First of all, just wanted to say thank you to everyone who's contributed to the great content on here. I've been a lurker for years, but haven't needed to post until now.
I'm the proud owner of a 2007 LC with ~263k miles. Today, I decided to proactively replace the fuel pump with the Denso 950-0210 kit. No issues removing the old one, and both pumps were identical. I dropped the new one into the plastic cage, connected the small power plug that goes directly into the pump, connected the rubber hose, and put the entire assembly back into the tank (making sure to position it so that the sender float moves freely). I then connected the main larger power plug and two fuel lines at the top.
I reconnected the negative battery terminal and attempted to start it--the first red flag was that I couldn't hear the new pump priming. Tried cranking 5-6 times, but it wouldn't start. I used my OBD2 reader and there were no codes.
Some info that might be helpful:
- Immediately after the starter stops trying to crank, there's a buzzing sound for 1-2 seconds (I believe this is the fuel pump--so good to know that it's not entirely dead/faulty).
- During removal of the old pump, I did the following to remove pressure from the lines: Unplug the main electrical connection at the top of the pump and attempt to start the engine several times until it no longer gets fuel. Didn't touch any fuses, relays, etc. (I suspect this was not the right way to do it...)
- Had to reuse the old fuel pump filter sock since my new one didn't fit
- Did not use the small O-ring that came with the new Denso pump because there was no O-ring on the old setup. I've heard that this part is important, but don't see why its absence would cause my new pump to act like it's not getting power.
- Just put my battery on the tender to make sure everything's getting full power
What have I done, folks?
I'm the proud owner of a 2007 LC with ~263k miles. Today, I decided to proactively replace the fuel pump with the Denso 950-0210 kit. No issues removing the old one, and both pumps were identical. I dropped the new one into the plastic cage, connected the small power plug that goes directly into the pump, connected the rubber hose, and put the entire assembly back into the tank (making sure to position it so that the sender float moves freely). I then connected the main larger power plug and two fuel lines at the top.
I reconnected the negative battery terminal and attempted to start it--the first red flag was that I couldn't hear the new pump priming. Tried cranking 5-6 times, but it wouldn't start. I used my OBD2 reader and there were no codes.
Some info that might be helpful:
- Immediately after the starter stops trying to crank, there's a buzzing sound for 1-2 seconds (I believe this is the fuel pump--so good to know that it's not entirely dead/faulty).
- During removal of the old pump, I did the following to remove pressure from the lines: Unplug the main electrical connection at the top of the pump and attempt to start the engine several times until it no longer gets fuel. Didn't touch any fuses, relays, etc. (I suspect this was not the right way to do it...)
- Had to reuse the old fuel pump filter sock since my new one didn't fit
- Did not use the small O-ring that came with the new Denso pump because there was no O-ring on the old setup. I've heard that this part is important, but don't see why its absence would cause my new pump to act like it's not getting power.
- Just put my battery on the tender to make sure everything's getting full power
What have I done, folks?
