![]() ![]() ![]() Give this a try and let us know the results. Drain the coolant and give the adhesive time to set before refilling and getting it wet I would hesitate to use the strongest grade of loctite because you might want to remove it later and some of the loctite formulas require heat to break the bond. In addition, you could coat the threads with a light amount of adhesive like RTV, or a mild loctite. It is possible that the bolt is just not a good threaded fit, or it has been compromised from rust or corrosion over time. It could be a leak from the head gasket area, or possibly from the front of the engine and the cooling fan is blowing it back. ) In the world of threaded fasteners (nuts, bolts, screws) there is a thing called "percent of thread," related to the contact fit between the threaded shaft and the mating part. 2,405 Answers Probably the coolant is leaking from somewhere higher on the engine than the motor mount, and it is running to the lowest point before dripping off. What is this bolt and why is it leaking coolant My beautiful, 'old to me' 2006 Silverado (5.3 '元3' engine) is dripping coolant out of a bolt in front of the engine. Do not tweak or try to tighten any of the bolts if they are correctly torqued to their recommended torque specification. 1 VE 2008 3.6ltr Not sure what that bolt hole is for above the water pump or why coolant is coming out of it. Leaks can also be caused by a bad thermostat housing, a worn intake manifold gasket, a bad heater core, a damaged radiator or cap, or a blown head gasket. If that is the only bolt that is leaking, I suggest you remove and replace only that bolt. Some of the most common reasons to see coolant under the car are a leaking radiator hose, a bad water pump or a loose radiator hose clamp. But before you launch into a major reinstall.a question and a suggestion. When the water pump fails, you may notice a coolant leak and the engine can overheat. ![]()
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