2007 Buick Rainier Q&A

2007 Buick Rainier Question: gas gauge problem

gas gauge drops off to empty after only four or five gallons are used. when you fill it up it reads full again until 4 or 5 gallons are used. it started doing this at about 51,000 miles. -
Answer 1
Most likely your sending unit is going out, to correct this you will probably be replacing the fuel pump assembly. -
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