Q: What Emissions Tests Are Performed on My Car?

Those are well-built vehicles. It's an all-wheel drive so realize that all-wheel drive systems are very complicated and can cost a fortune to fix. That said, Lexus (https://www.yourmechanic.com/scheduled-maintenance/lexus-is250/) are just fancy Toyotas, and all-wheel drive systems are pretty bulletproof. They...

As far as jack stands (https://www.yourmechanic.com/article/how-to-buy-a-good-quality-jack-stand) go, the pin locks are by far the safest if they have thick pins. Once you get the car up and you have that big thick metal rolling pin secured in there, nothing beats...

Unfortunately, yes, this is normal for "run-flat" tires. In order to be able to run flat, they have very stiff sidewalls to support the vehicle when there is low/no air pressure in the tire. Check out major tire outlets (like...

It sounds like the blend door may be stuck. The blend door is usually controlled by a cable or an actuator. If the switch itself seems to be hard to turn, it is likely cable driven and experiencing a restriction....

If the Mechanic tested the oil pressure sensor and found it to be bad or, in lieu of that, used a pressure gauge to measure the oil pressure at varying RPM's and found the pressure to be with the limits...

Hello - the fuel pressure regulator (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-fuel-pressure-regulator) is located directly behind the thermostat housing (radiator hose attachment end). There is an upgrade kit for this component to raise fuel pressure (Ford#3C3Z-9T517-AG IH #1843065C98). If you need assistance, I would recommend...

Hi there. You can drop the fuel tank from the bottom of the vehicle to get to the fuel pump. It would require removing the fuel neck, fuel vapor lines to the canister, the electrical harnesses, and the fuel tank...

Hi there. Typically we don't offer advice on aftermarket component upgrades. In regards to whether the voltage regulator is located inside the new alternator, that depends on the unit. This one for example (,https://www.dbelectrical.com/products/alternator-high-output-220-amp-5-7l-gmc-truck-89-90-91-92-suburban.html) has it installed inside and does...

Hi Michael. Thanks for contacting us today. A high idle speed while not in gear is often caused by a faulty idle control valve or vacuum leak. It would probably be best to have a mechanic diagnose this issue correctly...