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Park Ave Fuel Gauge

Tiny
TOMMYMAC
  • MEMBER
  • BUICK PARK AVENUE
I have a 2000 Park Ave with 175k+ miles on it. 3.8 L and she runs like a champ.

The fuel gauge has a mind of its own when the fuel drops below the 1/4 mark; the nearer I get to empty the frequency seems to increase. Sometimes the gauge reads completely full, then will drop to the correct reading somewhere below 1/4. Is there a concern for a future repair, or should I simply fill 'er up when I drop below 1/2 full?
t
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Monday, April 9th, 2007 AT 2:58 PM

2 Replies

Tiny
MIKE H R
  • MECHANIC
  • 3,094 POSTS
Sounds like the fuel guage float, located in the gas tank, sound like it could be going bad.
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Monday, April 9th, 2007 AT 7:36 PM
Tiny
LSUSSEL
  • MECHANIC
  • 252 POSTS
As my understanding, this car we speak of doesnt have a float, its got the sensor and an anti sloush module. Try this,

get a bottle of chevron techron, its about 8 bucks from any auto parts store, pour it in on an close to empty tank and then fill up with a higher grade fuel, this should fix the problem, it has worked many times for me for the cars I worked on as well, and my car did the exact same thing as you, just below 1/4
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Friday, April 20th, 2007 AT 10:52 PM

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