Skip the auto shop - Our mechanics make house calls

Q: Possible transmission problem

asked by on

Driving on highway for 45min then rpms go to 7000 and will not accelerate, . Stop for a while and was able to limp home. This happened a few times now. Transmission fluid is NOT low but very black in color. Seems to only happen while on express/highway travel, car ok on local roads after extended drive times. Made appointment with transmission repairman, just trying to get second opinion.

My car has 111121 miles.
My car has an automatic transmission.

Hello. The black transmission fluid is a big issue. The fluid is burning due to excessive heat being generated. You will need to change the filter and the fluid. Keep in mind this is completely different then having the entire transmission flushed. When the transmission has heated up to the point the transmission fluid has burned, the gears that are glued together change molecularly. Then with a flush, the heavy detergents then eat away that new bond and tear it apart. The transmission will potentially be useless at that point. Changing just the fluid in the pan and the filter typically does not effect it as extremely. New coolant will also help keep the transmission running cooler. With the damage that has already been done to the transmission, it may only be a limited time that you can keep it going. Have the filter and fluid changed, and keep an eye on it.

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
  1. Home
  2. Questions
  3. Possible transmission problem

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: I put accidentally in reverse gear while driving foward

Hello. I think you should be okay to drive for now. You may have not initially caused any damage, however, I would recommend keeping an eye on things and paying special attention to the way it drives and to any...

Q: A/C compressor

Check the condition of the drive belt. If the belt looks cracked or worn, it may be slipping and making a squealing noise. Consider hiring one of our mobile experts to come out and offer a personal diagnosis of the...

Q: My Honda Odyssey 2006 has the battery light on while running. I believe there is a slight smell as well.

The battery light is telling you that there is a malfunction in the charging system. The smell might be fluid leak, or if there is an electrical problem you might be smelling burning insulation. When the charging system is not...

Related articles

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...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...