Cold radiator under pressure!!
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Cold radiator under pressure!!
My 96 pickup with inline 6 started a drip from the right front of the radiator (when looking at the grill). When I opened the radiator cap (very cold engine) the fluid gushed out!! How can it be under pressure? Thermostat stuck?
Please help.
Thanks,
Steve
Please help.
Thanks,
Steve
Thread Starter
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New User
Joined: Mar 2002
Posts: 3
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Cold radiator under pressure!!
Now I'm starting to think the radiator was overfilled and the leak was from the overflow container. The radiator is still full!??! I started it and let it get warm, no problem. Drove it, stayed on low end of Normal range. Heater works fine too.
Could it have been overfilled?
Could it have been overfilled?
Senior User
Joined: Feb 2001
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Cold radiator under pressure!!
I noticed the same thing after I replaced my old leaky radiator. The old rad had a slight leak around the radiator pan gasket on the side of the upper radiator hose. When the engine was cold and I opened the rad cap nothing came out.
When I swapped out the rad for new one, and the engine was cold, fluid gushed out. I can only surmise that the pressure was always there, but the previous leak relieved it.
I didn't change out the rad cap, but I did replace the old 195 stat with a new 195. All new hoses too.
The engine isn't running hot, nor is it exhibiting any abnormal symptoms. I'm not worrying about it. Should I?
When I swapped out the rad for new one, and the engine was cold, fluid gushed out. I can only surmise that the pressure was always there, but the previous leak relieved it.
I didn't change out the rad cap, but I did replace the old 195 stat with a new 195. All new hoses too.
The engine isn't running hot, nor is it exhibiting any abnormal symptoms. I'm not worrying about it. Should I?
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