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Old 08-05-2003, 11:07 AM
sbourg sbourg is offline
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Join Date: Jul 2001
Location: SoCal
Posts: 1,303
If it is leaking fuel, it is certainly bad, and should be replaced before it gets worse. BUT, a leaking regulator may cause no other problems. Performance problems would relate to its inability to maintain the correct fuel pressure, which must be tested with a pressure gauge. If fuel is truly leaking out the vent port, then why not replace it anyway, and if that does not solve the running rich issue, then at least you fixed the leak and have eliminated high primary fuel pressure as a likely problem too.

'91 MB 190E 2.3
'08 RAV4 Ltd 3.5
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