Skip the auto shop - Our mechanics make house calls

Q: Transmission slip, car bucking, code P0741

asked by on

While driving on the highway at 60 mph I went to pass a car and the rpm's went up but the car did not accelerate. It happened several more times. I got off the highway and took the streets the car accelerated to about 40 mph as long as I took it easy on the accelerator pedal. When I got over 40 it started bucking very badly. Made it home driving between 20-30 mph. Car has tranny fluid, the color is dark though, didn't smell burnt but I'm not a mechanic so who knows. Does this sound like I need a new tranny? Or something less?

My car has 178000 miles.
My car has an automatic transmission.

A: Hey there. This may be related to a fuel su...

Hey there. This may be related to a fuel supply issue such as a dirty or failing mass air flow sensor. This is a unit in the intake system that reads the air flow into the engine as it is mixed with fuel before entering the motor. This info is relayed to the ECU which then makes a determination to increase or decrease the fuel supply. When this is not working properly, this may cause the car to react the way you have described due to the motor being over or under fueled. I would recommend having a professional from YourMechanic come to your location to diagnose the bucking problem so that this can be repaired correctly.

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

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: Could car jump the curb after being left in park with a faulty transmission

It sounds like you have transmission issues. Police cars are sometimes driven very hard and as a result, the transmissions take a lot of abuse. The transmission has a mechanical device to lock the driveshaft when it's in Park....

Q: Van is not starting

This may potentially be related to a faulty starter relay. The starter relay directs power from the battery to the starter solenoid which then engages the starter when you turn the key. When this is not working properly, you may...

Q: How do I repair srs code b0108?

Hi there. When you get this code it is typically due to a failure of the passenger side air bag. Th air bag fails internally causing this light to come on. It can also be a circuit failure so I...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.