Vehicle keeps embarrassing me! - Social Anxiety Forum
 
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post #1 of 8 (permalink) Old 10-14-2019, 06:52 AM Thread Starter
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Im driving this old vehicle of my Dad...and I want to sell it so I can buy another one. The problem is...everytime I try to sell it...it shows an embarrassing problem.

The problem I have now is a phantom coolant leak. I say phantom because some days it leaks...and some days it doesnt show. Everytime it does leak it happens at work..right in front of everybody.

Many times I have tried to look unde the hood but nothing comes out.

I have already changed the water pump and the radiator.

I want to sell this POS so bad...but it keeps springing up problems b4 I can even sell it...
Gad dangit....I need a lottery so I can give it a full workup.
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post #2 of 8 (permalink) Old 10-14-2019, 09:37 AM
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Whoever changed the water pump and the radiator should have been able to tell you that wasn't the problem before doing the work, I would think.

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post #3 of 8 (permalink) Old 10-14-2019, 10:53 AM
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Originally Posted by VIncymon View Post
The problem I have now is a phantom coolant leak. I say phantom because some days it leaks...and some days it doesnt show. Everytime it does leak it happens at work..right in front of everybody.
Sounds like heater hoses to heater core leak.

Sometimes is the clamps themselves on the hoses or the pipes they clamp onto have rotted away (maintenance issue).

Go to a radiator specialist or mechanic and get them to pressure test the cooling system. The leak usually shows up when above certain coolant temp.

Basically it can leak on hot days, but not at night when is cooler or on days ẃhen is cooler.
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post #4 of 8 (permalink) Old 10-14-2019, 11:47 AM
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Do you smell coolant when you turn on the heater?
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post #5 of 8 (permalink) Old 10-14-2019, 03:08 PM
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What about the radiator cap, it has a rubber seal & is sometimes spring loaded & those can deteriorate in older vehicles.






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post #6 of 8 (permalink) Old 10-14-2019, 03:08 PM Thread Starter
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Originally Posted by Mondo_Fernando View Post
Sounds like heater hoses to heater core leak.

Sometimes is the clamps themselves on the hoses or the pipes they clamp onto have rotted away (maintenance issue).

Go to a radiator specialist or mechanic and get them to pressure test the cooling system. The leak usually shows up when above certain coolant temp.

Basically it can leak on hot days, but not at night when is cooler or on days ẃhen is cooler.
Ok....because...many mornings I have looked under the hood for the leak...see nothing...drive to work and when I park... there it is.

But if it's a cloudy day..nothing happens.
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post #7 of 8 (permalink) Old 10-14-2019, 03:25 PM
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Originally Posted by VIncymon View Post
Ok....because...many mornings I have looked under the hood for the leak...see nothing...drive to work and when I park... there it is.

But if it's a cloudy day..nothing happens.
In the mornings before starting the engine, the water / coolant is cold, so it contracts (no pressure).

When engine is on for ń while the coolant gets hotter and it expands (creates pressure which causes leaks when water / coolant is at operating temperature).

The water / coolant expands into the overflow bottle via a little hose from top of radiator.

You wait until engine is cool (takes about 4 hours or slightly more) and top up overflow bottle with water only if goes below low mark on overflow bottle. Never mix coolants as can cause a reaction which eats rubber parts.

In old classic American cars you used to fill radiator near the top with water / coolant. The water / coolant when engine was hot would expand into that empty space at top of radiator.

If look on firewall (back panel of engine bay) there should be two hoses on passenger side leading to side of engine.

Those are the heater hoses from heater core / plastic bottle under dash in the cabin where you sit, which the aircon uses. Those hoses then go to the side of engine.

Those are the hoses that commonly leak on many cars.
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post #8 of 8 (permalink) Old 10-22-2019, 01:32 PM
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Quote:
Originally Posted by Mondo_Fernando View Post
Sounds like heater hoses to heater core leak.

Sometimes is the clamps themselves on the hoses or the pipes they clamp onto have rotted away (maintenance issue).

Go to a radiator specialist or mechanic and get them to pressure test the cooling system. The leak usually shows up when above certain coolant temp.

Basically it can leak on hot days, but not at night when is cooler or on days ẃhen is cooler.
Back in April, I found myself between two accidents. Two pairs of cars and I managed to swerve out of one pair and end up between the pair in the front....I was ready to turn out and continue driving when the frontmost drivier told me I was leaking.....coolant.


I ended up having to pay for a new radiator (and the tow to the dealer) since it was under my insurance. No claim, though.
I get it replaced and within two days. The coolant leaked out and I had to have it towed again. They had to replace the hoses AND the clamp that holds it to the radiator. They should have paid for my tow, but they fixed the issue for free.


Like MondoFernando says, something was likely missed.

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