You are right, the accumulator has 2 functions. One is to maintain "Rest Pressure" so the motor will start when warm-hot without the cold start system. The other function is to reduce the pulsations from the fuel pump. It does affect idle quality when the accumulator is bad and is noticeable. Wear eye protection and gloves and keep your mouth closed (Ha Ha). Use proper fitting wrenches, hold back and DO NOT allow the metal pipes to twist. You may have to replace the short rubber line if it is in bad condition. If your accumulator is throwing chunks of diaphram (little black pieces of rubber), you will see them if after removing it and you shake it they will come out, then drive the car for a while and replace the fuel filter. The filter will fill with those chunks so it should be replaced too, just not at the same time to give all the chunks time to get in there. David Teitelbaum vin 10757 --- In dmcnews@xxxxxxxxxxxxxxx, "sweetp01569" <paul.sweet@...> wrote: > > Other than helping maintain the fuel pressure for hot starts, does the > fuel accumulator also aid while the car is running? The reason I ask > is that I'll notice the car running very smoothly at times (purring > in fact), then at other times, a little rough idling. I am changing > my accumulator in a week or two to hopefully solve my hot start > problem. Does it also help the run smoothly while in operation? > > Thanks, > > Paul > vin 10944 > 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/