ctafoya Report post Posted January 7, 2022 Figures. I just did new upper control arms, ball joints, tie rids, CV's, wheel bearings, and Threw out a PO4030 code a few weeks ago but no drivability issues. Jump forward to today and it's running very rich. More condensation then you'd expect to see from the exhaust. Leves a puddle. Coolant is down and engine oil is up. New oil and filter 200 miles ago. Runs smooth until in gear then acts like its going to stall. Cooling system does not build pressure. I think I know the answer, but throwing a hail Mary anyway. 1996 k1500 350 vortec. 1 Share this post Link to post Share on other sites
Newbie2012 Report post Posted January 7, 2022 Blown head gasket. https://www.amazon.com/Block-Tester-BT-500-Combustion-Leak/dp/B06VVBSFTF/ref=sr_1_2?dchild=1&keywords=exhaust+in+coolant&qid=1614808316&s=automotive&sr=1-2 Share this post Link to post Share on other sites
Curtis Reed Report post Posted January 7, 2022 Yeah probably head gasket or cracked head. When your truck is gobbling up antifreeze and oil that can ruin your cat converter which is why you have that code. Drain your oil and see if there is coolant in it. It will look like chocolate milk if there is. There probably is since your coolant level is down and oil went up. Share this post Link to post Share on other sites
ctafoya Report post Posted January 7, 2022 Yeah thats what I figured. Vortex long blocks aren't as cheap as they used to be. It's always something. Share this post Link to post Share on other sites
L Cazador Report post Posted January 7, 2022 Yup blown head gasket or warped head! Did you get her hot? Share this post Link to post Share on other sites
L Cazador Report post Posted January 7, 2022 2 minutes ago, ctafoya said: Yeah thats what I figured. Vortex long blocks aren't as cheap as they used to be. It's always something. You don't need a long block, just two heads and gaskets! Maybe just two head gaskets and get the heads milled down, if you're lucky. Share this post Link to post Share on other sites
ctafoya Report post Posted January 7, 2022 1 hour ago, L Cazador said: You don't need a long block, just two heads and gaskets! Maybe just two head gaskets and get the heads milled down, if you're lucky. Possible. Never got hot. I would just hate to go through all that just to need to do a rebuild anyway. Share this post Link to post Share on other sites
PRDATR Report post Posted January 7, 2022 Without a tear down it could be a number of things including bad intake manifold gasket. 1 Share this post Link to post Share on other sites
L Cazador Report post Posted January 7, 2022 When you take the heads off you will need to remove intake and exhaust manifolds so gaskets for those is part of a head replacement or milling job. A good shop can help decide which way to go. About the only other way water is going to get into oil is through a cracked block. Share this post Link to post Share on other sites
Crazymonkey Report post Posted January 7, 2022 My 4runner did the same thing and it was a bad head bolt .caused the gasket to leak just a little and it would start and run like crap for a minute then be running like a champ . Share this post Link to post Share on other sites
Crazymonkey Report post Posted January 7, 2022 The biggest clue is to check the oil .if it looks like chocolate milk .mine was just the coolant color on the tip of the spark plug the white was pink from leaking Share this post Link to post Share on other sites
HorseHunter Report post Posted January 7, 2022 Speaking of hail Marys...... If you are so inclined, you could give this a shot. Share this post Link to post Share on other sites
ctafoya Report post Posted January 8, 2022 Might be time for an LS conversion....... 1 Share this post Link to post Share on other sites
HyNoon Report post Posted January 10, 2022 On 1/7/2022 at 8:06 PM, ctafoya said: Might be time for an LS conversion....... I thought about that route but then I just put heads in mine and left the bottom end alone for now. Share this post Link to post Share on other sites
ctafoya Report post Posted January 11, 2022 On 1/10/2022 at 3:08 AM, HyNoon said: I thought about that route but then I just put heads in mine and left the bottom end alone for now. Yeah I'm probably just gonna do the same. Picked up a new toy over the weekend I'll do something fun with. Share this post Link to post Share on other sites
