Replacing the Fuel Pump and Fuel Tank Sending Unit - 2006 Scion tC

In this video I documented my experience with replacing a cheap counterfeit DENSO fuel pump I got off eBay with a new genuine Bosch pump. I also replaced the fuel tank sending unit which senses the fuel level in the tank.
Just so you know, make sure you have a genuine DENSO or Bosch (or similar quality) pump. I got a cheap one off eBay which turned out to be a counterfeit.
Make sure you double verify the manufacturer before getting one. I think you should spring for OEM on this part because there are some really poor quality ones out there and you don't want to have one fail on you while you're driving.
Tools required:
- Flat head screwdriver
- Phillips head screwdriver
- 8mm socket & wrench (optional)
- 4mm socket
- Needle nose pliers
- Rags
You may need to cut and crimp on some electrical wires depending on your fuel pump model. Check and see what kind of hardware came with your pump.
** IMPORTANT ** I made the mistake in the video of not following the depressurization procedure in the fuel line. It's important that you do so as not to spill fuel everywhere.
The manual says to disconnect the fuel pump electrical connection and then turn on the car. Let the motor run for a few seconds and then it will die on its own. Your fuel line should then be depressurized.

[@daltondenmark1018]

that yellow clip at the end of the video is the retainer clip. my buddy forgot to put it back on. so a week later i’m at my buddy’s eating in his driveway and my car shut off and was gushing gas from under the vehicle when i would try to crank her up. it’s a long story but i had my buddy’s find the clip under my back seats 😂

[@gillymotive]

Oh man disaster! Every little piece has been engineered for a good reason. The sooner we all learn that the better 🤣

[@louieyaya5951]

Great video 🎉,I have a 06 tc w 200k already,giving me problems starting sometimes. Replaced starter,alt,spark,fuses ignition. I noticed I don’t hear the pump sound anymore lol maybe the pump n filter ? Thank you

[@melissagilleard6800]

Nice video!

[@gillymotive]

Thanks! Not the greatest production quality but hopefully it helps people in this situation.

[@tunezsky0x3]

Great video

[@gillymotive]

Thanks!

[@tunezsky0x3]

​@@gillymotivewhat is that other little metal plug thing, fuel pressure regulator?

[@tunezsky0x3]

​@@gillymotiveon the bottom

[@GillyTech]

@@tunezsky0x3 You're right that is the fuel pressure regulator.

[@Jonnib0i]

Great video! My car cranks and shakes but doesn’t turn. Within the last two years I had spark plugs, alternator, battery, and engine filter changed so going to change the fuel pump. I also got a Desno fuel pump but from Rockauto. Where did you get yours? Also, would I have to do the same thing you did with the wires? Hoping I don’t, seems a bit complicated

[@gillymotive]

Hey yeah wouldn’t hurt to change the filter too if you haven’t yet. A denso from RA will be legit. I got mine off eBay thinking I’d never get scammed lol. Youre not going to need to mess with the wires since DENSO is the OEM part for this model.

[@kawikab808]

Awesome thanks

[@10toestjay]

for the life of me can’t find the part name for the plastic piece on the end of the fuel pump with the o ring around it

[@markalbin5326]

Nice video. What symptoms where you having to believe the fuel pump was bad. I have a 06 tc that is hard to start cold, but afterwards it starts fine. I’m at 175k miles and wonder if my pump is going out?

[@gillymotive]

Thanks Mark, you win the first comment award! The other one is my sister haha. Originally replaced the pump because I needed to replace the filter (150k mile maintenance) and figured I don't want the pump going out on me while driving. Symptoms were overall slight sluggishness compared with 100k miles. I wouldn't say starting was particularly difficult. The crappy counterfeit DENSO I put in there was worse. Definitely less punch and had to press the accelerator harder to get decent power. It was also making slurping noises at 1/4 tank which was really concerning. After installing the new Bosch the power was back to normal and maybe even a bit better. I hear the pumps die suddenly when they go. Also you can tell going up hills you need to give it more juice. The fuel filter could be clogged (depending on a bunch of factors). I'd say at 175k miles I would at least spring for a decent filter and try replacing it. I got a Beck/Arnley 043-3000 for about $35 off Amazon. You could try Rock Auto too. Good luck!

[@imando7464]

I’m having the same issues now too haha I think it’s the fuel pump 😊

[@gillymotive]

@@imando7464 I hope you figure it out! It's relatively cheap to replace so may as well see if that's what it is. They are supposed to be replaced at 150k miles for sure. Did you find the video helpful?

[@2SlowTC]

how do you remove the move part at the bottom of the fuel filter housing

[@Jestikk]

Good video. I assume this would be the same for a 2005?

[@gillymotive]

It should

[@dmoney9964]

Is a 2012 Scion tC the same ?

[@eleazaralvarez1472]

hey i have a short question how did u do the wireing?

[@eleazaralvarez1472]

Or do u still have the extra wire harness that came on the new one?

[@gillymotive]

Yeah good question. With the junk pump I originally got I had to cut the plug from the top of the housing and crimp on the wires of the new plug. I made sure not to cross polarities by plugging in the new pump and keeping the wires on the right sides relative to the existing wires. It’s holds up perfectly fine. I used red crimp size. In the end I do still have the wire harness that came with the new one, didn’t need to use it.

[@eleazaralvarez1472]

@@gillymotive oh i did the same thing justcut the wires from the old pump and connected them to the new pump i was just wondering about the connecting the wires correctly by the colors but looked at ur wireing on the video and i put them the same way u did, too bad i cut them too if not i would of asked u if u sell me the adapter for the cables.

[@eleazaralvarez1472]

i just tried to start my car but its having the same problem what could it be? could it be a problem on the fuse box? i need to put a code scanner and see what i get

[@gillymotive]

Lot of things could be wrong. What is the exact set of symptoms? Does it crank, click or not make any noise at all? Do the lights come on, do the windshield wipers work? If it does crank, is it fast or slow?

[@jonathanlopez-hernandez7883]

Does having a full tank matter?

[@gillymotive]

Should not be a problem, just make sure you’re parked on a level surface. I tried to do it when the tank was a bit lower as it would lessen the chance of spillage. If it’s topped off the extra gas in the spout might be enough to cause overflow at the pump hole.