A chemical head check is a quick and simple test for a head problem, with coolant being expelled I am thinking that there is a build up of pressure in the system due to a combustion leak, a faulty water pump will not normally give you your symptoms, check the head gasket first. A faulty water pump expecially with no thermostat will not cause overheating as the natural thermal flow of water with no thermostat will over come any pump preformance problems.
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Tuesday, June 30th, 2020 AT 12:31 PM
(Merged)