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Old 08-09-1999, 12:21 PM
intruder intruder is offline
Registered User
Join Date: Jul 1999
Location: Youngstown, OH
Posts: 150
I have been told I have a clogged cat by a MB mechanic. I also have a definite rise in engine coolant temp on the highway right as the engine approaches 3500 RPM. I saw the previous note about the "popping" check at 3500 RPM and wondered if this could be syptomatic of the same problem.