[W126 Coupe] starts and cuts out

[560secfl]

Sorry should have said the pumps are working but car still stalling 

 

From: kelly frink [mailto:560secfl at gmail.com] 
Sent: Friday, January 15, 2010 4:29 PM
To: Mercedes Coupes Mailing Lists
Subject: Re: [W126 Coupe] starts and cuts out

 

I did what you said but same thing stall`s out after 2,3 or 4 sec. so it`s
not the relay.  would it start at all if th FD was not put in right again it
ran for two weeks or maybe just a wiring problem 

 

 On Thu, Jan 14, 2010 at 9:21 PM, Markus Meyer <markusfmeyer at gmail.com>
wrote:

It sits between the two firewalls.  There are usually 3 relays next to each
other - klima, fuel pump relay, and ovp.  OVP is more obvious as its usually
silver with red top and one or two fuses inside the clear cap.  The other
two look the same, about the size of a pack of cards or cigarette pack.  The
fuel pump relay usually says FPR on it, the climate control says KLIMA on
it.  Pull the fuel pump relay out of its socket.  There are a bunch of holes
in the socket where the relay plugged into.  You want to take a piece of
wire, 12 gauge or so, about 8-12 inches long, exposed on both ends.  Stick
one end into the hole marked #6, the other in the hole marked #7 (I think I
have the right numbers, they are in opposite rows, its either 6/7 or 7/8).
You should now hear the fuel pumps buzzing/humming, pumping fuel.  If not,
you have a problem at the pumps.  If the pumps work, try starting the car
and see what happens.  If it runs, try driving a little.  If fine, the relay
is bad.

 

Markus

On Thu, Jan 14, 2010 at 8:58 PM, 560secfl <560secfl at gmail.com> wrote:

Markus can you tell me were that is and how to check it

Thanks

 

From: mbcoupes-bounces at mbcoupes.com [mailto:mbcoupes-bounces at mbcoupes.com]
On Behalf Of Markus Meyer
Sent: Thursday, January 14, 2010 8:57 PM
To: Mercedes Coupes Mailing Lists
Subject: Re: [W126 Coupe] starts and cuts out

 

Check the fuel pump relay.

On Thu, Jan 14, 2010 at 8:11 PM, kelly frink <560secfl at gmail.com> wrote:



Hi all

 

I drive my 1988 560sec to my office today and parked and when I went to
leave it started and then stalled and would not start again.  it starts but
only runs for maybe 3 or 4 sec and cuts out.  any ideas 

 

thanks

 

the good news is it will look like I have been at my office all night
working


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