Q: O2 sensor on exhaust manifold...is it upstream or downstream...09 Nissan Altima

Your car is equipped with a screen that displays a wide range of different information pertinent to your trip called the trip information display. The information here ranges from the outside temperature to the average fuel mileage and more. To...

Your car is equipped with an Anti-Theft Alarm system, but this can also double as a panic alarm if you feel threatened. By setting off the panic alarm, you can draw the attention of passersby. Here’s how to work it:...

Hello! A knock sensor code can indicate faulty wiring to the sensor, or a faulty sensor itself. The wiring of the knock sensor can be checked by performing a continuity test, and the resistance of the knock sensor can be...

Hi there, thanks for writing in. Body shop prices vary widely, mostly based on where you are, and how good the body shop is. If both your rocker panels are truly rusted out, it will probably far exceed the value...

Your vehicle's blower speed selector controls voltage to the blower motor using two different circuits. When high speed is selected the blower control switch (https://www.yourmechanic.com/services/blower-motor-switch-replacement) bypasses the resistor and operates the blower relay (https://www.yourmechanic.com/services/blower-motor-relay-replacement) sending full battery voltage from the...

If the wiper switch is in the "off" position and yet the fuse protecting the wiper circuit blows when you turn the ignition system on, there may be something wrong with the wiper switch itself in combination with a short...

Leaks from fuel injectors are typically at the o-ring connection on the fuel rail. When you install the injector o-ring, you have to use a liberal amount of engine oil and twist the o-ring in along with the injector. Also,...

Hi there. Assuming that you're not smoking your tires, this type of noise and smell is often associated with a worn out serpentine or drive belt, as the squealing noise is caused by the belt being loose and the smell...

Stalling at idle could be due to a faulty mass airflow sensor, faulty camshaft or crankshaft position sensors, worn spark plugs, wires or defective ignition coil(s), inadequate fuel delivery or pressure (clogged fuel filter, injectors, faulty fuel pump or pump...