Skip the auto shop - Our mechanics make house calls

Q: My car won't start after replacing transmission

asked by on

I changed transmission now my car won't start. It turns over but won't start. I changed spark plugs, checked sensors... What should I do?

My car has 238107 miles.
My car has an automatic transmission.

It will be hard to tell if a Check Engine Light code has popped up since the car won’t run, but you can still hook up a code reader to see if there are any faults. Any codes present may lead you to the problem. It could be a sensor (camshaft, crankshaft, oxygen, or mass air flow), a pinched wire, a broken fuse, or just a bad ground to give you a few possibilities. Consider returning to the facility that replaced your transmission; or if you did the work on your own, have a certified technician, like one from YourMechanic, come to your car’s location to diagnose the starting issue and pinpoint the needed repairs.

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: I hear a loud clicking noise on the drivers side by my tire rim when turning the steering wheel front tires vibrating as well.

A clicking noise on turning is very characteristic of a failed outboard CV axle joint. Sometimes, in such a circumstance, you can see that the rubber outboard boot is actually torn and leaking grease. If you see that (look behind...

Q: crankshaft pulley turns, water pump belt doesn't. It's making a squealing noise.

Hi there. In this case, it's likely that one of the pulley's is frozen or the bearings inside the water pump are damaged which is the source of your problem. It's typically a good idea to replace the water pump,...

Q: Wheel locked up

Hi. The parking brake system on the Maxima uses 3 cables. One control cable from the handle, and one cable going to each rear wheel brake caliper. A visible inspection of both calipers needs to be administered with both the...

Related articles

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...
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...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.