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QX4

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Question
Car turns off if keys jingle
It sounds like your ignition switch is failing. This is a common problem with your vehicle as well as its sister, the Nissan Pathfinder. Heavy key chains can also be to blame for premature failure. You will need a qualified...
Question
Car sounding weird after engine fire
I wouldn't recommend driving the vehicle until you have the car checked by a professional. Engine fires can be caused for many different reasons, and leave damage to several components of the car. With all of these issues, I would...
Question
gears not moving into next gear smoothly while accelerating, check engine light on daily
There are a few common causes of the transmission shifting like this. They include the transmission fluid level being low, transmission shift solenoid, or the transmission torque converter. Any of these can cause harsh shifting that can be intermittent. I...
Question
idles rough after heavy acceleration, going up hill, getting off freeway, weak warm start ups
The most common cause of this is either a charging system issue, such as the alternator or battery, or low fuel pressure from a clogged line or failing fuel pump. Either the charging system or the fuel system can have...
Question
power locks not functioning
You are correct that this problem could be related to the smart entry control module. Other possible causes are a wiring issue, blown fuse, or a faulty relay. A qualified technician, such as one from YourMechanic, will be able to...
Question
problems with car choking and stopping dead
There are a few common causes for a car to stall like this. The most common would be the fuel pump, alternator, or a ignition switch fault. I would have this checked soon to prevent further damage. A qualified technician,...
Question
car not starting with new battery, starter making mechanical noises
When the car does not start after the battery was replaced, this indicates that the battery was not the only issue. If the battery was load tested and determined to be faulty, a replacement will generally fix the problem. However,...
Question
Possible electrical issue
This sounds as though you are having multiple problems that would need to be addressed. The broken latch may be the cause of the dead battery, but not the Check Engine Light illumination, or the radio not working; the radio...
Question
Car vibrates and sways back and forth.
There may be a bad component in your suspension that has worn out and is causing the vibration and swaying you're experiencing. There could be various problems at fault here, I recommend having your vehicle examined by a certified mechanic...
Question
P0171
The code P0171 is due to the left bank of the engine running lean and has reached the rich limit for the ECM. Try to have the injectors cleaned and run only high quality fuel that has cleaning additives. This...
Question
Looking at 2004 Buick Ranier with similar mileage, is there a way to tell which one would hold up longer?
If the mileages of the two vehicles are similar, I would recommend going with the vehicle that is in the best condition. I would recommend having a full vehicle inspection performed on both vehicles to determine what problems exist with...
Question
My car ran out of gas and now it won't start - 2001 Infiniti QX4
When you ran the fuel pump dry of fuel, the fuel pump may have seized up. Fuel pumps use the fuel in the tank to keep it cool so it does not overheat and also lubricates the internal parts as...
Question
Where is the Crankshaft Position Indicator on a 1998 Infiniti QX4?
The crankshaft position sensor is typically externally mounted on the engine near the crankshaft pulley. I would recommend checking near the crankshaft pulley for this answer. If you need help with the replacement of the crankshaft position sensor, I recommend...
Question
Fuel pump was replaced but it is still not working.
Hello. If the fuel pump is not coming on, and the fuse and relay are good, then it may be possible that there is a problem with the pump or the fuel pump circuit. The first thing I would do...
Question
Vehicle runs rough and has a knocking sounds. Could it be the transmission?
Hi and thanks for contacting Your Mechanic. Check your drive train in the front, you could have a wheel bearing going out. The reason it stops making noise when you accelerate is because torque is applied on the bearing and...

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