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Originally Posted by LVCamaro
...notice they qualified for Handicap Parking spot too 
Scott just called from Nashville and said everything is good after a 10 pound bag of ice each morning. Charley had the same problem last year with the SAME fuel pump 
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Can I guess... is it brand "A"? Are you using the PWM step-down box for low throttle/cruise to cut down on the fuel flow (and therefore heating)?
When was it acting up on them... during sustained higher speed cruising, or during extended "putt-putt" sessions in slow/creeping traffic?
The problem is frustrating, but it's great to see they came up with a quick and dirty workaround so they can drive the car between stops, rather than tow it. The problem is definately correctable. A rather simple way to cure it is an air-to-fuel cooler in front of the car, plumbed into the return line after the pressure regulator. I haven't had a vapor lock problem on my car yet, even in around-town traffic in the heat on a low tank, but should the problem ever occur a cooler on the return line will be my first step towards correcting it.
I know Mercedes years ago used to wrap the return fuel line around the low side A/C line after the evaporator for exactly this reason. Worked great... as long as you ran the A/C in hot weather.