Has anyone had to replace the entire engine? on 2004 Ford Thunderbird

engine misfire , rough running condition cold start a rattle noise been in shop for three weeks cost me $2,000.00 for a diagnose still can't find where the noise is coming from.
coil on plug ignition system has been replaced twice will cost me $7,100.00 to replace the engine. This 2004 ford thunderbird has only 39,000 thousand miles on it. Does anyone have a answer, am trying to get ford to help with the bill. What can I do?

Asked by for the 2004 Ford Thunderbird
car way to old for any warranty. you need to go somewhere else for your diag. 2ooo and no answer???? you need a refund due to a bad tech.
at our shop, the motor replacement is around 4ooo with a 3 yr 5oooo mile warranty.
get your car out of there and to somewhere where they know what they are doing.

Roy
Thanks this helped me out alot!!!Tpa
3 answers 1 comment
Only in a bad shop. Have them run computer codes, one or more of your ign coils is defective or you have a broken spark plug. Are you hearing a pulsating noise while the engine is running?
Make sure they check your variable timing, cam phaser out will cause all kinds of other codes and confuse bad Techs