Questions for the PROs of trucking/mechanics.. Coolant pushing out.
Discussion in 'Trucks [ Eighteen Wheelers ]' started by PrettyBoyTrucker, Feb 25, 2016.
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Not a gallon a day and not while the trucks running but our cascadias leak in real cold weather. Heater lines shrink a bit from the cold and force coolant out.
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Just like Heavy said. Several different tests need to be run to figure out what is going on before you get to deep.
I recently had a customer come in that was pushing water out of his tank. I checked for pressure build up when revving up truck with a pressure tester and it did not build up. The temperature would not get above 175 because his fan is always running (another issue for another time). I figured out it was a ground problem so I installed a temporary ground and got the temp up to 210 and it did not push out. I installed a new cap and put a antifreeze jug with a bungie cord attached to his overflow tube. He came back the next day and it was full. So I ran a test with the testing fluid to see if there were any compression gases. There were none. I removed and replaced his air compressor. No more issues.
Now here is what other mechanics in the area had done to the truck before this. He had it overhauled. It pushed out water. They removed the head and installed new gasket. It pushed out water. They had the block counter-board. It pushed out water. Then another mechanic installed not one but two head gaskets. This is the tester I use. I highly recommend it. http://www.uview.com/index.cfm?dsp=productdetail&id=45700&productid=5122Cruisin thru, The Admiral, taxihacker66 and 1 other person Thank this. -
There are parts changers and there are mechanics. The ones that take the time to properly diagnose are worth paying the price for and the truck you described is proof of that. -
I also tested for compression gases after installing the new compressor and found none. Installed the "test" jug and no fluid in jug after several hauls.
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How much for the tester?
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AmazonThe Admiral Thanks this. -
Just bought 1 $86. With tax at FGI.
The Admiral Thanks this. -
did the combustion test came back negative. the mechanics at the kenworth dealership here in harrisonburg va are unsure. they did the bottle test as well not signs of a blown head gasket.
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so they are planning to dig deeper before removing the head in that not be the issue. they said they test drove it with the combustion test & all they got was water/cooliant pushing out the radiator. all these repairs are covered by the dealership i purchase the truck from. so im at the point just say its the head gasket. but 1 gallon of cooliant per 500 miles is what is pushing out. any ideas what the issue is. truck has 650000k miles
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