[V8] Fuel Pump Failure Modes

[Ingo Rautenberg]

Steve,

Don't forget the Fuel Pump Relay.  It may be on its way out!  Did  
your pump make any noise?  How much fuel in the tank? I wouldn't  
discount the flywheel sensor/s, either btw.

Ingo

On Jul 24, 2007, at 11:49 AM, Coleman, David wrote:

> Oh man that's the worst kind of mechanical failure -- you'd have been
> dead in the water, had to pay for a flatbed, and then been unable to
> diagnose because it ran again.
>
> Are there any codes now (or from yesterday that have disappeared)?
> I've never had any fuel pump go bad then later come to life either...
> Though just a thought, don't you have some crazy steep driveway?     
> Not
> to discount your expertise in the least, but did you run out of  
> gas, but
> after sitting on a steep incline, the FP got refilled?
>
> Otherwise... When it conked out, did it just die, or stumble before
> eventually cutting out completely?   I assume it would turn over when
> trying to restart, but did it sputter or almost catch when trying to
> restart at all?
>
> -dave-
>
>
>
>> -----Original Message-----
>> From: v8-bounces at audifans.com
>> [mailto:v8-bounces at audifans.com] On Behalf Of urq
>> Sent: Tuesday, July 24, 2007 11:04 AM
>> To: v8 at audifans.com
>> Subject: [V8] Fuel Pump Failure Modes
>>
>> Driving home from an errand yesterday afternoon and #2
>> completely lost power.  Fortunately we were close to home
>> *and* at a higher elevation relative to the house.  Coasted
>> home while trying to "push" start the engine a bit along the
>> way.  When the engine was being turned by the motion of the
>> car the tach was working, so I'm pretty sure the flywheel
>> sensors are OK.  I was thinking the fuel pump had died, but
>> last night I went to move the car a bit and tried starting it
>> just for the heck of it ... and it started just fine.  This
>> is making me wonder if the problem was the fuel pump or not.
>>
>>   Has anyone seen fuel pumps work again after failing?  My
>> other experience with fuel pumps is that they tend not to
>> start working again ... I can't remember that happening even once.
>>
>>   TIA!
>>   Steve B
>>   San Jose, CA (USA)
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