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Loud fuel pump

Tiny
JBWYATT
  • MEMBER
  • 2001 TOYOTA TACOMA
  • 2.7L
  • 4 CYL
  • 2WD
  • MANUAL
  • 250,000 MILES
Do I need to replace fuel pump?
Saturday, September 22nd, 2018 AT 8:45 PM

16 Replies

Tiny
HARRY P
  • MECHANIC
  • 2,293 POSTS
If the pump is getting loud, then it is probably nearing the end of its life. It may last another year, another decade, or just another ten minutes. I would suggest at least that you go ahead and get another pump ordered. You can save quite a bit of money ordering from Amazon or RockAuto, but you will want to do it before you actually have to have the pump.
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Sunday, September 23rd, 2018 AT 5:34 AM
Tiny
JBWYATT
  • MEMBER
  • 8 POSTS
Yeah you right!
My setup is: stock fuel pump in to a surge tank then surge tank to fuel rail using an inline fuel pump 044 Borsch. Yesterday I replace 044 with a new one and the stock one is unable to keep up as far as pressure goes with the 044 even with two. Lts surge tank. So today I am shopping for an in-tank high pressure fuel pump able to keep surge tank and 044 happy. I will keep you updated with progresses as they unfold.
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Sunday, September 23rd, 2018 AT 9:33 PM
Tiny
HARRY P
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  • 2,293 POSTS
Wow, sounds like quite a rig you have got going. Definitely do keep me posted on it.
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Monday, September 24th, 2018 AT 8:52 PM
Tiny
JBWYATT
  • MEMBER
  • 8 POSTS
Genuine Toyota fuel pump is $650.00 from dealer.
I purchased a stock in-tank fuel pump from local shop. Apparently they been used on the V8 so they strong enough to feed the 044. I took car to my local mechanic and he got the fuel tank out in ten minutes. And he went to test it and he was like pump works. So I told him yes pump works but after twenty to thirty minute drive the inline starts to be loud. Since is a brand new I am 100% sure that was not the problem. So I told him to get a new in-tank fuel pump and to fit it. And that was that! I will pick up the ute tomorrow morning.
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Monday, September 24th, 2018 AT 9:56 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,909 POSTS
If I may jump in here I have seen the fuel pressure regulator cause noise in the fuel system. Can you remove the vacuum line to see if the noise stops? Check out the diagrams (below). Please let us know what you find. We are interested to see what it is.

Cheers, Ken
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Thursday, September 27th, 2018 AT 11:22 AM
Tiny
JBWYATT
  • MEMBER
  • 8 POSTS
Wow Ken, thanks for the reply now that you mention it. I have an adjustable fuel pressure regulator installed and the vacuum line was plugged direct to the manifold, so it was jumping up and down in pressure from 48 psi up to 55 psi (under load). What I did now that you mention it is: I relocate the vacuum line on top the throttle body and the pressure is now constant at 50 psi. As far as sound goes both pumps are operating correctly at this stage.
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Thursday, September 27th, 2018 AT 5:34 PM
Tiny
JBWYATT
  • MEMBER
  • 8 POSTS
Is 60-65 psi pressure too high? I removed the adjustable fuel pressure regulator and installed the Toyota one but now with two fuel pumps pressure is 60-65 psi. Should I be worry about it or does it not matter?
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Friday, September 28th, 2018 AT 1:21 AM
Tiny
DANNY L
  • MECHANIC
  • 5,648 POSTS
Hello, I am Danny.

Here are the Toyota specifications. With key on engine off pressure specifications are 38-44 P.S.I. With engine running the specs are 31-37 P.S.I. With truck Idling. Hope this helps and thanks for using 2CarPros.
Danny-
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Friday, September 28th, 2018 AT 2:35 AM
Tiny
JBWYATT
  • MEMBER
  • 8 POSTS
Thank you Danny. I decided to remove the inline fuel pump and the fuel pressure at iddle dropped to 45 psi witch is in my eyes acceptable.
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Friday, September 28th, 2018 AT 3:46 PM
Tiny
DANNY L
  • MECHANIC
  • 5,648 POSTS
You are welcome!
Let us know if you have any other questions and thanks again for using 2CarPros.
Danny-
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Friday, September 28th, 2018 AT 4:16 PM
Tiny
JBWYATT
  • MEMBER
  • 8 POSTS
Do you guys know a working obd scanner that works for Toyota Tacoma 3rz 2.7 lt petrol 2001 model RZN154r? Please
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Sunday, September 30th, 2018 AT 10:00 PM
Tiny
DANNY L
  • MECHANIC
  • 5,648 POSTS
Hello again
Any Scanner that is OBD2 compatible will work on your vehicle. Are you asking for a Brand name? This site only answers questions we do not sell anything. Hope this helps and thanks for using 2CarPros.
Danny-
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Sunday, September 30th, 2018 AT 10:20 PM
Tiny
HARRY P
  • MECHANIC
  • 2,293 POSTS
I have got this one and it does fine: https://www.amazon.com/udiag-Scanner-CR200-Universal-Diagnostic/dp/B072RCC8XP?crid=1A2DQQAEDO5VA&keywords=obd2+scanner&qid=1538400186&sprefix=obd2&sr=8-10-spons&ref=mp_s_a_1_10_sspa&psc=1

It is nothing special but it reads and clears P0xxx codes. Have not found a post-1996 car that it will not work with yet.
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Monday, October 1st, 2018 AT 6:27 AM
Tiny
JBWYATT
  • MEMBER
  • 8 POSTS
Thank you so much.
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Monday, October 1st, 2018 AT 4:30 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,909 POSTS
Use 2CarPros anytime, we are here to help. Please tell a friend.

Cheers, Ken
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Tuesday, October 2nd, 2018 AT 10:09 AM
Tiny
HARRY P
  • MECHANIC
  • 2,293 POSTS
No problem JB. Come back anytime!
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Wednesday, October 3rd, 2018 AT 4:48 AM

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