[s-cars] Strange Fuel Pump Behaviour

[Brian Armstead]

What's the repair or check procedure Joe?

Thanks,

Brian

Joe Pizzimenti wrote:

> Sounds like a clogged evap canister.
> 
> 
> On 6/9/08, Matthew Russell <skippertgore at msn.com> wrote:
> 
>>Brian -
>>
>>I'm not necessarily convinced that this is a fuel pump problem.
>>Try loosening your gas cap next time you notice the noise.  If fumes
>>and air escape (which it will) and then the noise is gone, it's a tank
>>venting issue.
>>
>>My car makes similar noise, i've been ignoring it for a while now
>>(>1yr).  not sure of the long-term effects though!
>>
>>
>>Matt, CO
>>92s4
>>
>>
>>On Jun 9, 2008, at 7:27 AM, Brian wrote:
>>
>>
>>>
>>>All,
>>>
>>>Took my '93 S4 out yesterday in 100 degree heat for a cruise.  Car
>>>battery had died so the night before I charged it up.  After getting
>>>to
>>>my destination, I noticed a slight hum/whine from the trunk when I
>>>shut
>>>it down (lasted about 5 seconds).
>>>
>>>When I got home after pushing the car hard, the hum/whine would not go
>>>away after I shut the car off.  Opened the trunk, put my hand on the
>>>top
>>>of the fuel pump access plate, and could feel slight vibrations.
>>>Pulled
>>>fuse number 17, no change.
>>>
>>>Here's where it gets a bit weird.  Pulled the negative battery cable
>>>(I
>>>smelled gas fumes and this thing was still whirring) and the STILL
>>>felt/heard pump noise.  Finally died out after a couple of minutes.
>>>
>>>3/4 full gas tank, 134K miles, no previous trouble.
>>>
>>>Help!!
>>>
>>>Brian
>>
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> 
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