I have a 2019 Chrysler Pacifica minivan. It is an automatic V6 touring L. It has a blown head gasket affecting cylinder six. It has also had a very slight tick for a little while now. Not sure exactly how long. Some days the tick is worse and other days it is almost unnoticeable. Recently, I changed all of the spark plugs. I was also getting a misfire code which turned out to be the blown head gasket. Along with the misfire code there was a cam position sensor code. I ended up replacing both cam position sensors.
now I am getting three codes and the car is running very poorly. The check engine light is flashing while driving.
P0300
P000a
p105D
I ended up using a bottle of K-seal Ultimate head gasket sealant. It seems to have worked, and it is no longer losing antifreeze.
my question is, should I pull the valve covers and look for damaged lifters, and damage to the cam lobes. Or is there something else I am missing?
K-seal Ultimate head gasket sealant. It seems to have worked
It's a temporary band-aid at best. Hopefully the stuff will not clog up your cooling system. If you were planning to keep the vehicle any length of time a proper repair should have been done.
Given the head gasket problem I would do a compression test to verify internal engine condition.
@chucktobias thank you for that. I had not thought of doing a compression test.
Also, as you said, the sealant was a temporary fix. I’m honestly trying to get it through until next year when I will have a better financial situation to get something different.
I’m also monitoring the vehicle very closely for signs of a clogged cooling system. Do you think that I should drain the coolant now that the treatment is complete? And should I also change the oil in case some of the sealant has made its way into the oil?
I would check compression before taking any other action at this point. If it's good at least you know that's not part of the problems you're having. If bad then nothing much is going to get the thing running right. As far as draining the cooling system I would follow the directions for the product that you used.