Puzzled Coolant disappearing

jorge74

New Member
No leaks new radiator , new head gasket , compression test all good but ever 3 months or so coolant is low what gives? Reservoir goes dry i do find it wet around the cap is it suppose to be air tight ?
 

Esotericimage

Taking an H-T break
Registered VIP
5+ Year Member
No leaks new radiator , new head gasket , compression test all good, but ever 3 months or so coolant is low. what gives? Reservoir goes dry. I do find it wet around the cap. Is it suppose to be air tight ?

Jesus.. punctuation owns you..


Yes, the cap is supposed to be tight. If you looked everywhere and that is the only place that was wet, then that would be the 1st place I would start
 


bairdandrew77

New Member
It should be tight. You can rent a radiator pressure tester (whatever it's called) and use an attachment to test the cap. If it loses any pressure at all, it's bad.
 


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