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If the level of coolant rises up quite a bit in the neck of the radiator when you rev the engine that can be a sign of a partially blocked radiator. With an IR thermometer you can look for cold spots on the radiator. Blockages or heavy scaling shows up pretty well with one of those handy tools.
If the level of coolant rises up quite a bit in the neck of the radiator when you rev the engine that can be a sign of a partially blocked radiator. With an IR thermometer you can look for cold spots on the radiator. Blockages or heavy scaling shows up pretty well with one of those handy tools.
