Try replacing the fuel filter.
I have a 1999 with 200,000 miles on it and still running strong.
AnswerYou need a tune up. You know plugs, wires, distributer cap maybe an oil change. You also have to change the pcv valve, it makes a huge difference when you're getting up in miles.
i have 2004 blazer in ammman Jordan not more than 87 miles per gallon.
i have not found a blazer or jimmy that gets over15 mpg no matter what ya do to it.
The 1977 Chevy Blazer gets 17 miles per gallon on the highway. This model vehicle gets 13.3 miles per gallon in the city.
Mine has 320,000
At 35mph it runs rough. Also when idling it will quit running, sometimes. Does that sound like I need new spark plugs? How many miles are new plugs & wires good for?
17 to 19 on average.
You are running 9 miles per hour.
At 100,000 miles or if it is running bad or missing.At 100,000 miles or if it is running bad or missing.
bout 18-20 MPG
many have lasted over 250,000 miles, the 4.8 is very durable