Skip the auto shop - Our mechanics make house calls

Q: First gear in my transmission has a bad problem

asked by on

The transmission in my 2007 Jeep Wrangler works fine except for its tendency to pop out of first gear. It is the strangest thing, there is no problem getting into or out of the gear. This vehicle has like 70,000 miles on it (a little under) and the other gears work fine. Is this something I should worry about?

A: The manual transmission on your Jeep Wrangl...

The manual transmission on your Jeep Wrangler has one of two problems.

The shift boot may be getting in the way of the shifter, blocking it from going all the way into first. This could cause it to pop back out of gear.

If the boot is not the issue, the 1-2 synchronizer probably needs to be replaced. Jeep released a Technical Service Bulletin (TSB) 21-001-10 dated 4/20/2010 that covers the details for checking the boot and replacing the synchronizer. The transmission would need to come out and be disassembled to replace the synchronizer.

A certified mechanic, such as one from YourMechanic, can inspect your transmission and find out what is causing your shifter to pop out of gear.

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: Input shaft swap between automatic and manual transmission possible?

Hello there, the input shaft is different between the automatic and manual transmissions of your 1993 Chevrolet Blazer. The part numbers are different between the two parts, this indicates the input shaft is not able to be swapped between the...

Q: Problem starting

What you are describing sounds like a faulty starter solenoid. A faulty starter solenoid will generally produce a clicking sound when turning the key. The starter solenoid is located on the starter and has internal electrical contacts that transmit electricity...

Q: My car Roaring when I accelerate

Hello. Thanks for writing in. To begin, we need to identify what kind of noises you are hearing. Does it sound like a squeak, ticking, grinding, or tapping? Vehicles will make different noises when the engine is cold. Sometimes these...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...