While reading this thread I was just struck by the fact that we get such good usefull information from the folks here. No thread hijack intended, but there were such simple clear effective troubleshooting suggestions and potential causes I just thought I would point out the obvious.
I digress...

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Jimmy L.
'05 Acura TL 6MT
2001 ML430 My Spare

Gone:
'95 E300 188K "Batmobile" Texas Unfriendly Black
'85 300TD 235K "The Wagon" Texas Friendly White
'80 240D 154K "China" Scar engine installed
'81 300TD 240K "Smash"
'80 240D 230K "The Squash"
'81 240D 293K"Scar" Rear ended harder than Elton John