I went and bought a block test kit to test to see if my head gasket is really bad and this is what i got.The fluid changed from blue to a yellowish green so it has to be letting in gases and i must have a bad head gasket but theres no smoke out the tail pipe at all but it did smoke 2 times at start up a month ago hasnt done it sincemy check engine light keeps going on to with code po441 even though i have a new evap pump this code keeps coming back with the check engine light.would the check engine light keep coming on with a bad head gasket?this is the 3rd time the code has been cleared off and it keep coming back on 2 days later.here is a pic of my block test for those of you who know how to do a block test what do you think? (i had to drian the over flow halfway to not get coolant into the tester.i over filled the test kit a little but i asked at a shop and they said that it doesnt matter) a guy at a shop down the road from me put some stop leak head gasket stuff it and now the over flow bottle take 2 weeks to empty out before it was every week.that stop leak head gasket stuffs a joke if you ask me.

block test pic

https://dodgeforum.com/forum/members...0936-44745.jpg

 

I do know that if you have added Fresh coolant recently, the test will come back as false-positive essentially rendering the test useless.

But, I would bet you have a headgasket problem. After all, you own a 4.7L ;-)

 

I never was told that but im pretty sure the head gaskets bad I just cant figure out why the fluid didn't turn all yellow its like greenish yellow maybe more yellow means a bigger leak?anyway yeah the 4.7 isnt to good with head gaskets my next ram will be a 5.7 what problems do those have lol?

 

I've had the Hemi tick since 400miles. It's so bad now(15kmi) it's what I call a severe knock.

 

thats to bad think i may go look at a 03 hemi this weekend if the guy still has it.my truck just has to many issues head gasket,heater core,etc seems like everything broke all at once.