Change all the hoses including at the tank. check the primer pump.
If it leaks when pumping, or does not pump, replace it.
An easy test is: in the condition when you "know" it won't start
right, use the primer pump to bring up fuel to the IP. If it is a
quiet location, you can hear the relief valve on the backside of the
pump making a slight noise when fuel is exiting. The pump should
have more resistance also when fuel is up all the way. then jump in
and start the car. If that helps, then you know it is the hoses and
clamps.
the cloth wrapped hoses will leak air in without leaking fuel out.
Steel lines will do the same. IF changing hoses does not fix it,
then inspect the steel lines, especially under clamps for rust scale.
You may need to cut out and replace a section, or replace the entire
length. On my old SDL, the steel line rusted through up under the
tank where it was nearly impossible to get to (or find). On my first
diesel, it rusted under the body just behind the driver door under a
clamp where it was hidden.
Recap:
1. Use primer pump to see if that corrects the problem. If so,
replace hoses, if pump does not work correctly, replace pump and
hoses.
2. If pump and hoses does not correct the problem, check steel lines
and replace as necessary.
1984 300D 290,000 miles and running strong.
Car starts very hard, sometimes not at all when I try to restart
after driving long enough to get to full operating temperature. If
I restart within a few minutes it starts right up. If I wait for 2
to hours it starts right up. If I try to start up within an hour or
two it will not start. To get it to start I have to loosen injector
lines and crank or manual pump until I get fuel to the injectors.
During the winter here in Michigan I had no problem whatsoever. As
soon as we hit 70 degrees plus it started acting up again. Is this
a problem with the injector pump or do I have holey hose somewhere
in the system?
Thanks,
Mike
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_______________________________________
http://www.okiebenz.com
For new and used parts go to www.okiebenz.com
To search list archives http://www.okiebenz.com/archive/
To Unsubscribe or change delivery options go to:
http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
