Skip the auto shop - Our mechanics make house calls

Q: Leaving stop light car runs high rpms 5000-6000 and doesn't want to go over 20 mph 2009 Chevy Traverse

asked by on

Was leaving a stop light and 2009 Traverse didn't want to accelerate. Ran high rpms and slowly got up to speed. The next day same thing happened when leaving a stop sign. Took a little bit and high rpms but got up to 45mph, after I got to 45 it was fine. A few times when I was stopping, the rpms would go up a little instead of going down. The day after that was at a stop and car didn't want to accelerate and 4000rpm or higher. Eventually hit 6000 rpm at 40 mph and then the rpms stayed the same but car wouldn't go over 20mph. Had it towed to a shop. It's giving them 3 different codes but nothing definitive. Mechanic is suggesting replacing TCM but can't guarantee that is the problem or replacing transmission all together. Neither of these is cheap as you know. Any help and or information would be greatly appreciated. Thanks

My car has 138000 miles.
My car has an automatic transmission.

A: Hi there - first thing to check is the tran...

Hi there - first thing to check is the transmission fluid level - low fluid levels can cause lots of problems like this - your transmission is obviously slipping badly. If the fluid is at a correct level, and doesn’t smell burned, you may well have burned out clutches in the transmission, or solenoid or valve problems in the valve body of the transmission. The problem codes reviewed by your mechanic should have helped guide the diagnosis. I would recommend a 2nd opinion transmission inspection by a mobile, professional mechanic, such as one from YourMechanic, who will come to your location, diagnose this problem, give you an accurate assessment of damage and cost estimate for repairs.

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

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

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: Not happy about transmission failure

Chevrolet determined that the transmission on the 2009 Chevy Traverse that are equipped with the 6T70/75 6-speed automatic transmission (RPO MH2, MH4, MH6, and MY9 have breaks on the clutch wave plates. This causes the transmission to have no reverse,...

Q: shaking

A number of things can cause shaking at certain or all speeds. first off, make sure the tire pressures are set to the correct settings for the vehicle. Pressures listed on the tire sidewalls are the Maximum recommended for the...

Q: Brake rotor and pads choice

Hi there. When it comes to buying brake pads, to be completely honest, almost every aftermarket part made today will be fine for your application. In regards to personal preference, I'm a fan of OEM brake pads and rotors -...

Related articles

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...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.
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.