2008 ford Escape will not start sometimes

I took my 2008 ford escape to he dealer cause the shifter was not going into gear. It took them a week to get to my car and they replaced the shifter cable bushing. When I picked up the car it started ok. When I got home and started the car it did nothing. I noticed on the web that it could be the starter module. To test they mentioned to push in the key when starting the engine. I replaced the starter module with a OEM part and still the same problem. If I push in the key when starting it will most of the time start. This all started after getting the shifter cable bushing replaced. What would have that replaced caused this starter problem?