- Thread starter
- #101
Well yea its not over filling cause its dumping it out the rear main seal. ANd where can i get these test strips
Terrible news
- Thread starter jrmudder92
- Start date
This site may earn a commission from merchant affiliate
links, including eBay, Amazon, Skimlinks, and others.
- Status
Well yea its not over filling cause its dumping it out the rear main seal. ANd where can i get these test strips
- Thread starter
- #102
Rear heat has been deleted. I don't smell coolant in the cab tho.
- Thread starter
- #103
Found this forum it looks like a crack....
https://forum.ih8mud.com/threads/mysterious-coolant-loss-cracked-head-in-3fe.468855/#post-6472580
https://forum.ih8mud.com/threads/mysterious-coolant-loss-cracked-head-in-3fe.468855/#post-6472580
Why don't you pull your valve cover and see if it looks like the ones pictured and look real close at the head for possible cracks? Seeing any of the steam and water drippage like the truck on the thread? Heads do crack fo sho.
No dude, you're missing the point. If the crankcase was overfilling with water, then the oil would look milky. It does not. The fact that the rear main seal leaks does not appear related to your coolant loss problem.
Still waiting on input on the questions about the leakdown test. Still waiting on input about the oil analysis.
You do not have any frothiness inside your valve cover. We looked inside at the meeting, and there's nothing in your oil fill cap. Why do you keep jumping to conclusions? Yes it's possible that you have a cracked head, but they should have magnafluxed it before putting it on the motor, eliminating that possibility (at least when it was built).
One last try.
Provided the leak down test was done PROPERLY, a 7 psi drop is less than 5%. If those drops were consistant for all cylinders they represent very good numbers.
As has already been asked, it appears no one at Toyota paid any attention to where the leak down air was coming out. Breather tube, intake, exhaust OR radiator .... that's important stuff to know. Unrelated to what is wrong with your truck, I would not go back to that dealer.
Let's get right to it .... that much coolant is NOT going into your oil. That leaves 3 places for it to go:
1. Transmission via tranny cooler. Toyota says tranny fluid is clean. Now you're down to 2 choices.
2. An external physical leak (heater hose, heater core, radiator leak, water pump, cracked block, etc. etc.)
3. Into the combustion chamber (via head gasket, cracked head, or cracked cylinder wall). That would mean all your coolant is being changed to steam and is coming out the tailpipe. Due to high pressures in the cylinder, if this is the issue hydrocarbons WILL be in the coolant. If there are no HC's in the coolant the leak is EXTERNAL.
John ... have you spent any significant time under your rig looking for the leak? Since you've already poured a load of dye into the cooling system this would be a heck of a time to climb under the truck with your UV light and look for what my gut tells me is the real culprit.
Provided the leak down test was done PROPERLY, a 7 psi drop is less than 5%. If those drops were consistant for all cylinders they represent very good numbers.
As has already been asked, it appears no one at Toyota paid any attention to where the leak down air was coming out. Breather tube, intake, exhaust OR radiator .... that's important stuff to know. Unrelated to what is wrong with your truck, I would not go back to that dealer.
Let's get right to it .... that much coolant is NOT going into your oil. That leaves 3 places for it to go:
1. Transmission via tranny cooler. Toyota says tranny fluid is clean. Now you're down to 2 choices.
2. An external physical leak (heater hose, heater core, radiator leak, water pump, cracked block, etc. etc.)
3. Into the combustion chamber (via head gasket, cracked head, or cracked cylinder wall). That would mean all your coolant is being changed to steam and is coming out the tailpipe. Due to high pressures in the cylinder, if this is the issue hydrocarbons WILL be in the coolant. If there are no HC's in the coolant the leak is EXTERNAL.
John ... have you spent any significant time under your rig looking for the leak? Since you've already poured a load of dye into the cooling system this would be a heck of a time to climb under the truck with your UV light and look for what my gut tells me is the real culprit.
I have avoided posting anything on this thread because I know those who are commenting are much more knowledgeable than myself. However, I have had to deal with a few blown head gaskets in my day. First off, the given he amount of coolant you are loosing I highly doubt that the coolant is in your oil. If it was, then you would have a milkshake on your hands, again given the amount you are loosing. Also, I have not seen you mention anything about the infamous white smoke upon start up. I would believe that if the coolant was getting into your combustion chamber you would certainly see this white smoke when you start you LC in the morning. On one of my hilux I was loosing about as much coolant as you are. I too assumed the worst and thought it was a HG. However, it ended up being one of the radiator hoses that would only leak when it was running. It was a bitch to figure out because there was no visible leakage anywhere and naturally the leak was behind the engine and out of sight. I believe you are dealing with an external leak of some sort. That's my .02. Best of luck to you my friend.
I'm with the above comment. You are getting great advice here; better than i could provide Make sure to slow down; breathe deep; and make sure to follow the analysis sequences and tasks provided/requested.
How good is your nose? I know you said you don't smell coolant but you never mentioned in this thread ( or I missed it) the wet carpet under heater core on pass floorboard I read about on 80s tech post.
Look what I found with no smell in cab either. That would be a busted heater core btw.
If that is not it then I concur. Get your creeper and your black light and get under there
How good is your nose? I know you said you don't smell coolant but you never mentioned in this thread ( or I missed it) the wet carpet under heater core on pass floorboard I read about on 80s tech post.
Look what I found with no smell in cab either. That would be a busted heater core btw.
- Thread starter
- #109
So just an update. Still losing coolant a bit faster now. Still have not got my black stone kit. Still no puddles or leaks I can find under the truck. Looked hard! Put the black light on the heater core no green. So more diggin tho the green comes back in the power steering and transmission and lightly in oil (just did an oil change) but it's coming back to all the fluids. the power steering is like a bright light green also
Ok, so this is an indicator that your test is somehow wrong. There is absolutely no way that the power steering fluid can mix with the coolant during operation of the truck. It's simply not possible.
I suggest you put the UV pen down and focus on more traditional tests. Doesn't sound like the UV pen is helping at all.
I suggest you put the UV pen down and focus on more traditional tests. Doesn't sound like the UV pen is helping at all.
Do not in any way shape or for take my post serious here.
Come on man. We all know all fluids get together at night and have a party trying to see who can come up with the most messed up way to mess with their owners. Sad part is I actually believe part of that to be true. Had fuel dump out of a vacuum line on an old Yota truck of mine years ago. Jealous ass truck after I got my old brown FJ60.
Now back to your regularly scheduled program.
Come on man. We all know all fluids get together at night and have a party trying to see who can come up with the most messed up way to mess with their owners. Sad part is I actually believe part of that to be true. Had fuel dump out of a vacuum line on an old Yota truck of mine years ago. Jealous ass truck after I got my old brown FJ60.
Now back to your regularly scheduled program.
Any of that green s***zz get in the blinker fluid?
my truck like to try and get blood from my knuckles any chance it gets
Mine too. Blood and grease mix in my garage way too often.
That's a bad image.
hmmm don't want to know much more than that
- Status