The cars I've had with electric fuel pumps they run for a couple seconds when
the key comes on and then shut off until the car is started.
Which reminds me I need to change the fuel filter on my Jetta. Put in the new
filter, turn on the key, wait while the pump cycles, repeat a couple times
until the filter is full, then start the car. I haven't tried it yet on the
Jetta but I used that technique on Angie's Golf, worked a treat.
Sometimes when I can't hear something like a fuel pump I'll grab onto it,
usually I can feel if its running even when I can't hear it.
-Curt
On Monday, January 27, 2020, 9:57:06 AM EST, Meade Dillon
<dillonm...@gmail.com> wrote:
Well I bought some starter fluid, and then immediately tried it and
the car started right up and stayed running. I wish I had tried to
start without using the starter fluid to make sure it was still a
"no-start" condition.
Once started, the CE light was no longer lit. I put on my code reader
at the diagnostic plug, got a few codes at pins 8 and 14, mostly
errors in communications between various gasser modules which are
mysterious to me. Cleared all the codes. Shut down the car, and it
immediately re-started no issues, no CE light.
Waited a bit, and then it would not start. Tried to listen for the
fuel pump, could not hear anything when the ignition was turned on
(should the pump run all the time when the ignition is turned on, or
does it run for just a bit to build pressure, or does it wait to run
until the starter is cranking?).
I tapped on the relay for the fuel pump, made no difference. Gave it
another shot of go juice, and it started with difficulty, actually it
took two shots of go juice.
Got down next to the car at the fuel pump, I think I could hear it
running, also observed a drip of fuel, so need to pull off that cover
and see what's leaking.
Max Dillon
Charleston SC
Jan 26, 2020 7:36:11 PM Curt Raymond via Mercedes <mercedes@okiebenz.com>:
> Inline spark tester is a beautiful thing. I don't remember what I paid for
> mine but it's absolutely worth it.
> Curt
>
> Sent from Yahoo Mail on Android
>
> On Sun, Jan 26, 2020 at 6:57 PM, Craig via Mercedes<mercedes@okiebenz.com>
> wrote: On Sun, 26 Jan 2020 21:59:20 +0000 (UTC) Max Dillon via Mercedes
> <mercedes@okiebenz.com> wrote:
>
>
> >
> > Thanks Curt, that's a simple test. I don't have any starter fluid, have
> > to buy some.
> >
>
> Yes, you may use starting fluid on a gasoline engine ...
>
> I was going to suggest testing for spark as well -- it used to be easy to
> do, just remove a plug wire, put a screwdriver in the boot so it contacts
> the metal contact and hold it near some metal.
>
> With the high-energy system those cars have, however, I am not entirely
> sure that is how to do it.
>
>
> Craig
>
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