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lower heater hose is crunchy inside?

Spiffy
in Old Gen.: 80's GL/DL/XT/Loyales...

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so my heater core in my '82 GL is mostly clogged so I was feeling up my heater hoses to see which is the intake and which is return... well the top hose was really warm and the bottom wasn't... question answered...

 

however, when I squeezed the lower hose it was all crunchy inside...

 

I'm afraid...

 

what do you think is in there? old rust? it is crunchy all the way from the firewall to the water pump...

 

I'm waiting for it to cool down right now so I can disconnect the hoses and flush everything out...

 

--Spiffy

it's time to change that hose; it's the rubber on the inside of that hose getting crunchified.

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