Skip the auto shop - Our mechanics make house calls

Q: No shifting when placed in D drive. Partial functionality by manually shifting.

asked by on

Vehicle sat for last 10 years. Bringing it back to life now. Engine runs perfectly after injection unit. In drive the vehicle takes off but will not shift. It appears to be in 2nd. Manually shift to 3 and no change when moving. Manually shifting to 2 the tranny shift into what appears to be 3rd smoothly. When manually shifting to 1, it truly appears to be a low 1st gear. Reverse work fine. No check engine lights. Is VSS the culprit here? And are there more than one as I see 2 types when looking. Thanks

My car has 99900 miles.
My car has an automatic transmission.

A: If the vehicle has been sitting without mov...

If the vehicle has been sitting without moving for 10 years then just like the injection system the transmission valve body may not be working correctly. The manual selector valve in the transmission is what determines the final gear the transmission will shift to. If you can put the transmission in 1st gear, drive it and at about 20 mph shift it to 2nd gear, then move the shifter to drive at about 30 mph. If that works then it shows the transmission gears work but the automatic shift is the issue. The transmission could have a bad speed sensor, but the most likely cause is the governor for the transmission is stuck. Have a qualified technician, such as one from YourMechanic, thoroughly test the transmission to diagnose your shift issue.

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・Fair and transparent pricing

Get a quote

What others are asking

Q: Driver's side tire not turning

It sounds like you have a broken tie rod. There is an inner, and outer tie rod on both sides. Obviously, you can not drive the vehicle. All of the related parts need to be inspected for damage. This is...

Q: bleeding brakes but no pressure

Hello. This will occur if you allowed the brake fluid to get low enough during the repair and allowed air into the system. Once this occurs the only way to get the air out of the ABS module is by...

Q: 99 GMC Sonoma carbeurated or fuel injected

Hi There, The 1999 GMC Sonoma 4.3L V6 motor is a fuel injected motor that came with what is called a Central Sequential Fuel Injection (CSFI) system. In this application, there is one main fuel injector (called a MAXI injector)...

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 to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
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...