green antifreeze to pink
#11
#14
Start the truck cold. Grab the upper rad hose. If it gets hard right away you got problems. Rad cap ain't gonna fix that and your van should have had Dexcool. Someone probably mixed green and it deteriorated the HG. Or worse.
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Also not sure how easy you can see in a van overflow but if it looks like this...Not good...
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Also not sure how easy you can see in a van overflow but if it looks like this...Not good...
Last edited by acesneights1; 01-01-2013 at 07:53 PM. Reason: Automerged Doublepost
#15
my upper rad hose is the metal flex line as i added a second alternator on the right and the factory hose was to short.but when i was replacing the thermostates this weekend with gm oem replacements i found the flex line where it connects to the thermostat houseing was leaking and going into the valley pan because the shop that did the fuel injector pump didnt tighten it all the way and i had it running with the dog house cover off and was checking for leaks and found it leaking there. now all i have to do i replace the crank sensor and get it back on the road and see what it does from there.
#19
no bubbles in the tank and im positive i found the leak on the line going to the thermostate housing but ill have to replace the crank sensor so i can get it started and drive it around to see how it runs..and people are saying that having an electric fan on there is a bad idea not sure how as it runs cool even in the summer heat
#20
Do you tow with the van ?
No electric fan will ever pull more air than the engine driven fan. The only issues were that there is so much crap stacked in front of the rad that the bi metal strip on hte fan clutch doesnt always work properly even with recalibrated ones. I have seen guys with 6.5 trucks that had no a/c and no condesor tow real heavy even with the earlier cooling systems and never have an issue and I have had every mod and ran hot.
2500 cfm is a fart in the wind compared to what the engine driven will pull.
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The factory engine driven fan pulls about 10,000 cfm.
No electric fan will ever pull more air than the engine driven fan. The only issues were that there is so much crap stacked in front of the rad that the bi metal strip on hte fan clutch doesnt always work properly even with recalibrated ones. I have seen guys with 6.5 trucks that had no a/c and no condesor tow real heavy even with the earlier cooling systems and never have an issue and I have had every mod and ran hot.
2500 cfm is a fart in the wind compared to what the engine driven will pull.
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The factory engine driven fan pulls about 10,000 cfm.
Last edited by acesneights1; 01-01-2013 at 08:46 PM. Reason: Automerged Doublepost