Q: my car is at 100,000 miles i was told not to change my ATF fluid because itwould create more problems

asked by on March 16, 2018

my vehicle is almost at 100,000 miles. I brought it to chevy dealer for ATF fluid change and they advised me not to touch it. they said it could stir up problems. I don't know if the fluid has ever been changed in the past.

Hi Russ. Thanks for contacting us tonight. As a vehicle’s transmission ages, the inner seals and gaskets begin to dry naturally. This is accelerated inside an automatic transmission, which is a hydraulic unit. In some cases, when the transmission fluid is flushed, it can cause those inner seals to break, which then requires replacement. You can simply change the fluid and not flush the system, which is probably the best thing to do at this point.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

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

What others are asking

I rebuilt my 95 chevy 350. It has all new sensors, water pump, radiator, clutch fan assembly, and thermostat. The top hose is cold

First check to see that the cooling system is full of coolant. If the radiator is full, then check your thermostat to see if its installed upside down. If a thermostat is installed upside down, the coolant temperature will not...

My car showtimes take a few times to start. It turns off while I'm driving & sometimes jerks. I was told it's my crank sensor?

Hi there, thanks for writing in. In short, yes, a crank position sensor that is damaged or out of alignment can cause the symptoms you are describing above. The crank positioning sensor monitors the position and rotational speed of the...

Engine rebuild

Generally, a simple rebuild would include things like replacing rings, bearings, gaskets, having a valve job done and potentially replacing pistons and/or boring if needed, however even with doing much of the work on your own, you will likely be...

Smog check failed due to Oxygen sensor

Hello, thank you for writing in. The first person to tell you this was correct to a certain extent. If the system is not warmed up, the readings cannot be taken accurately. However, if the engine is warmed up and...

Master cylinder missing a wire

Hello. The brake light can come on for a number of reasons. If the brake pedal feels fine, then the problem is usually electrical. If the only light that is on is the brake light it is typically caused by...

1998 chevy suburban 2500 4x4 7.4 / 4l80e limp mode?

If the check engine light did come on and the trans went into limp mode, often there will be a fault code stored to shed some light on the problem. The trans fluid level and condition can be checked and...

I have an very bad oil leak.

The crankshaft seal is in the area you are referring to. The crankshaft seal lasts maybe 100,000 miles or so. There are other gaskets and seals in that area that would have to be examined as well. If you request...

Power steering pump pulley

The shaft size and hole size will only be about .003" difference. The shaft if it measures .748" then the pulley hole will be about .745". This way the pulley will press on and be tight. If you need help...

Engine was just replaced in my car but the check engine light is on. Is this something that has to be reset by driving the car?

The Check Engine Light is on if the light was not reset after work was done, or it came on again due to encountering another problem. If you just had the engine replaced, then have the system scanned to see...

Related articles

The Best Used Cars to Buy If You Love Road Trips
If If you love to travel, comfort is very important in a vehicle. You want a nice, quiet ride, comfortable seating, and enough room. We have evaluated several used vehicles, and narrowed our favorite road trip vehicles down to the...
2005 Jeep Wrangler vs. 2005 Chevrolet Blazer: Which One Should I Buy?
Sport SUVs are a class all of their own; these vehicles are meant for a fun drive through the woods and across the trail – but not necessarily to Grandma’s house! Think instead about going through the creek and through...
The Best Used Cars to Buy If You're a Mobile Housekeeper
If If you are a mobile housekeeper, chances are that you are looking for a small, reliable used vehicle that offers good gas mileage and enough space to store your supplies. With that in mind, we present to you the...