Q: Knocking Sound Run Roughly Dark Transmission Fluid and Dark Engine Oil

asked by on

It's making a knocking sound coming from under the hood? Transmission oil is dark color, so should I get a transmission oil fluid change or flush? It's running rough also. Should I get a Tune up? I haven't had a tune up in a long time. What consists of getting a tune up for it (I.e. replace spark plugs)?

My car has 334456 miles.
My car has an automatic transmission.

I am not sure how many miles your transmission has on it. I would say replace the transmission fluid but if its been more that 150,000-200,000 miles you may have to have a rebuild done on your transmission if you replace the oil. There are particles in your transmission at that point that are keeping your transmission running.

You probably do need to get a tune up including, oil change, oil filter, air filter, replace spark plugs and wires, I always suggest my customers (I do this to my vehicle faithfully also), put 1/2 can of sea foam in your engine before changing the oil. Let the engine run around 10 minutes but not more than 15 minutes. Then drain oil and replace oil filter. Do NOT drive your vehicle while sea foam is in your engine. Sea Foam will help with cleaning out sludge in your engine.

If you would like one of our professional technicians perform a tune up on your vehicle you may book one in your area at the link provided below.

Was this answer helpful?
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. Knocking Sound Run Roughly Dark Transmission Fluid and Dark Engine Oil

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: Replaced right side shock absorber know tire rubs lateral arm 2006 Ford five hundred

To determine the exact fault, as well as why this has occurred, the vehicle will have to be inspected first hand. There are too many possibilities, and too many components to inspect, to speculate without seeing exactly what you have....

Q: How to remove ignition lock cylinder housing

Hi there. There are two resources I can offer you. First, you might want to read this article on how to replace an ignition lock cylinder. Second, although this video is for a 2003 Honda Odyssey, the process is virtually...

Q: 2005 Chrysler Pacifica transmission won't shift gears

The only thing you can really check is the fluid level. Start the engine in park, parking brake on, open the hood, find the transmission dip stick. Pull it, wipe it, re-insert it and see if the level is where...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
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...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...