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hard starting


Model: Boxster, Year:2000, Mileage:128K, Type of use:Street use only
Back in late September my beloved 2000 Boxster began an annoying habit.It would not start.It would turn over but not start.The first time it happened it was a warm day and my first thought was vapor lockbut I think that is a thing of the past.There seems to be no rhyme or reason to when it are the attempts at curing the problem.1. fuel pressure and and capacity tested ok2. changed fuel pump relay, one other relay and replacedfuel filter3. had battery checked after charging all night, all cells were OK and alternatorwas OK ( tests done by an Interstate battery store)4. replaced battery with a new Interstate batteryThe guys at the battery store said "short trips" were the reason and that it takes10 to 20 minutes of engine time to recover from the drain of a start.Jump starting is not proven to help i.e. it still takes a long time to start the engine.Just letting the car sit for 5 to 50 minutes and it will start.Always starts in the morning.Outside air temp has been from near 100 to low 40's/high 20'sClimate sunny and dry to cold, wet, cloudy, rainy.I have a battery tender to maintain the battery when the car sits for a while.

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