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Water damage and corrosion on my engine harness? 2008 Infiniti qx56
Hello - I guess the first question to ask of yourself is "Is there any chance the vehicle was exposed to flooding, off-road activity where water may have been splashed up onto the engine?". Regardless - corrosion of electrical connectors...
Question
My truck will not start in cold weather and its only 32degrees out
Hi There, You may have a problem with a faulty cold start injector. When you start your car in the morning and turn the key to on, the coolant temperature sensor immediately reads the temperature of the coolant and relays...
Question
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
We need to know how to remove vinyl cover on console between driver's seat and passenger seat.
Normally, the center console lid is held on with screws. The thin metal rod is usually a spring that enables the lid to open easily. I would recommend searching around for any screws that may be mounting the lid to...
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
Navigation control panel screen is black, no power, no light, all other lights on dash are working.
Unfortunately, when the navigation screen in a vehicle goes blank, this usually indicates that the screen has failed. I would be great if there were a fuse for the screen alone but unfortunately, there is only one fuse for the...
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
Car runs bad. Suspect O2 sensor at least. Had exhaust leak due to cracked manifold. Guy welded the manifold and now it runs
Hi John. It's quite possible that the source of your Infinity issues is something simple (like an O2 sensor) or major (such as a catalytic converter that is worn out). The best way to pinpoint the precise source of the...
Question
Transfer case is stuck in neutral.
Hi there. With the vehicle engine running but the transmission in park or neutral, put the transfer case in 4H and see if it will engage. Then try to put it into 4L and see if it will engage. If...
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...

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