2002 Chevrolet Venture Low oil pressure

Have it towed back to the shop that replaced the intake gaskets and tell them what happened and that you want it fixed as you have paid for. It is something that they didn't do correctly that caused it to do this. If they don't want to fix it with no additional charge call the d. Atternny and take them to court and make them fix it. If you have already gotten it fixed some where else they can still be liable for repairs.