Hello all, I have had a hot start problem for a little while now. The car starts okay when cold, although sometimes it takes 4 or 5 seconds, or even cranking it a second time. If it's been sitting for anywhere from around 20 minutes to an hour and a half after running, I usually have to crank it a few times, wait a minute or two, and crank it about 5 more times for it to start. I got my hands on a pressure tester today, although I'm not sure if I used it correctly. The workshop manual said when using a pressure tester it would be necessary to jump the rpm relay and run the fuel pump without the motor running. The instructions for the tester said to do it with the engine running, so I connected the top port of the fuel distributor and the corresponding hole in the CPR, and did it with the engine running. If that's wrong someone let me know the right way please. Anyway, my results were primary pressure 4.8 bar (book says 4.9-5.5). Control pressure went from about 2.1 bar to 3.4 bar within about 15 seconds, and stayed at 3.4 bar thereafter. Checking rest pressure, upon shutting down the engine the pressure dropped immediately to 3 bar, then hit 2.7 bar after 30 seconds, 2.5 bar after 1 minute, 2.2 bar in 1 minute 40 seconds, and then once it hit 2.2 bar it dropped drastically to 0 within 10 seconds. I believe the book said it should be a minimum of 1.7 bar after 10 minutes. However even with the gauge reading 0 bar it still starts immediately within about 10 minutes of having run (regardless of engine ambient temperature). Did I do the test incorrectly? And if not, does a primary pressure of 4.8 bar mean my fuel pump is not performing like it should? About the car: I've had the car for 2 years, the fuel pump is the same one that was in it when I bought the car, but is not the original. I recently replaced the filter on the fuel pump and the fuel filter. The fuel accumulator is the same one that was on the car when I bought it, I think the PO had said it had been recently replaced but I can't tell by looking at it if that is true or if it is still the original. I recently replaced the o-rings on the primary pressure valve plunger thing in the fuel distributor. Where should I go from here? Any methods of better pinpointing where the rest pressure loss is coming from (I would guess between the accumulator or the check valve at the pump). Thanks for any and all help, Dave #5968 To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnews Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dmcnews/ <*> To unsubscribe from this group, send an email to: dmcnews-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/