California  |  Product Liability

What guarantee did they give you and why did the engine blow up? Was it was some how your fault or was it something they did. Most reputable places will guarantee their work for a period of time. If they did not give you a guarantee, you are probably out of luck unless they made some false promises about how good the engine was.

Also if they negligently performed some work that caused it to blow up then you can sue them, but if it was because of some defect the motor due to the fact it was used and they made no promises then you are out of luck.

Next time get a guarantee.

Sorry but I hope that helps and good luck to you.