if the lower rad hose is coled it would meen the rad is clogged. sorry to hear this. i never had this problem even sitting in stop n go traffic with it
Engine Hot
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Not a problem, I still love the car. Now to unclog the radiator... .. going to do some searching.
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Im going to check to see if it has dents tomorrow and hopefully can just unclog it, if not a new one goes in. Next I need to get my check engine light off.. I bet its my 02 sensor(s).Last edited by Need4Speed1299; 10-27-2008, 09:35 PM.
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Fully bleed the system (procedure below). Then drive the car a bit and re-bleed. If there'a significant relase of air on that or subsequent bleeds, the cause of the overheats and hard hoses is a failed head gasket.
1) Using ramps or a jack get the front of the car 1' or more higher than
the rear. That will make the radiator and bleed screw the highest point
on the engine and facilitate removal of air.
2) With the bleed screw open, add coolant until no more air comes out of
the bleed.
3) Leave the filler cap off, or at least loose, and set the heat for max
temp and fan speed. Leaving the cap loose will prevent air that's still
in the system from causing a "coolant fountain" once the engine heats
up. Start the engine and allow it to warm up to operating temp. As it
warms up occasionally crack the bleed screw to release any air and top
up the coolant as necessary.
4) Once the engine is at temp bring it up to 2000-2500 for a few seconds
several times. Then crack the bleed until no more air is released. At
this point the heater should be throwing lots of hot air, which
indicates that the heater core is filled with coolant. You may have to
repeat this a few times to get all the air out.The car makes it possible, but the driver makes it happen.
Jim Levie, Huntsville, ALComment
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I just replaced a lower hose in my cooling system and I drove the car around the block, the temp gauge went to 3/4 and the coolant container was boiling the water inside. I could see and hear the bubbles... Is that caused by the air in the coolant system?
Thanks!
BTW: I'll be trying the procedure above^^^ thanks for posting.Comment
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I'm gonna bump this, as I am having practiclly the same issue, and the thread isn't old.
Cold lower hose, piping hot upper hose, piping hot bypass hose, heat is blasting well, new t-stat (thinking it could be a bad new one), and I pulled the radiator and checked flow, she ain't clogged.
Any more ideas? This is killing me....Comment
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Thread not too old for newbies to learn. What is the end of the story? What happen with your case, Needy???? I may have to do this thing in the near futre...1997 328i - SOLD
1991 325is - SOLD
2002 325i - SOLD :(
Currently:
1991 318is
2011 328i xDrive
2017 Highlander - Toy Hauler
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