Or what about a starter relay???????


One out of many daves wrote:
> Hmmm so he says that there is no fuel pump, or fuel delivery system, in the
> fuel tank? I am definitely not sure on this.
> Maybe that is the main fuel pump for your vehicle.
>
> I have seen a lot of crud in fuel tanks that only clog the pickup strainer
> after running for awhile. Then of course when the engine stalls the vacuum
> that is created by the fuel pump drops to "0" and the crud falls back to the
> bottom of the tank. Then you can start the engine again and start this
> cycle all over again.
>
> And like you said you removed the gas cap and it seemed better. Maybe there
> is a vacuum created inside of the gas tank that might cause a reduction in
> fuel pump pressure.
>
> Fuel pumps need to create not only pressure but also volume. The ruptured
> fuel pressure regulator would probably only cause a very slight drop in fuel
> pressure. It is usally discovered when the vacuum lines to it are examined
> with the engine running. Of course some signs will be an engine that is
> idling rough, bad mileage, etc.
>
> Hmmm since you said that your cap was replaced then I will assume that your
> '99 still has an ignition coil (transformer). That might be your problem
> and I only recommend purchasing them from the dealer. I have had problems
> with aftermarket brands.
>
> good luck!
> --
> later,
> dave
> (One out of many daves)
>
>
> "andrea" > wrote in message
> ups.com...
> > Hi Dave,
> >
> > I am so psyched that you wrote back. Yes it is the 2.0 and the car
> > only has one fuel pump. My mechanic checked the fuel pressure and the
> > fuel regulator twice and they both checked out alright. He also
> > thought/stated that if the fuel pump was starting to fail, it wouldn't
> > be able to put out the pressure. Wouldn't that take care of the
> > ruptured fuel regulator?
> >
> > Also I have gotten a check engine light...twice....not when it loses
> > power and dies on the side of the road but twice when I let it idle for
> > long periods of time with the AC on high and it stalled, which did not
> > make my mechanic very happy! However, after all the times when I have
> > let it idle like this is when it will then lose power a short time
> > later. This is in addition to losing power on a number of others
> > times when I am just driving "normal." In any case, both times when I
> > got a code they were misfires, once in cylinder one, the other a random
> > misfire. Today I have removed the gas cap thinking maybe there is some
> > kind of clog, etc..in the Evaporative Emissions Control system. Seems
> > to be a little better but it is hard to tell since the problem is so
> > intermittent.
> >
> > I have not tied to connect anything to the ECM yet. Can you tell me
> > more about it? I will also check it out online.
> >
> > Thanks a lot. I appreciate your help.
> >
> > Andrea
> >
> >
> >
> >
> > One out of many Daves wrote:
> >> Which engine in this 99 Golf? Sounds like a 2.0, but am not sure even if
> >> this is a US model or what. I would ASSuME that since it is comcast that
> >> it
> >> is a US model. ;-)
> >>
> >> How many fuel pumps does your 99 Golf have? 2?
> >> I would suspect a problem with the transfer pump in the fuel tank, if so
> >> equipped.
> >>
> >> Possibly a ruptured Fuel Pressure Regulator that might allow gas to
> >> travel
> >> through vacuum hoses into the intake.
> >>
> >> also did you ever get an Engine Check Light?
> >> Have you tried to hook up a ross-tech.com vag-com tool to the ECM to see
> >> what was happening?
> >> --
> >> later,
> >> dave
> >> (One out of many daves)
> >>
> >> "andrea" > wrote in message
> >> ups.com...
> >> >I have a 99 vw gasolined powered gof that has an intermittent misfire,
> >> > hesitaition, loss of power problem. It has pretty much always misfired
> >> > but my main concern is the new (past 6 months) hesitiation/loss of
> >> > power. It will completely die unexpectedly and then after a few
> >> > seconds to a few minutes, it will restart. You can floor it and the
> >> > tach barely moves and then it may suddenly grab and you're off! The
> >> > problem is beginning to get much worse. Here is a list of what has
> >> > already been done:
> >> >
> >> > New:
> >> > MAS
> >> > Gas Filter
> >> > Catalytic convertor
> >> > throttle plate
> >> > wires, plugs, cap, rotor
> >> > coil
> >> >
> >> > The vacuum lines, fuel pump pressure, and regulator have all checked
> >> > out alright. The gas tank was drained and is clean. The fuel injector
> >> > lines have been cleaned twice.
> >> > I wanted to change relay 109 untl I realized that that was only for
> >> > diesels (I think)
> >> > and now want to change the relay for the fuel pump (#409) but I don't
> >> > know where it's located (it's not in the panel)
> >> > Most of the time the problem happens when the gas level is below half a
> >> > tank and it will even repeatedly hesitiate going up a steep hill when
> >> > it's below half a tank but not when full.
> >> >
> >> > Any thoughts/suggestions...if yousolve it I will take you out to
> >> > dinner...as long as you're not a jerk!!!!! Thanks. Andrea
> >> >
> >