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Suspect water pump

Originally Posted by Z_ealot I ran a block test on it today and block testing fluid did not change color so as far as I can tell the head gasket

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Old 06-21-2017, 10:42 PM   #1 (permalink)
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I ran a block test on it today and block testing fluid did not change color so as far as I can tell the head gasket is fine, while I had the coolant partially drained I decided to take a look and see if coolant was flowing as it should with the thermostat open....as far as I could tell the coolant wasn't really flowing so much as it was just collecting in the fill neck even after revving the engine up to about 2500rpm....seems like pressure just builds in the system, but coolant isn't really flowing much.
When fully warm with a non touch temp gun is heat fairly even between upper rad hose and lower and is it fairly even across the radiator? Also may test at heater core hoses too to see if flow is getting through the system. With everything flowing then temps should be fairly close to each other.
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Old 06-21-2017, 11:09 PM   #2 (permalink)
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When fully warm with a non touch temp gun is heat fairly even between upper rad hose and lower and is it fairly even across the radiator? Also may test at heater core hoses too to see if flow is getting through the system. With everything flowing then temps should be fairly close to each other.
Unfortunately dont have one of those, the only thing i can tell you is just by touch both the upper and lower radiator hoses feel about the same temperature with the lower radiator hose feeling very slightly cooler. Any chance of an inrared temp reader being rented out by someone? Lol oh and as for the radiator as far as i remember the temperature feeling by hand was pretty consistent across the entire radiator

Last edited by Z_ealot; 06-21-2017 at 11:38 PM.
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