Steve, how would this help ? Just curious.
Flattened radiator hose ?
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Joined: Oct 2002
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From: Dededo, Guam
Flattened radiator hose ?
Hey guys, I went out hill climbin this weekend and got out on the trails. I was chuggin along up one in 4L when I glanced down and saw my temp guage was pretty high. It went just a little past L in NORMAL. I did not reach H. I opened my windows and turned the heater on full blast to help cool the engine. I kept going up the hill. when we (a jeep and a blazer) got to the top we all stopped to cool down. I shut off the truck and popped the hood to vent the heat. That is when I noticed the upper radiator hose was flat. It looked like it sucked it self flat and my coolant overflow was half full (usually empty). Should I worry about the cooling system ? It has been running fine since. Sorry for the long post, just wanted to give good background info. Any help would be appreciated.
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Joined: Feb 2002
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From: Gilbert, Arizona
Flattened radiator hose ?
Lots of radiator hoses have a large coil spring inside them to prevet collapsing. It's likely that whoever changed the radiator hoses in the past forgot to remove the spring from the old hose and put it in the new one.
My 460 has a spring in the upper radiator hose, but I'm not sure about your truck.
Scott
My 460 has a spring in the upper radiator hose, but I'm not sure about your truck.
Scott
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Flattened radiator hose ?
Usually it is the bottom hose that colapses due to the suction created by the water pump. Modern hoses have the spring moulded into the hose but older style hoses will have a separate spring inside the hose. Unfortunately these springs rust into oblivion. Perhaps you should do a coplete check of the cooling system and get the rad checked out too.
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From: Dededo, Guam
Flattened radiator hose ?
My hose did not have have a spring in it last time I replaced it. They are getting soft. I need to replace them soon. Do you guys have any tips or ideas on how to service my cooling system and the heater core ? How do I do a backflush? Any info would be appreciated.
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Joined: Dec 2002
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From: Graniteville Aiken
Flattened radiator hose ?
The radiator cap acts as spring loaded valve/vent. It allows the cooling system to push fluid out as it expands and pull fluid in when it contracts. If the caps malfunctions it could create a vacuum in the sytem and maybe collaspe a hose. I may have the expand/ collaspe part crossed up.
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Flattened radiator hose ?
The radiator cap is supposed to vent any pressure over its rating (usually 13psig) into the overflow tank. When the engine cools and the coolant & trapped air shrink, the cap is supposed to allow the fluid in the tank to be pulled back into the cooling system. Obviously, your cap is malfunctioning, or it's just the wrong cap.
They're only a few bucks and it doesn't hurt to change them every couple of years. It's cheap insurance.
They're only a few bucks and it doesn't hurt to change them every couple of years. It's cheap insurance.
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Joined: May 2002
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Flattened radiator hose ?
That's weird I've never heard of the top hose colapsing, but yes the lower hoses are usually the one's with the springs in them.
Replacing the cap sounds like a logical place to start.
Replacing the cap sounds like a logical place to start.
Last edited by SPROCKET; Jan 23, 2003 at 09:59 AM.