Bad fuel

Tiny
ANGIEWLAGRANGE
  • MEMBER
  • 1998 CHEVROLET TAHOE
  • 163,000 MILES
I got fuel the other day and we believe it had water in it. Husband put lucas treatment in it but we now believe that we don't have enough gas mix to this lucas. Checked the pressure of fuel pump and it is 60. The truck will idol for a moment and then die. When you give it gas it dies. What can I do to fix the problem. Add more premium gas?
Wednesday, May 1st, 2013 AT 5:48 PM

1 Reply

Tiny
CARADIODOC
  • MECHANIC
  • 33,723 POSTS
Premium gas is not the answer. That will make any problem worse. It is harder to ignite and does not produce more power. It simply allows engine builders to design an engine to produce more power without the side affect of spark knock occurring.

The first thing to do is check for diagnostic fault codes. Many auto parts stores will do that for you for free. What you described sounds like it could be fuel supply-related but it's not likely to be fuel quality-related.
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Wednesday, May 1st, 2013 AT 6:10 PM

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