Q: My car won't shift out of 1st gear. I replaced the engine with one from a Saturn, now it won't shift up.

asked by on

I replaced the engine from my 2004 cavalier with one from a saturn. The transmission worked fine before we switched engines. Now it will shift F, N, R, P but it won't shift up from 1st gear. I didn't know whether I would need to get the computer reprogrammed since it was a different engine or if there is another fix.

My car has 215000 miles.
My car has an automatic transmission.

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

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!
  1. Home
  2. Questions
  3. My car won't shift out of 1st gear. I replaced the engine with one from a Saturn, now it won't shift up.

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: Help

It sounds like you are loosing either spark or fuel pressure. Try and see when it stalls to see if you have fuel pressure and spark. If you are loosing spark then you most likely have a bad ignition module...

Q: abs light on brake line broke have been replace I bleed brake line but brake pad still go to the floor now wheels lock up

Hello. If the brake pedal is going to the floor then that means that it is not building pressure. If the brake system has been fully bled and there is no air in it then most of the time it...

Q: Water leaking in mid-section of car

Hi, thanks for writing in. Typically when coolant is leaking in the center of vehicle, it comes from the water pump or the primary coolant line attached from the pump to the block. In order to verify this you can...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
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...