Asked by Andy Blackwell Uncategorized
How much fluid will a freeze plug leak if it was bad?
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How do you know you have a leak from a freeze plug?
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Asked in Oldsmobile Cutlass Supreme, Chevy 305
Would a leaking freeze plug cause a 1983 305 Chevy sb to overheat?
Once it gets low on coolant because of the leak, absolutely. The leak by itself won't make it overheat if it's a small leak and your coolant level doesn't get low. If you DO have a leaking freeze plug, it WILL get worse, and probably rapidly. Also, if one freeze plug has rusted through and started leaking, you should replace ALL of them because the others probably aren't far behind.
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Is a freeze plug responsible for loud knocking and stalling of an engine?
The only purpose for freeze plugs is for preheating an engine block before starting. When a freeze plug is bad they will generally leak coolant but not be responsible for a loud knocking noise. If I were you I would first verify the correct fuel is in your tank (gas or diesel). Second check ignition timing, Third check for bent puchrod which this one should also give back fireing. Only if the freeze plug is leaking enough to cause the engin to overheat. A freeze plug is SUPPOSED to allow the coolant to push out the plugs if the water freezes. The freeze plug seals in the coolant when everything is working normally. Freeze plugs can rust through and leak, but that's all they do, they don't cause noise unless your engine is overheating.
Asked in Antifreeze and Engine Coolant
Antifreeze leaking from back of engine?
More than likely your freeze plug is going to be the culprit and I would suggest you look there first. On some vehicles, the freeze plug is covered by the transmission housing or just plain difficult to get to and inspect for the average person. On older models, the freeze plug can rust out and create a leak. In this case take it to your trusted mechanic for repair.