Thanks for the reply!

1) Temperature range... is it normal to get over a 100 on a hot day in stop / go traffic? Other than the rad, thermostat and fan clutch, what else should I be looking at?

5) Engine sound... I took a listen today, and the noise is coming from right around the front left side of the engine bay (right around the thermostat). Any ideas on what could be making the noise? Again.. sounds like a rattling sound. Engine mounts were replaced a couple years back.

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1993 300CE