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Old 06-22-2000, 12:10 PM
emmy
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just replaced myu radiator, all hoses and expansion tank. Retained the exp tank cap because it is only 4 months new( so i was told)....

the upper radiator hose, i observe to collapse when engine cools off. SOmehow vacuum is trapped. Have seen posts about a possible defective cap, but would like to know if there may be other causes.

thx
emmy
91 560sel
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