1998 Chevrolet S10 Q&A

1998 Chevrolet S10 Question: What would cause oil to get in the coolant of a 4.3 vortec?

the most oil appears to be on the right side bank. -
Answer 1
OIL IN COOLANT. Defective oil cooler, it's part of the radiator! Any coolant in oil? -
Comment 1
Does not appear to have coolant in the oil -
Comment 2
Oil and trans. coolers can be tested to confirm. Get your mechanic to check it for you. -
Comment 3
Thanks. I installed a new radiator before I noticed the oil in the coolant. I will get radiator checked. Is there anything else that could be the cause? -
Answer 2
maybe from old rad. flush system and see if it comes back. could also be leaking intake gasket -
Comment 1
Thanks for info -