Hi got engine put in by a garage they av looked at every thing and won't start 3 garages looked still wont go any help plz thanks

 

I'll be equally specific. The answer is that something is wrong.

 

You need 4 things to make an engine run - spark, fuel, air and compression. Your garage(s) should have told you what they did for their diagnostics... Is the engine turning over? is it going at the normal speed or does it seem too slow or too fast? ie is their fuel in the tank? Year/model/engine helps when figuring out what specifically is wrong but there's plenty of testing to begin that is not model specific.