Q: I have a 2007 Buick Lucerne and the temperature gauge is bouncing up n down ...what does that mean?

The most common problem is the cooling fan switch located on the pipe that connects the upper radiator hose to the radiator in the engine compartment. Another issue is that there may not be sufficient coolant in the radiator. I...

Hi. I used to help design the software used to talk to Volvo onboard electronics. In fact, I helped write the throttle module relearn procedure. There is updated software for the module that may help with your problems. A reflash...

Low fuel pressure caused by a dirty filter may offer enough fuel for a start but not enough volume to support idle. Have an experienced automotive technician, such as one from YourMechanic, diagnose why your car is starting and stalling...

If you have a lack of power, it is not a good idea to put highway mileage (high RPMs) on your vehicle. It can clog your fuel injectors and damage your engine. There are two types of catalytic converter damage....

Hey there. You should have a stamp on the alternator (https://www.yourmechanic.com/article/how-to-buy-a-good-quality-alternator) with a part number and amperage. The part number that starts with F3UZ is the 130 amp, and the F1TZ is the 95 amp. You can use either one....

Hello and thank you for writing in. With the multi symptoms that you are experiencing with your vehicle, there are a couple things that are wrong. The first thing is the ignition switch probably failing. All of your power devices...

Hello - no, most likely this is the oil pressure relief valve sticking in the "open" position when the pressure comes up. It may then release after sitting a bit, or when you next hit the starter. The early 4.8/5.3...

Hi there. Check the contacts to the engine oil temperature sensor. See if the contacts are loose and if they are falling off. Also, check the wiring to the sensor and see if its over a spark plug wire. Its...

Hi there. It really depends on the location of the motor (meaning if it's installed in the vehicle or loose and on an engine stand), that would factor into the price and whether this is a project one of our...