is there a way to check if the block is bad on a vehicle?

Start the engine, let it warm up, have the heater on high. Feel both heater core hoses. Both should get hot. If they do, check the blend air door. If they don't, try flushing the heater core.

To check for cracked blocks or heads, you need to have a pressure bleed down check.

they did some kind of pressure check already

That should have answered the question.

it didn't they just said it was a possibility to take to an engine shop i dont know where to take where they wont take advantage of woman

I wish I was there to recommend. You should take it to a dealer, but act very knowledgeable when you take it. Tell them you were told the vehicle may have a cracked block or head and you would like them to check it. Then, get back to me with any comments they have and I will guide you. You're not alone, I'm here to try my best to help.