Re: Pierburg fuel pumps? ...more info

[Mike Arman <armanmik@n-jcenter.com>]

Have you changed the cannister fuel filter in the engine compartment? I've
seen changing these quiet the pump right down and make the car run much
more smoothly. I've seen them almost blocked solidly, and the pump still
pushed fuel through them, but at the cost of noise and short service life.

Best Regards,

Mike Arman




At 12:25 PM 8/3/1999 -0400, you wrote:
>Heh...tried that way already.  Here's way more additional info than anybody
>wants...
>
>Removed the FP from my disabled '87 5KCSTQ, put it in the '89 200 TQ.  Ran
>quiet for two weeks, then started howling, too.  Now car misses, FP buzzes,
>howls, etc,  just like the old one. The pump in the '87 had only seen about
>12 months of service.
>
>Sometimes when this howling is occuring, I kill the ignition while going
>down the highway, restart, while still rolling, and the pump is quiet.  When
>it's quiet, engine doesn't miss and car performs well.  As soon as the buzz
>starts, forget it!  Bucking and missing starts with a vengence!  Seems a bit
>worse in hot weather.
>
>I originally thought it was the fuel pressure accumulator, replaced that
>first.  Buzz continued. Replaced with "new" pump from '87.  Only two weeks
>of quiet.  It's been a little hard for me to believe that the pump from the
>'87 was bad, too.  Doesn't seem to be the FP check valve--since I also
>replaced that with the one from the '87.  Anyone ever heard of a bad
>vibration damper on top of the pump?  That really seems like a strech to me.
>
>I'm pretty certain I need new injectors--get the characteristic 2-3 cranks
>on cold start, raw fuel smell, and blue smoke.  Any way bad injectors can
>kill a FP??
>
>Meanwhile went ahead and ordered a FP made by "Master" (?) at my local
>Advanced Auto Parts (formerly Parts America) for $182.00...hope I don't
>regret it!
>
>--Kurt
>
>
>----- Original Message -----
>From: Mike Arman <armanmik@n-jcenter.com>
>To: <quattro@audifans.com>
>Sent: Tuesday, August 03, 1999 10:54 AM
>Subject: Pierburg fuel pumps?
>
>
>
>>
>> Yep. $14.99 at the local you-pull-it yard. Pump running happily and
>> silently for over a year now - and two spares sitting on the shelf just in
>> case, for later . . .
>>
>>
>> Repeat after me: "Retail is for other people. Retail is for other people."
>> etc.
>
>
>