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Low power

Tiny
BIG CHUCK 00
  • MEMBER
  • 1996 LEXUS LS 400
  • 0.5L
  • V8
  • 2WD
  • AUTOMATIC
  • 235,000 MILES
I had to replace my fuel filter, fuel pump, plugs, coils, fuel regulator, air filter. I did this because I ran out of gas and I didn't have power. It ran good for 2 weeks and then just lost power again. It sat up for 2 days and it started up real good. I top it off it ran good for a few days. Then the same problem no power. What could it be?
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Tuesday, October 1st, 2019 AT 9:13 PM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
Hello,

This sounds like you have a fuel pump going out. To be sure we need to check the fuel pressure. Here is a guide to help and instruction below on how to change the pump out:

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

These guides can help as well:

https://www.2carpros.com/articles/engine-has-low-power-output

Check out the diagrams (below). Please let us know what you find. We are interested to see what it is.
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Thursday, October 3rd, 2019 AT 1:48 PM

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