Using a lot of gas
#1
Using a lot of gas
I've got a 2000 bonneville SE that is using a lot of gas. I use to be able to fill the tank and go 57 miles before the needle came off of "F," now I'm only going about 38 miles before the needle is moving. I replaced both O2 sensors and that didn't help. Anyone have a thought?
#2
When was your last full tune up done (plugs, wires, air filter, fuel filter)? And, how about your oxygen sensor? Has it ever been replaced?
How many miles per gallon are you getting? The method you described isn't the most scientific.
How many miles per gallon are you getting? The method you described isn't the most scientific.
#3
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It could be the Maf sensor or fouled plugs.
You can change the plugs and check the wires. You need a scanner to check the maf.
Also whats your engine temp like once warmed up?
You can change the plugs and check the wires. You need a scanner to check the maf.
Also whats your engine temp like once warmed up?
#5
Replaced the spark plugs and wires today. The old ones had a lot of buildup on them and two of the wires broke off almost as soon as I touched them. I live in Erie, PA and was told the gas stations recieve a different gas mixture in the winter that create lower MPG. Anyone heard of this?
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Originally Posted by gtman220
I live in Erie, PA and was told the gas stations recieve a different gas mixture in the winter that create lower MPG. Anyone heard of this?
#7
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You should see better mileage with the new plugs and wires.
The cold winter weather and the winter gas formula will also kill your mileage in stop and go driving.
The cold winter weather and the winter gas formula will also kill your mileage in stop and go driving.
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I'm about to replace my plugs, wires and air filter. I searched the tech forum and could not find the specs for gapping the plugs. Is there a more extensive article/thread on simple replacement of these parts? I'd also like to replace my O2 sensor and fuel filter, but am checking dealership paperwork to see if that was taken care of as my warranty expired a year ago. Currently 50,000 miles, almost exactly. If there are specific threads for replacement of O2 sensor and fuel filter, please advise? Thanks!
#9
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Re: Using a lot of gas
Originally Posted by gtman220
I've got a 2000 bonneville SE that is using a lot of gas. I use to be able to fill the tank and go 57 miles before the needle came off of "F," now I'm only going about 38 miles before the needle is moving. I replaced both O2 sensors and that didn't help. Anyone have a thought?
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05-19-2003 04:54 PM