Low power

1996 LEXUS LS 400

235,000 MILES • 0.5L • V8 • 2WD • AUTOMATIC

BIG CHUCK 00

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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?

Oct 1, 2019 at 9:13 PM

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CERTIFIED EXPERT
53,865 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.

Images (Click to enlarge)

Oct 3, 2019 at 1:48 PM