the most oil appears to be on the right side bank.
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1998 Chevrolet S10 Question: What would cause oil to get in the coolant of a 4.3 vortec?
Answer #1pushrod April 15, 2013, 22:34Master
OIL IN COOLANT. Defective oil cooler, it's part of the radiator! Any coolant in oil?
Replytonybirk, April 15, 2013, 22:45Rookie
Does not appear to have coolant in the oil
Replypushrod, April 15, 2013, 22:58Master
Oil and trans. coolers can be tested to confirm. Get your mechanic to check it for you.
Replytonybirk, April 16, 2013, 08:45Rookie
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?
maybe from old rad. flush system and see if it comes back. could also be leaking intake gasket
Replytonybirk, April 18, 2013, 08:05Rookie
Thanks for info