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Old 09-05-2000, 06:41 PM
jeffsr jeffsr is offline
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Join Date: Jan 2000
Location: New Bedford, MA USA
Posts: 1,583
This is not uncommon at altitude. Most caps are set to hold to about 14-15 psi at sea level. I can't give you the exact altitude/pressure correlation, but, the relative pressure inside the cooling system increases as altitude increases, even w/o overheating. Solution-> high pressure cap for life above the clouds. Or, your cap is not holding it's rated pressure and needs to be replaced.

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Jeff Lawrence
1987 300e
1989 300e
2000 Dodge Grand Caravan SE



[This message has been edited by jeffsr (edited 09-05-2000).]
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