At  11/2/2008 07:49 PM, Michael Hart wrote:
>Just got back from a trip to the mountains in my '87 Westy, on the
>back of a AAA transporter.... The trip up yesterday went perfectly.
>Coming back down California Highway 4 today, after driving 40 miles,
>the engine just lost power and died about 30s later. It would start
>up again after a minute or two rest, run for perhaps a minute and
>then loose power again, run very rough & die. My attempts to
>diagnose the problem failed me (hence the AAA transporter); - Tried
>changing the ecu (I had a spare) - exactly the same. Waited for 15
>minutes for engine to cool down and tried again; exactly the same.
>Took a plug out - nice and clean. Engine compartment was dry and
>electrical leads & coil seemed fine (although it had been raining).
>Couldn't hear if the fuel pump was runing (too noisy alongside the
>highway). Now the van is in my driveway, I'm planning my campaign to
>find the problem. My first thought is this is a fuel starvation
>problem, so I will check/replace the fuel filter and fuel pump (&
>check there is no obstruction at the gas tank). Do you think I'm on
>the right track or do you have better suggestions? Thanks, Mike '87
>Westy SF Bay Area

I'd put a shot of starter fluid in it and give it a try. If it runs
for a moment then dies I'd treat it as a fuel problem, if not I'd
start at the ing end.

Rob
becida@comcast.net