Q: Opinion about a Lexus GS 350

Hello, thanks for writing in. Having lifters and valves replaced is best left to the professionals. Many times this can involve removing the cylinder head from the engine which will have an affect on the timing. Special procedures need to...

Hello there, oxygen sensor faults are one of the most common on your 2007 Toyota Prius. The oxygen sensors are located in your exhaust system. Your vehicle uses two different types of oxygen sensors: upstream and downstream sensors. Without the...

The most likely cause of your leak is the heater core inside of the car's heater case. The leak will come out of the A/C's drain. If you are going to bypass the heater core then I would recommend connecting...

I recommend you request an electrical diagnostic (https://www.yourmechanic.com/services/electrical-components-are-not-working-inspection) on the blower motor circuit. It has to be determined if 12 volts is being delivered to the blower motor when the blower motor switch is on, in any or all switch...

Hello. The first thing to consider is that amount of work that has already gone into the vehicle. With the lowering of the battery's power so quickly after starting, I have a strong prediction that the alternator/charging system is not...

Hi there. If the car will run with the relay bypassed then the fuel pump is fine. If the relay is fine also then the control for the circuit has a failure. Most of the time this is caused by...

Normally, the cooling system pressure should be around 16 psi so if you have a reading of 13 psi, that would be considered low. If you are positive that you have a leak, I would recommend locating the leak and...

The test you performed doesn't really tell the whole story. The alternator may be charging, but not up to capacity. To be sure you need the equipment to load test the charging system and see if the alternator output is...