Q: My suburban has a gas leak but only leaks when someone turns the key on, other then that it doesn't leak at all. What could this b

Hello. Smoke coming from the dash can come from a number of places. If the smoke is more like steam and it causing mist in the vehicle then it may be a leaking heater core. If the heater core is...

The cooling fan motors should both come on together. The cooling fan controller will control the speeds of the fans with input from the engine control module. Your fans are controlled by the fan controller on the fan motors (https://www.yourmechanic.com/services/cooling-radiator-fan-motor-replacement)...

Hello. Most of the time, when this code (https://www.yourmechanic.com/article/p0453-obd-ii-trouble-code-evaporative-emission-control-pressure-sensor-high-input-by-jerry-renshaw) comes up, it is either caused by a leak in the EVAP system or a failure of the sensor. Typically, the issue is the sensor itself not reading correctly. I will...

The recommended diagnostic is a non-working wiper inspection (https://www.yourmechanic.com/services/wipers-are-not-working-inspection). The mechanic would determine if power is reaching the wiper motor when the steering column mounted switch is in the "on" position. If there is power to the motor, and yet...

Of course, confirm that the engine immobilizer system (security system) is not activated thus preventing the car from starting. Prior to performing circuit diagnostics be sure you have a fully charged battery that passes a load test (https://www.yourmechanic.com/services/battery-is-dead-inspection). If there...

There are two catalytic converters on the Expedition, one for each "bank" of the engine. Converter 1, corresponding to Bank No. 1 of the engine (passenger side of vehicle) has quite a bit of pipe integral with the converter and...

Hello, As you may know, code 54 relates to the fuel pump relay which means that there is likely a faulty connection or low voltage to the fuel pump relay (https://www.yourmechanic.com/services/fuel-pump-relay-replacement). The ECM monitors the voltage to the fuel pump...

Hi Phoebe. Thanks for contacting us today. When the oxygen sensors have readings that are similar to each other, it is an indication that the catalytic converter is not working as intended. If the voltage of the downstream oxygen sensor...

The OEM lifters from Nissan, which are the recommended lifters, cost roughly $430 for the set of 24. The camshafts have to be removed from the cylinder head to access the valve lifters which makes it a 12 hour job...