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Previous Thread Next Thread Print Thread Rate Thread Vent Line #562435 02/03/05 02:24 PM Joined: Jan 2005 Posts: 19 M mph9111 OP Need a Spot Greetings, I want to replace the old mech pump with an electric model. ('92, 2.3L, everything original) Can I simply leave the return fuel line off at the old mechanical fuel pump to allow the system to "vent" and not create a vacuum? Leave the return line on the old pump which will be disabled? (removed the push rod between cam and pump) Thanks, mph9111 Re: Vent Line [Re: mph9111] #562436 02/04/05 01:27 AM Joined: Aug 1999 Posts: 9,030 Fair Oaks, CA USA randii 4x4Wire.com Managing Editor Emeritus I don't know the 2.3 very well, but just generally, deadheading an electric fuel pump isn't a great idea... it is hard on the pump. I presume you're going to disable the old fuel pump (pull the drive rod?), and pump through the stock fuel pressure regulator. If that's the case, there's no need to disconnect the old return line -- just let the fuel pressure regulator divert any 'extra' unneeded fuel through the return back to the fuel tank. Randii Re: Vent Line [Re: randii] #562437 02/07/05 11:38 PM Joined: Jan 2005 Posts: 19 M mph9111 OP Need a Spot Randii, OK that sounds good. Just run it through the fuel press regulator and let it go correct? The new pump is supposed to be in the 7 to 9 psi range. Thanks, mph9111 Re: Vent Line [Re: mph9111] #562438 02/08/05 06:34 AM Joined: Aug 1999 Posts: 9,030 Fair Oaks, CA USA randii 4x4Wire.com Managing Editor Emeritus That should work, but the best way to know for sure would be to use a pressure guage to make sure you're not over- or under-pressurizing the system. Randii Randy Burleson 4x4Wire Managing Editor Emeritus Mongrel Isuzu Amigo Moderated by  4x4Wire, houlster, jezeric, Jim_Paget, strawmyers  Hop To Mitsubishi Forums ------  Mitsubishi 4x4 and SUV Tech  Mitsubishi Diesels  Mitsubishi ArchiveToyota Forums ------  Early Toyota Trucks  Toyota 4Runner, FJ Cruiser &...  T100 & Tundra Forum  Tacoma Forum  Toyota Tech ArchiveJeep Forums ------  Jeep Talk  Jeep TechIsuzu Forums ------  Isuzu 4x4 & SUV Talk  Isuzu 4x4 & SUV Tech  Isuzu DieselsKia Forums ------  Kia Talk  Kia Sportage & Sorento TechOff Topic Chat ------  4x4 Gallery  Off-Topic Chat  Recreational Access & Land ...  Politics4xForums ------  Outdoor Gear  General 4x4 Discussion  Tools and Fabrication  General Communications  Amateur Radio  GPS and MapsParts Bin ------  Private Party - Garage Sale  Private Party - Items wanted  Vendors, Hot Deals, Group Buys4x4Wire Back Yard ------  Suzuki Forum  AZ Crawler Crew  Cal-Nev Crew  General Ford 4x4 & SUV Forum  General Dodge 4x4 & SUV Forum  General Chevy 4x4 & SUV ForumFeedback & Testing ------  Problems, Questions, Suggestions4x4Wire Staff ------  Forum Moderators  Problem Threads Print Thread Switch to Threaded Mode 5 Excellent 4 Good 3 Average 2 Bad 1 Terrible View Profile Private Message Follow User Forum Posts View Profile Private Message Follow User Forum Posts View Profile Private Message Follow User Forum Posts View Profile Private Message Follow User Forum Posts

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