Q: how important is it to replace wire harness when installing new throtle body ?

Hello. The battery is basically a storage device that requires constant charging from the alternator. I would have your alternator tested. If the alternator is not the problem, I would check for a parasitic draw. This happens when something in...

Loss of compression in a cylinder is a sign of physical/mechanical damage such as; a bent intake or exhaust valve, a leaking head gasket. Or possibly a hole in the piston, block, or cylinder head. The combustion chamber could also...

Since the steering column was opened, and you not only have faults showing in the ESP, ABS, and BAS systems with the indicator lights, but you also have the SRS light on as well, I am inclined to believe that...

Hello. It's quite possible that there is no one at fault here. It may just be unfortunate timing. I'm assuming that you have had the codes read (https://www.yourmechanic.com/article/how-to-read-and-understand-check-engine-light-codes-by-jason-unrau) and that is why you have decided you need to replace the...

What you describe sounds like a charging system failure. If the alternator isn't working, the car can run on the battery for a period of time, until the battery voltage gets below a certain point, usually around 10.5 volts. After...

Hello - this new, louder sound level (https://www.yourmechanic.com/question/loud-noise-from-exhaust_24063) could be the muffler, catalytic converter, an exhaust gasket or one of the connecting exhaust pipe(s). I would recommend having an exhaust system inspection (https://www.yourmechanic.com/services/engine-is-running-louder-than-normal-inspection) by a mobile, professional mechanic, such as...

If gasoline was left in the fuel tank for more than 3-6 months, the tank would have to be thoroughly drained. Old gas will NOT start an engine. The fuel filter should be replaced as well. If the car has...

Hello, thanks for writing in. While the cracked radiator and head gasket can be related, you are more concerned with the extend of the damage to the engine. The head gasket and radiator can be replaced, but the interior of...

Hi Giovanni, Thank you for contacting us. We understand that you think it's the CAT. However, form our end we cannot state that with 100% certainty. Is it possible that a clogged up CAT is the source of the high...