I have developed a cold start rattle in my FEH. The longer the car sits the lounder and longer the noise lasts. I have not narrowed down the source, but it is clearly under the hood and not related to the A/C compressor.

Has anybody had any similar noises?

Thanks.

05 (early) AWD FEH
27,000 miles

Chris Brown
Mendocino County California

No idea, and that's just not right.

Just a silly suggestion, but have you tried taking the "suitcase" engine cover off and put it back on? It may have come loose and that's what's rattling.

First 4WD Hypermiler

Have you read the FEH FAQ?

Live in Michigan? Let it be known in Michigan Roll Call

Read My Automotive Blog at Rich Rambles

I think I was slightly unclear....I will check the engine cover though.....

The rattle goes away once the engine runs for 10 secs or so, if run the night before and 2 minutes, if it sits for more than 48 hours.

My gut is telling me it is something rattling when the engine is "dry" and once oil pressure builds up it goes away.

Chris