Skip the auto shop - Our mechanics make house calls

Q: Transmission problem?

asked by on

I have an 08 Mazda 6 and when my car shifts from 3rd to 4th, there is a jolt. I'm wondering how bad of a transmission problem it is and if I have to get it fixed ASAP?

A: Hello, thanks for writing in. I will be gla...

Hello, thanks for writing in. I will be glad to assist you with your question about your Mazda 6 transmission.

There is some anecdotal evidence, albeit limited in amount, that the shift issue you are experiencing is not an unusual or unknown issue with this transmission. Apart from consumer reports on the Internet, a consumer filed this Complaint with the National Highway Traffic Safety Administration in 2013. I think you will find the consumer's account informative. There are a variety of potential technical causes for your problem involving not only the issue identified in the below NHTSA report but also possible faults with shift solenoids, valve body components, the clutch pack(s), and the programming of the PCM/TCM.

Just to be sure you are not overlooking simple, accessible measures, do make absolutely sure the fluid level in the transmission is correct. If not correct, that could cause a problem with shifting. If you have over 100,000 miles on the vehicle, there is a possibility that changing the transmission fluid and filter might help but I wouldn't get your hopes up too high (it is harmless maintenance and should be done anyway). Shift shock, as this issue is often termed, is not incredibly helpful to the vehicle drivetrain but it would have to be really severe to cause damage. It will not damage the engine for sure and even if it damages the transmission, if this issue is not resolvable via any ordinary diagnostics, you'll end up having to change the transmission anyway.

To get further insight, I would strongly recommend taking the below NHTSA report to the service center at a Mazda dealer(s) and ask the mechanics to identify the technical issue and try to fill you in. I have done this before and they can be informative. In other words, just make an inquiry. If they can just simply honestly and collegially tell you what the technical issue is (again, it is apparently a known issue) at least you will then have a way of determining if a component can be replaced or if the whole transmission will have to be replaced. If you elect to install a rebuild, be sure you buy a rebuild from an OEM Mazda dealer, as Mazda is likely to have already addressed the issue in their rebuild program given their first hand technical knowledge of the transmission. You (or YourMechanic) can always buy from a dealer and have YourMechanic do the installation to keep the cost reasonable. Let us know how we can assist further. Hope this helps and best of luck!

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: Car continually clicks, but doesn't start.

The battery is most likely too week and the jumping gauges are normal for this problem. I would recommend having a mechanic, like the certified ones at YourMechanic, come and check it out the battery and charging system for you...

Q: Engine seizes - 2008 Chevrolet Suburban 2500

Hi and thanks for contacting YourMechanic. If the mechanic said that there is no compression in the engine, then there could be 2 things wrong. Either the engine has all of the valves or rings burned or broken, or the...

Q: Transmission slipping

Hello. This is a serious issue that requires immediate attention by a transmission specialist. This is an internal problem with possible issues with worn bands, valve body, or other components which could cause other parts to fail, due to too...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.