[DML] Re: hot outside, no start discussion

["David Teitelbaum" <jtrealty@xxxxxxxxxxx>]

Make sure the fuel pump is running when you are heat-soaked. Take the
fuel cap off to relieve any vacuum or pressure. You may have to get a
pressure gauge on the fuel system to see what is going on and measure
the "rest pressure" to test the check valve, accumulater, and pressure
regulator. Does it happen with a full tank of gas or when the level is
low? There could be a flow problem in the tank, like a kinked,
collaped pick-up hose or a dirty filter. This is a little unusual so
you have to look at different things. You could also have a problem
with one of the starting systems like the bypass relay for the
ignition resistors or maybe the wiring in the cold start valve
circuit. Vacuum leaks could also be part of the problem. Check out the
vacuum valve on the water pipe and it's connections to the vapor
cannister and the vacuum advance.
David Teitelbaum
vin 10757




> 
> Hmm... interesting. The only trouble I ever have starting is if it is
> sun-soaked for a couple of hours. And doing the cable switch, AKA
> hot-start quick-fix, does the trick.
> 
> So I should be checking the check valve on the fuel pump or primary
> pressure regulator next. What about the TTS (thermo time switch)? I
> suppose I should patch into it and see what it is telling the system
> cold, vs. running hot, vs. sun-soaked hot.
> 
>






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