[V8] Strange no-start fuel issue

[Scott Simmons]

I was under the impression that Tom could spray a spritz of starting 
fluid and have the car fire right up..... sounds like he has spark but 
not fuel?

~Scott S.

Korn, Bob wrote:

>My faulty check valve only caused long crank times to get the car
>started. Usually a first try of a few seconds, if the car didn't fire I
>would stop and then restart, after a few more seconds it would always
>fire.  This was after sitting for extended periods or overnight.   Tom's
>saying his starts up first thing after an overnight, would rule out
>check valve in my opinion.  Sounds more like a crank or timing sensor
>issue? 
>
>
>BK
>
>-----Original Message-----
>From: v8-bounces at audifans.com [mailto:v8-bounces at audifans.com] On Behalf
>Of Scott Simmons
>Sent: Monday, April 28, 2008 1:40 AM
>To: toml99 at todomundo.com
>Cc: v8audi
>Subject: Re: [V8] Strange no-start fuel issue
>
>This could be a faulty check-valve at the fuel pump?  Letting fuel
>pressure drop while sitting.
>
>~Scott S.
>
>toml99 at todomundo.com wrote:
>
>  
>
>>Hi all, and congratulations to Roger on the new car.  As far as the
>>3.6-4.2 debate goes, with my convenient local station today listing 
>>premium for $4.16 and diesel for a pleasant $4.64(I have a diesel 
>>truck)...I can't rationalize even wanting a 4.2(but would still like
>>to testdrive one and feel the difference)     .....worse even is my  
>>1990 130 2 stroke outboard that burns about 8 gal/hr(somewhere between 
>>3-4mpg at running speed).  And for what it's worth, I just hit 110K, 
>>and my cargo nets are perfect....I also want to thank everyone else for
>>    
>>
>
>  
>
>>the enjoyable reading regarding the purchase of the vehicle...
>>
>>So here's the problem.  Car starts right up,runs/idles/drives great.   
>>I can even drive it 1/2 hour down the road, turn it off, starts right 
>>up.  If it sits for awhile(1/2 hour, up to today when it was 5 hours in
>>    
>>
>
>  
>
>>the ski area parking lot and was about 40 degrees out), cranks but no 
>>start.  Quick spray of starting fluid, and sparks right up. If I left 
>>it overnight in the driveway, will start first crank in the
>>morning.   First time this happened, I tried the cold water on the  
>>sensors trick, and nothing.  So, in today's case, the motor was not 
>>even warm when I got back to it, so it's not necessarily a
>>temperature thing, but is starting to seem like a time thing.   I  
>>also stopped twice on the way down for 5 minutes or so and started 
>>fine.  I'm guessing, something electrical is telling the injectors not 
>>to open, and that the starting fluid sparks it up and the fuel flows/or
>>    
>>
>
>  
>
>>some vacuum thing opens up when motor starts, and all is
>>fine....If it wouldn't start at all, I'd check all the fuel delivery   
>>stuff, but it's running great(after it starts).  [In the 87 Saab that I
>>    
>>
>
>  
>
>>just rebuilt and had gone thru all the tests for "no start"(had fuel 
>>pressure/injectors worked/spark etc, decided to swap out the ECU
>>and sparked right up].   I "blinked" out no fault codes the last time  
>>it wouldn't start.  Any Ideas?...Sincerely Tom La Plante
>>
>>
>>
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>>
>> 
>>
>>    
>>
>
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