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MX-6

Hello. If your issues began after you removed the turbo lines then the first thing I would do is go back and make sure that all of the hoses and lines were reinstalled correctly. Any sort of boost or vacuum...

The EGR valve is designed to allow the flow of exhaust gases into the intake manifold in controlled amounts. When you start the engine, the valve comes alive and waits in a closed position, blocking the flow of exhaust gases....

Hi there. White smoke is sometimes an indication of coolant finding it's way into the oil inside the motor. This can be caused by a blown head gasket or shortly after experiencing an overheating issue. It can also be caused...

Hello, thank you for writing in. Hesitation and knocking can come from several different components. The work you have done so far is perfect and allows us to focus on other systems. When it comes to hesitation the oxygen sensors...

The airbag light code 34 means that there could be a poorly mated connector on the airbag sliding contact that may not push the shorting bars back into their fully retracted positions. There also could be a short across the...

Hello. There are several possibilities for the engine knock. It could be caused by a busted piston, broken valve, or something internal in the engine. The smoke may be due to an internal damage on the engine block and/or oil...

Hi there, thanks for writing in about your 1993 Mazda MX-6. It sounds like a mis-adjusted shifter linkage or a worn shift fork for 5th gear. Either or both of these could cause the 5th gear to not stay engaged...

White smoke generally indicates that you may have an internal engine problem, such as a head gasket leaking coolant into a cylinder. If white smoke is blowing out from the exhaust during first 3 minutes of a cold start up,...

Be sure the fuel is not old. Old gas will not start or run an engine. Initially, check the throttle position sensor. If that checks out, carefully check engine compression in each cylinder. If there is no, or inadequate, compression...

Hi - most likely the reverse light switch (https://www.yourmechanic.com/article/how-long-does-a-backup-light-switch-last) is working erratically. It is mounted on the gearbox, and is subject to vibration as well as oil on the switch contacts. I recommend a reverse light switch replacement (https://www.yourmechanic.com/services/backup-light-switch-replacement) by...

This may indicate a faulty fuel pressure regulator (https://www.yourmechanic.com/services/fuel-pressure-regulator-replacement) or dirty fuel injectors causing a fluctuation in the fuel supplied to the motor and thereby causing the RPM's to fluctuate. As you know, when you turn the key to on,...

There are a number of issues at play here. The transmission definitely needs to be looked at if it is slipping in any gear (https://www.yourmechanic.com/services/gears-slipping-when-accelerating-inspection) or when locking up as you describe. The knocking sound may also be a possibility...

There are two possible scenarios to check out. First, if the cooling system was not bled properly to get all the air out, then the cooling gauge can fluctuate, as the sensor can't measure the temperature of air/steam in the...

Hi there, thanks for writing in about your 1993 Mazda MX-6. It sounds like the idle air control (IAC) motor is gunked up and either needs to be cleaned or replaced. Turning on the AC causes the IAC to change...