Slight change in topic if I may......but where is the EHA located. I'm sure mine is working well but a gas fume problem I'm having and several suggested looking for leaks at the EHA.

THANKS in advance.

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1991 300SE (my ride, 279,000 miles, looks almost new
1954 Cadillac (21 yo son's car, he bought when age 15)
1972 SeaBird 19 ft runabout (old but solid, slant six, Volvo sterndrive perfect condition, undergoing complete overhaul and refit)
1998 Toyota Rav4 (my sons daily driver when he is in the Continental US, PROUDLY serving in US Navy)