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Old 05-21-2000, 04:57 PM
JoeB JoeB is offline
Registered User
Join Date: Nov 1999
Location: Germany
Posts: 63
Had same problem with 87 420 SEL for months, then spent $5 on new gas cap, problem solved....folks at European Autoworks say it is a common problem. If cap is not completely sealing 100%, fumes back up into trunk and thence to passenger compartment...I noticed it especially with sunroof open and windows up, which created a slight vacuum in the passenger compartment at speed that would draw fumes from trunk...twice stopped and checked under hood and car for "leak" cap fixed it.

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