[urq] Injector cooling fan...or something else

[Thatcher Hubbard]

Interesting, I thought it came on whenever that temp sensor on the 


On Tue, 16 Nov 2004 09:54:59 -0700, Brandon Rogers <brogers at terrix.com> wrote:
> That probelm has nothing to do with your injector cooling fan - which only
> comes on after shut down.  Are you driving the car without the little
> odd-shaped hose?  If so bingo (maybe) - I think the WUR uses manifold
> pressure to control fuel pressure, too, not just warm up. If you still have
> it all connected - I would first check for vacuum leaks and check the duty
> cycle.  Also check fuel pressure.
> 
> hth
> 
> Brandon
> 
> 
> 
> 
> ----- Original Message -----
> From: "Thatcher Hubbard" <thatcher.hubbard at gmail.com>
> To: <urq at audifans.com>
> Sent: Tuesday, November 16, 2004 8:34 AM
> Subject: [urq] Injector cooling fan...or something else
> 
> > After a four-month head reconditioning project, my car has been back
> > on the road for a couple of weeks (thanks to suggestions from a number
> > of people here).
> >
> > I haven't been driving it a lot because there is a fair amount of
> > front suspension work I'm going to do on it, I also have all new motor
> > and tranny mounts to install.  Oh, and one of my outside CV boots
> > cracked while the car was sitting so I have to replace that too.
> >
> > I have not taken the car over 3500rpm yet, I've been trying to ease it
> > into things.
> >
> > Because I'm waiting for an odd shaped hose that goes on the warm-up
> > regulator, and I've not been driving the car hard, and it's quite cold
> > outside here in Montana, I have not re-installed the injector cooling
> > fan.
> >
> > A couple of days ago, after driving it to the grocery store, and
> > idling it in the parking lot for awhile waiting for my girlfriend, it
> > would buck and hesitate when I started from a light or a stop sign.
> > After the engine got over 2800rpm, or after I got it into third, it
> > would stop doing it.
> >
> > I always thought that the injector cooling fan was one of those things
> > that rarely comes on, I had never heard it, and didn't even know if it
> > worked.  But whenever it gets warm, my car seems to do this.
> >
> > The easy test, is, of course, to re-install the fan, which I'll do
> > this afternoon.  I guess my question for the list is this:  Could this
> > be the beginning of fuel pump failure?  It only seems to be a problem
> > when the car is "hot' and I'm in stop-and-go situations, it does fine
> > cruising.
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>