Q: Transmission is skipping 3rd gear

asked by on

What would make the transmission skip 3rd gear

My car has 189000 miles.
My car has an automatic transmission.

Hi there. Is the check engine light on? Are there any stored codes that may lead us to a specific system? Does the transmission have the correct amount of fluid? Aside from the electrical and any codes stored, there could be a couple of other causes: a sticking detent cable or a sticking valve in the transmission valve body. The detent cable is what connects the throttle body to the transmission and aids in transmission shifting based on throttle position; vehicle speed and other electronic factors contribute as well. If the cable is sticking, it could be affecting the transmission shifting. The cable can be lubricated to a point as removing the cable from the transmission usually involves removing the pan and valve body to gain access. Open the throttle, then clean and lubricate the exposed cable. Move the throttle to fully open several times to work the lubricant into the cable sleeve. Test drive the truck and see if there is a change. If there is no change, the cable may not be repairable or there is a more involved underlying issue. I strongly suggest having a qualified technician perform an inspection to avoid replacing unnecessary parts. Your Mechanic has several available technicians that can assist you with a transmission does not shift properly inspection.

Was this answer helpful?

Hello - a "skipping a gear condition" like this is most commonly a failure of the 3-4 gear clutch pack (for the 4L60E transmission). It is also possible that one of the valve passages in the transmission is damaged, preventing proper solenoid/valve operation to engage the clutch pack. I would recommend having a transmission diagnosis to confirm the failure point. 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 1,000 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
  1. Home
  2. Questions
  3. Transmission is skipping 3rd gear

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: Code reader indicates bcm not communicating

Hello. The message you are receiving is displayed when the scan tool is unable to communicate with the vehicle's body control module. Depending on the model of scan tool this could mean that it is unable to communicate with the...

Q: No click no crank no start

It sounds like you ran your battery down. You should first jump start the battery to see if the vehicle will crank up. If you get it started again then get the dead battery recharged and then have it load...

Q: Alignment off on 2004 GMC Envoy

Hello. Sometimes hitting a curb or running over a pothole can cause the alignment to go out in a car. Also, if you have a worn suspension it will cause the alignment to go out as well. If this is...

Related articles

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...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...