Updated March 14, 2025
Is my transmission going bad? You might wonder this if you experience a concerning symptom, like a grinding or crunching noise or trouble switching gears.
On today’s vehicles, it may be difficult to determine if you’re having an engine running problem or a transmission problem.
Since vehicles have a lot of computer control in them, an engine running problem can mask itself as a transmission problem, and vice versa.
We go over some examples below.
Transmission problem indicators
Transmission replacement
One way to tell if you’re having a misfire problem over a transmission shaking problem is to take a look at the check engine light.
A flashing check engine light most likely means that it’s an engine misfire. If the symbol is steady and you’re still having that issue, then it could be transmission-related.
You may also experience delayed engagement when you’re stopped and then you press the gas pedal. This can hint at a clutch problem, a solenoid problem, or even low fluid.
Another sign is that the drive indicator on the dashboard may start to flash. It could be signaling that there’s an electrical or mechanical issue or that it’s going into limp mode.
If you have to press the gas pedal much further than normal to get moving, there could be a transmission problem, but you should have an auto repair shop take a look. Catalytic converters can get clogged up and give you the same symptom.
Very dark and burnt smelling transmission fluid are a couple of other indicators you should keep an eye out for. In this case, your car may need a transmission fluid exchange.
Transmission leak on a Honda Pilot
Transmission leaks are possible, as well. This may be the case if you see transmission fluid – which can be black, red, gold or pink – in or around your parking spot. However, it may not be discovered until an automotive expert is inspecting the vehicle. Leaks can occur in many places, including solenoids, the pan gasket and electrical connectors.
Transmission service
Transmission fluid exchange on a Toyota RAV4
One of the things you can do to help a transmission last is to have regular transmission fluid flushes performed.
This will not only put new fluid through the whole transmission, it can help get the clutch material and contaminants out of it.
Some cars have a transmission filter that needs to be replaced. We recommend new fluid and filters every 30,000 miles, but it can vary for each manufacturer. For some cars, you can’t change the transmission filter because it’s internal.
Having technicians look over your vehicle when you bring it in for maintenance is also a good practice. That way, you get eyes on your car on a regular basis and make sure there aren’t any transmission leaks or signs of a transmission problem.
Steve’s Auto Repair & Tire is an authorized Goodyear tire dealer located in Woodbridge, Virginia. Automotive repair services are performed on all makes and models, including BMW and Mercedes. Services include oil changes, brakes, alignments, inspections, and computer engine diagnostics.