My 2003 Ford F1 50 past the die test but the coolant reservoir still smells like exhaust. Is this a gasket problem I had problem cracked block? My coolant reservoir is also leaking from where the cap Screws on but it's a brand-new cap.

 

Could you fill us in as to the whole story ? Mileage would be helpful also.
The more info you provide, the more accurate some suggestions might be.
Tell the whole story , every bit of info should help.