2000 Durango, shuts off bad mpg
#1
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Whats up Dodge Friends,
I have a 2000 Dodge Durango 4.7 I bought used a few months ago. When I bought the truck it was getting 12.5 mpg and had check engine light on. I got the codes for it and it said "second engine coil" and "evap canister" if I can remember correctly. So I changed all the spark plugs and then changed second engine coil and replaced the map sensor and none of this has helped. I get 11.1 mpg and when its cold (I live in Duluth,MN) when I start it and get to a red light, it will shut off but then it starts right back up. I'm thinking it could be an o2 sensor but not sure if its upstream or downstream. Someone help me out if you can. Thanks and I appreciate any suggestions......
I have a 2000 Dodge Durango 4.7 I bought used a few months ago. When I bought the truck it was getting 12.5 mpg and had check engine light on. I got the codes for it and it said "second engine coil" and "evap canister" if I can remember correctly. So I changed all the spark plugs and then changed second engine coil and replaced the map sensor and none of this has helped. I get 11.1 mpg and when its cold (I live in Duluth,MN) when I start it and get to a red light, it will shut off but then it starts right back up. I'm thinking it could be an o2 sensor but not sure if its upstream or downstream. Someone help me out if you can. Thanks and I appreciate any suggestions......
#2
#3
#4
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O2 sensors will give you the bad gas mileage. Your battery is probably the problem with it shutting off if it just dies since the alternator isn't putting out enough at idle and your battery can't put out enough volts either when it's cold or not charged yet by the alternator because most of it's reserve capacity is gone, so the PCM kills the engine.
#7
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