, I might suggest taking a look for an exhaust leak somewhere. Small exhaust leaks will normally begin when cold and diminish as the engine warms, but in my experience, I...
Question
Hiccup while accelerating
There are a number of things that may cause the car to hesitate when accelerating such as low fuel pressure, a dirty or faulty mass air flow sensor, clogged or dirty fuel injectors, a faulty throttle position sensor or potentially...
Question
I have a crunching/grinding noise when turning
If you have 4 wheel drive, the noise might be due to a failed outboard CV joint. Another possibility is brake interference or wheel bearing noise although if you had a defective wheel bearing you would normally hear the noise...
Question
Clunking noise when coming to a stop
If you have the 4WD version of the truck with CV axles in the front, a possibility is a faulty outer CV joint. Such can often be detected on visual exam and with simple tests. Failure of the outer CV...
Question
weird while sitting at traffic light
Hi there. You are correct; this is weird - especially with less than 50,000 miles on your well maintained Nissan Titan. In most cases, this type of situation is caused by an obstruction of transmission fluid inside the hydraulic lines...
Question
Rear end bounces on driver side at 51 2 60 mph
Hello, and thank you for writing in. The vehicle will need to be tested in several ways to test the suspension and wheel assembly at that tire. The first test for your shocks is called a bounce test. Go to...
Question
Front Differential assembly 2010 Infiniti QX56
Hello - "the assembly needs to be changed" seems a bit extreme for a fluid leak. I recommend an oil leak inspection performed by a mobile, professional mechanic, such as one from YourMechanic, who will come to your location, diagnose...
Question
Oil pressure just started pegging out under acceleration.
The engine oil pressure sending unit has failed and is sending the improper readings to the computer and the computer is displaying the improper results. I recommend replacing the engine oil pressure sending unit. If you need further assistance with...
Question
My odometer and the rpm does not work on my 2005 Q56 infinity.
This could be related to a couple of possibilities. The [instrument voltage regulator]((https://www.yourmechanic.com/services/instrument-voltage-regulator-replacement) regulates the voltage supplied to the various gauges in your vehicle’s dash. When this is not working properly, this may cause the gauges in your dash to...
Question
I have a 2012 Nissan titan. The interior lights won't turn on when the door is open but work when the key is turned in the ignitio
Hi there. It is more than likely that the door switch that activates the interior light is the source of your problem. One easy thing you can do to determine this is to see if your door chimes when it's...

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