Q: Error code P0139.

I would be hesitant on buying a car with a blown head gasket. There may be more damage internally in the engine because it has allowed water to get in the oil system and can wear out bearings and may...

The rear view mirror provides added visibility out of the rear window. Before driving, you should always adjust your mirror to the ideal position, so that you have maximum visibility. To adjust the mirror, manually tilt it up or down,...

There is likely a wheel speed sensor (https://www.yourmechanic.com/services/wheel-speed-sensor-replacement) issue causing the DSC light to be on. It also sounds like your transmission is in "limp' mode - being stuck in 3rd gear. The problem codes, and professional interpretation, will provide...

You are absolutely correct. If the vehicle even gets raised up off of the ground the front wheels should be shaken down to see if any play exists. This is especially true if the tires were being replaced. There is...

The oil leak may or may not be relevant. But if you are smelling gas in the exhaust, something is probably making that side too rich. It could be a misfire, but you would have misfire codes for that. It...

Hello. Does the noise occur only with the heater (https://www.yourmechanic.com/services/heater-is-not-working-inspection) or does it make the same noise with the A/C on as well? If so, you will want to direct your attention to the blower motor. The bearing can fail...

Your best bet to find repair and owners manuals is the internet. Try searches for 'rx8 repair manuals' etc. Also, search for a Mazda RX8 internet forum. Car forums can be a good source of parts and information. You might...

Hello, thank you for writing in. Walking through the diagnostic process, we can rule out the wheels and suspension as a cause for the humming, as it happens as long as the car is running. The next step is attempting...

Your car probably has several brake warning lights on the dashboard. I'll presume that you are talking about the one that comes on when the parking brake is set. If that light stays on it may mean there is a...