Re: '84 5000

[steveb@falcon.kla-tencor.com (Steven Buchholz)]

> One that the mechanic can't seem to figure out is a warm start problem. 
> When ever the engine is warm from use and has only been shut down for
> about 5-15 minutes, like going into the bank, the car is then very hard
> to start!  There are no problems starting it on cold days or even after
> sitting all day in the sun, but just after recent use does it have
> problems starting back up.
> 
I would suspect one of three things ... but the first thing to do is to 
do a residual pressure test on the fuel system.  You will probably find
the residual pressure to be below spec.  The three things I can think of
that might cause this are: 1) leaking fuel injectors, 2) bad check valve 
in the fuel pump, and 3) fuel pressure accumulator stuck.  I guess some
cars have a metering valve to return fuel to the tank ... that might do 
it as well.  Bentley has a good procedure for nailing this down ...

HTH!
Steven.Buchholz@kla-tencor.com
San Jose, CA (USA)