Q: What type of gas do I use

If I were to take a guess, without any other information, I would say that fuel pressure is dropping off to zero when the car is parked. The fuel pump has a check valve to maintain some pressure for quick...

I believer the cause of your noise is your power steering pump or belt. If your pump is making a loud whining noise then you may have a power steering leak (https://www.yourmechanic.com/services/power-steering-fluid-is-leaking-inspection) and the pump is starving for fluid. Check...

Hi, thanks for writing in. This is a sign of a failing idle air control valve (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-idle-control-valve). This is a unit that regulates the air flow into the engine as it is mixed with fuel prior to being injected into...

Hi there. This may be a sign of a faulty transmission control solenoid (https://www.yourmechanic.com/services/downshift-solenoid-replacement). Modern automatic transmissions use pressurized hydraulic fluid to change gears. Every time a gear change is required, the car's computer activates a transmission solenoid, which directs...

Hi there. It does seem kind of suspicious that your vehicle went in with ac and now it doesn't work. I completely understand how you feel and hope to help you fix this. However, component failure can happen at any...

Hi There, This can be caused by a loose battery cable which is often times the problem. Try checking to be sure they are connected properly. Also, there is a sensor that has 3 small wires running to it that...

Hi Sade. Thanks for contacting us today. To my knowledge, the 2010 Buick LaCrosse is a dual-system catalytic converter set-up. In most cases, when one wears out, the other one is quick to follow.

EPS systems will communicate with a professional scan tool. Inasmuch as all of the "faults" you refer to are possible, the fastest way to resolve this is to simply download the trouble codes that have set and/or use a real...

What you are describing is often a sign of low transmission fluid (https://www.yourmechanic.com/services/transmission-fluid-service) or a faulty transmission control solenoid. As you know, automatic transmissions use pressurized hydraulic fluid to change gears. Every time a gear change is required, the car's...