Re: [Chrysler300] 300H Fuel problem - answer

[G Barker <gbarker@xxxx>]

You can also get a kock if the spring on the pump is getting weak. Gary Barker

elmer tuuri wrote:

> Does a worn pushrod make noise [knock]? We diagnosed with a stethescope a
> noise coming from
> fuel pump-- no noticeable loss of power. I had a 55 ford once [in late 50's]
> Seemed to be same
> problem-- changed pump- noise gone. Ordered new pump. Should check pushrod
> too I guess
> 78 NY -400
> Elmer Tuuri
>
> >From: John Hertog <crossram@xxxx>
> >To: Doug Warrener <dwarrener@xxxx>, Chrysler300@xxxxxxxxxxxxxxx
> >Subject: [Chrysler300] 300H Fuel problem - answer
> >Date: Mon, 19 May 2003 16:21:11 -0400
> >
> >To all, re fuel pump problems:
> >
> >It is not tremendously hard to hook up a fuel pressure gauge, temporarily,
> >in-line, and drive the car while observing the gauge. Loss of pressure at
> >higher RPM's under load will certainly pinpoint the problem to a fuel
> >starvation issue, and save lots of diagnostics time. Other starvation
> >causes
> >can be a clogged fuel sock in the tank pickup, as well as rusty lines, or
> >(let's not overlook the obvious) a clogged filter ! Blowing some compressed
> >air back into the fuel line BEFORE the fuel pump (WITH GAS CAP OFF!!!)
> >should eliminate blockages and unclog the sock to some degree. Don't go
> >nuts with the air pressure !
> >
> >While not "original", an electric fuel pump is a wonderful addition to any
> >car.. I have one in my 300G convert, and it makes starting the car a snap,
> >especially after it has been sitting for weeks or months. It probably saves
> >a lot of wear and tear on starter, and other components. The car does not
> >have a regular fuel pump; it does have an in-line fuel pressure regulator,
> >though !
> >
> >Summit Racing's Fuel Pressure regulator, or some similar item, should be
> >used with any electric fuel pump. There are many different types,
> >adjustable
> >from 3 psi to 12 psi. Cost is as low as $34 bucks. Check out Summit's #
> >SUM-G3131 at
> >
> >http://store.summitracing.com/default.asp?target=search.asp&type=bysummitpar
> >t&searchtype=both&part=SUM-G3131
> >
> >With regards to Mark's problem - when there is a will, there is a way, you
> >should be able to get that sucker out, even if it is somewhat mushroomed,
> >and even though the clearances are relatively close where the rod goes
> >through the block. It certainly is an indication that something is wrong
> >in
> >that the rod refuses to come out !
> >
> >John Hertog
> >Sag Harbor NY
> >
>
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