Q: won't shift to any gears

From the description provided it appears that you have quite the list of concerns going on with your Dodge Neon. With a situation with so many concerns, I highly recommend enlisting the assistance of a certified mechanic to come by...

Hello. Thanks for writing in about your 1995 Buick Riviera. If restarting the engine allows you to get the car running properly again, then chances are that the valve body in the transmission is failing. Over time the body can...

You may have a bad connection in the connectors to the body control module, instrument cluster, and ECM. Try to disconnect the battery and disconnect these modules. Afterwards, apply dielectric lube to the connectors and reconnect the battery and see...

Hi there: Although it's possible that the whining noise might be caused by the overdrive, it's also possible that this noise is caused by bad or failing wheel bearings (https://www.yourmechanic.com/article/symptoms-of-bad-or-failing-wheel-bearings). As the wheel bearings begin to age, they will lose...

This may mean many different things ranging from just a basic service interval notification to other more severe transmission component failures. Generally, if there is something seriously wrong, you may get a more severe warning indicating to shut the engine...

The code P0305 is indication that cylinder number 5 is not firing all the time. When you see the check engine light flashing then the cylinder is actively misfiring. You should have the spark plug and coil checked for problems...

If the sound is a bit of a clunking or clicking sound when accelerating hard, this may be related to bad CV joints. What you are describing sounds like a failing CV joint (https://www.yourmechanic.com/services/axle-cv-shaft-assembly-replacement). A CV (Constant Velocity) joint is...

The two motors are from two different years and one is a car and other a truck motor. The two motors have different specifications for compression and camshafts internally. You will also have different external problems with sensors, fuel injection...

If you bought an aftermarket key FOB then there is no guarantee they will match the manufacturer key FOB. The FOB should be the same for 2003 to 2007 Accords and have not changed. They will need to be programmed...