Q: Place in OD and starts in OD instead of 1st. Must manually shift down into 2nd gear then upshift. What would cause this?

asked by on


My car has 70000 miles.
My car has an automatic transmission.

A: It sounds like the transmission is in fail ...

It sounds like the transmission is in fail safe mode. The shifting in your truck is controlled by the computer, (PCM). There are 2 shifting solenoids, a 3-2 downshift solenoid, a line pressure solenoid, and a TCC (torque converter clutch) solenoid. The PCM also uses sensor input from engine sensors like the throttle position sensor, engine speed sensor, and several more.

If there is a problem in any of these circuits, the transmission does not have the information it needs to shift properly, and will default to third gear, while second and first can be manually shifted.

The Check Engine Light should be on and stored any trouble codes. If the light is not on, the computer may not have detected a problem, but one of the shift solenoids is not functioning. The first step would be to check for codes and check the fluid level. If the transmission does not slip in any gear you select, the problem is most likely electrical, but it could be an internal issue as well. If you would like to have your shifting issue diagnosed, consider YourMechanic, as we come to your home or office to inspect and repair your car.

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・Save up to 30%

Get a quote

What others are asking

Q: Oil drian plug cracked tried to extract it but it wnet into oil pan, does the oil pum have protective screen preventing damage?

There is always the possible chance that the piece could get into the opening in the oil pump pickup tube. It will not make it past the screen but can partly block the opening where the oil is sucked into...

Q: Blowing engine 1 fuse every time I start the truck

Hi there. If the fuse continued to blow after these were disconnected then there is either a shorted wire or a computer problem somewhere. I usually also disconnect the computer to isolate that from the circuit. At that point if...

Q: key in accessory position and can' turn off or on can't get key to turn stuck in accessory position

Hi and thanks for contacting YourMechanic. When the key is in the ignition switch, the key should not be able to come out of the switch when it has been turned. When the key is able to come out of...

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 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...
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...