Q: Car revs a little when driving in 4th gear

asked by on May 30, 2017

Car shifts perfect from 1st to 2nd to 3rd and to 4th. However, when driving in 4th i get an occasional rev and see my rpms go up and come back down. It doesnt do this constantly and it doesnt really affect the driving it just worries me is all. Please help i changed the transmission fluid already and cleaned the throttle body as i was suggested to do so.

My car has 135000 miles.
My car has an automatic transmission.

Transmission Fluid Service $125.08 - $496.65 Get a Quote

What you are describing is often a sign of low transmission fluid or a faulty transmission control solenoid. As you know, automatic transmissions use pressurized hydraulic fluid to change gears. Every time a gear change is required, the car’s computer activates a transmission solenoid, which directs transmission fluid into the valve body to engage the correct gear. When this is faulty or not working properly, this can cause a delay in gear shifting or in some cases cause the car to not shift at all. This type of problem is amplified any time the transmission is low on fluid creating a drop in hydraulic pressure. I would recommend having a professional from YourMechanic come to your location to diagnose and inspect your vehicle.

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


Experienced Mechanic?

Earn up to $65/hr

What others are asking

I have a,2004 Cadillac CTS,. there is a whining noise coming from the rear tire passenger side- what could it be ?

Hello, thank you for writing in. When it comes to potential brake issues, you want to have it looked at as soon as possible. The brake system is THE most important safety feature on the vehicle. If you have leaking...

Why after changing the power steering pressure sensor I still get the check engine light stating sensor failure?

When you scanned the computer and got a code for the power steering pressure switch, it did not necessarily mean to simply replace the sensor to fix the code. The code you got directs you to a pinpoint test that...

At 70 mph, braking in rain, car pulls hard to the right

Hey there, thanks for writing in about your 2004 Jaguar XJ8. If you have any kind or even a little brake pulsation in the brakes when you stop, this may cause a wheel to momentary stop in wet weather when...

Runs rough & Engine light

The codes being set should be investigated first unless they implicate systems or components that clearly are irrelevant as "causes" of a rough running condition in which case you would diagnose and fix the rough running condition first and then...

timing control valve

First, there are many different reasons you might get a timing over advanced code. The problem could be anything from a stretched timing chain to a failed actuator. The timing control solenoid valve is turned on and off by the...

Growling noise from car. Could be the AC compressor, alternator, or power steering.

All of the possible causes mentioned could be the issue. All of these parts have pulleys that are ran off of the serpentine belt. Most of the pulleys have bearings inside them that allow them to spin freely. If a...

On take off my car jerks to a stop then accelerates as if it's on its own.

Hello. From what you describe it would appear that your vehicle may be experiencing more than one issue. Squeaking noises at cold starts are usually caused by a worn belt or belt tensioner. It may be possible that either of...

Make loud growling noise for couple days. Then died on highway yesterday. Wont start back up

In my opinion your water pump was making the noise. This is one of many possible scenarios. 160K is roughly the amount of miles that a factory water pump will fail. It is driven by the timing belt. When it...

Electrical turning off.

The symptoms you describe are most commonly caused by the ignition switch loosing contact to one or more contacts in the switch. I would try and wiggle the ignition key to see if the problem comes and goes. This would...

Related articles

A Buyer's Guide to the 2012 Mazda CX-7
If If you want an SUV, but don’t care as much about the “utility” part as you do the “sport” features, you should take a look at what the 2012 Mazda CX-7 has to offer. Key Features With a turbo...
A Buyer’s Guide to the 2012 Mazda 3
The The compact car class is definitely a competitive one, with established models like the Toyota Corolla and Honda Civic taking up a lot of the market every year. However, if you’re looking for a really attractive compact sedan or...
The Best Used Cars to Buy If You Live in a Windy Area
If If you live in a windy area, one of the most important things you’re going to be looking for in a used vehicle is the ability to remain stable on the road on even the most blustery days. That...