Bad Gas Mileage!!
12-09-2005, 07:35 PM
#11
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Re: Bad Gas Mileage!!
Originally Posted by Fabrik8
Interesting. Does your temp gauge read correctly? Fuel system aside, there are a few sensors that can cause stuff like this, but again, I'm not sure how much they would affect the gas mileage compared to what you're seeing.
If the coolant temp sensor was bad, it would run like shit, but you'd see your temp gauge act wacky. I just can't imagine what would make your mileage go down so bad, most sensor problems will make it run like crap but not affect mileage that much. Most sensors that are bad will cause it to run poorly all the time, not just under temp conditions (except for the coolant temp). Does it run like crap only at idle or under load also?
If the coolant temp sensor was bad, it would run like shit, but you'd see your temp gauge act wacky. I just can't imagine what would make your mileage go down so bad, most sensor problems will make it run like crap but not affect mileage that much. Most sensors that are bad will cause it to run poorly all the time, not just under temp conditions (except for the coolant temp). Does it run like crap only at idle or under load also?
12-12-2005, 03:23 PM
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Re: Bad Gas Mileage!!
so i go to work this morning and every light i hit, the car dies slowly. It fades out almost. I can restart and go again. why is it dieing. gosh all im having with this car is problems!!
12-12-2005, 06:47 PM
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Re: Bad Gas Mileage!!
Originally Posted by ECR
so i go to work this morning and every light i hit, the car dies slowly. It fades out almost. I can restart and go again. why is it dieing. gosh all im having with this car is problems!!
to tell you the truth it could be many different things. an o2 sensor would cause poor fuel mileage but not to the extent that you are describing. i would have say a mass air flow meter or map sensor is bad or you have a vacuum leak to the map sensor. its been a while since i have messed with a volvo
from what i remember you car has the 2.8 v6? and its a coupe? well i can check it out for you but youd have to bring it to me. lemme know how it goes
12-13-2005, 04:06 PM
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Re: Bad Gas Mileage!!
Originally Posted by geonfreaq
Could even be a bad pump they put it.
Oh and you dont have a PCV valve on that car, you have a flame trap.
Oh and you dont have a PCV valve on that car, you have a flame trap.
what the hell is a flame trap???
12-13-2005, 05:38 PM
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Re: Bad Gas Mileage!!
Originally Posted by geonfreaq
A PCV valve for a Volvo.
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