Strange Noise - 1970 Imperial

[Mark McDonald <tomswift@xxxxxxxxxxxxx>]

it sounds like the same noise my '68 makes.  Mine sounds like a watery
kind of fluttering or sucking sound.  I was told that my heater hoses
were probably reversed, but I haven't had a chance to check it.

However, my noise stops when the engine is turned off.  So I'm not sure
if this is the same thing or not . . .

MM

Elijah Scott wrote:

> Hi Folks,
>
> My '70 Imperial is exhibiting a strange noise at
> times, and I'm unsure of the source.
>
> The noise is coming from the area in the front cowl
> where the passenger side floor vent would be.  Since
> the car has AutoTemp (1967-1970 first generation
> AutoTemp), there's no vent there.  The noise sounds
> like sort of a fluttering-sucking sound (which is the
> best was I can think to describe it).
>
> At first, I thought it was the heat riser flap, but
> the noise continues even when the engine is turned
> off, as long as the key is in the accessory position.
> It even happens occasionally when the switch is first
> turned on and still in the accessory position.
>
> Is this some anomaly with the AutoTemp system?  Has
> anyone else encountered this one before?
>
> Thanks!
>
> Elijah
>
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