What could be wrong with my fuel set-up?
Thread Starter
Teching In
Joined: Feb 2009
Posts: 10
Likes: 0
What could be wrong with my fuel set-up? I just don't understand what could be wrong here, it seems I am doing the same as others with different results.
It's a Jeep Cherokee with a 2005 5.3L and LS1 intake.
Starting in the tank I removed the Jeep pump from the pump/sending unit assembly and entended a piece of steel line to about 1/2" off the floor of the tank. From there it goes to a E2000 pump and into a GF822 filter/regulator. Out to the fuel rail on the one side and back to the tank on the other.
Sounds the same as everyone else, right?
In the 3,000 miles I have put on the Jeep since the swap I have gone through four fuel pumps because they stop feding the required presure (fourth is dropping pressure to ~40 now when throttle opens) and swapped the filter/regulator once to be sure that was OK.
Fuel pumps used:
Ebay E2000 (China, should've expected bad results here)
Airtex E2000 (Advance Auto E2000) X2
Bosch E2000 (Advance 69100)
What could be wrong? I see lots of other people use this set-up without issues and I have a friend using this set-up for a LS1 in his Cherokee. 11,000 miles on his and no issues at all. FWIW the inside of my tank is clean, no gunk that could be sucked up.
Thanks
It's a Jeep Cherokee with a 2005 5.3L and LS1 intake.
Starting in the tank I removed the Jeep pump from the pump/sending unit assembly and entended a piece of steel line to about 1/2" off the floor of the tank. From there it goes to a E2000 pump and into a GF822 filter/regulator. Out to the fuel rail on the one side and back to the tank on the other.
Sounds the same as everyone else, right?
In the 3,000 miles I have put on the Jeep since the swap I have gone through four fuel pumps because they stop feding the required presure (fourth is dropping pressure to ~40 now when throttle opens) and swapped the filter/regulator once to be sure that was OK.
Fuel pumps used:
Ebay E2000 (China, should've expected bad results here)
Airtex E2000 (Advance Auto E2000) X2
Bosch E2000 (Advance 69100)
What could be wrong? I see lots of other people use this set-up without issues and I have a friend using this set-up for a LS1 in his Cherokee. 11,000 miles on his and no issues at all. FWIW the inside of my tank is clean, no gunk that could be sucked up.
Thanks
Last edited by John D; Jan 24, 2011 at 06:15 AM.
Without a.. Do the pumps get noisy before they go **** up?
Thread Starter
Teching In
Joined: Feb 2009
Posts: 10
Likes: 0
Trending Topics
Launching!
Joined: Sep 2009
Posts: 250
Likes: 3
You might also look into another pump.
The e2000 pump has as many horror stories as good. I've heard flow issues in addition to quick deaths.
On my LQ4, I used the e8248. Same size as the e2000 but no issues I have read about.
The e2000 pump has as many horror stories as good. I've heard flow issues in addition to quick deaths.
On my LQ4, I used the e8248. Same size as the e2000 but no issues I have read about.
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine
Verdad Gallardo
7 Most Reliable High-Performance Engines GM Has Ever Built
Verdad Gallardo
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin
Verdad Gallardo
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo Thread Starter
Teching In
Joined: Feb 2009
Posts: 10
Likes: 0
I am going to get an E8248, then keep the E2000 as a trail spare. Thanks
Launching!
Joined: Sep 2009
Posts: 250
Likes: 3
The E8248 runs my LQ4 well.I bought the E2000 and then read so many issues about it I got the E8248 installed.
Thread Starter
Teching In
Joined: Feb 2009
Posts: 10
Likes: 0
Problem seems to be remedied; for now.
Reconfigured the set-up to the way I had originally intended.
Prefilter/pump/filter-regulator/return to tank (tapped in) and supply to engine.
Running the Bosch e2000 pump and it's very loud even new. I will be ordering a e8248. Found them on Amazon for $94 - anywhere cheaper?
http://www.amazon.com/Airtex-E8248-E...6129004&sr=1-1
Reconfigured the set-up to the way I had originally intended.
Prefilter/pump/filter-regulator/return to tank (tapped in) and supply to engine.
Running the Bosch e2000 pump and it's very loud even new. I will be ordering a e8248. Found them on Amazon for $94 - anywhere cheaper?
http://www.amazon.com/Airtex-E8248-E...6129004&sr=1-1
