‘02 Ranger Coolant Leak from Heater Valve
‘02 Ranger Coolant Leak from Heater Valve
Hello all! First post here because I can’t seem to find an answer through the search engine. There is coolant leaking at the hose connection to my heater bypass valve. The other day while sitting at a light white smoke started coming out from under my hood. From further inspection it looked like coolant burning off the engine form a small squirt of antifreeze from the hose connection. It doesn’t seem to leak while the truck is sitting overnight, only when the engine is running. I want to make sure I’m replacing the right component and not throwing money in the wrong direction. I will post a photo here to show what I’m seeing. So essentially my question is if there’s a leak at the connection how can I tell if it’s the valve that needs replacing, or the hose? My whip only has 80k miles so I wouldn’t think the hose could have already gotten cracks or pinholes. Anyways, any insight would be helpful and very much appreciated.
Looks like a bad clamp, or the clamp created a hole. Heater bypass valves usually fail where they are actuated. I would trim the hose some and use a quality screw type clamp before buying the valve if it weren't an obvious leak.
Luckily for you, a new heater bypass valve is only about $30 if the hose isn't the issue.
For what it's worth, mileage means nothing. I've replaced all of my heater hoses at this point because they leaked at the plastic t-fittings. The hoses aren't the problem, it's the plastic.
For what it's worth, mileage means nothing. I've replaced all of my heater hoses at this point because they leaked at the plastic t-fittings. The hoses aren't the problem, it's the plastic.
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mchelec
General Ford Ranger Discussion
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Dec 2, 2017 04:25 PM
stoveboltgunnut
General Ford Ranger Discussion
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Aug 24, 2017 09:32 AM
The_Dealer
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Nov 1, 2007 02:44 PM




I myself have never bought a new one.. just omitted them. I know what the intention was, but never really noticed any difference.
