Thread: Pressure from Gas Cap
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Old 01-30-2007, 11:29 AM
david s poole david s poole is offline
david s poole
  
Join Date: Mar 2005
Location: dallas
Posts: 1,822
the evap system has a valve which holds about 6-7psi [from evaporation due to heat from the sun] and it is quite normal to hear noise even in winter and especially when tank is heading to empty.
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David S Poole
European Performance
Dallas, TX
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1987 Mercedes Benz 420SEL
1988 Mercedes Benz 300TE (With new evaporator)
2000 Mercedes Benz C280
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