[dfouryou]

would a fuel regulator cause me to loose over a 100 miles on a tank of gas?.I have a 99 durango with a 5.2.The overhead reding is telling me 350km on the det whem it used to read 500+ on a fill up.

 

[SolidStateS15]

no not the regulator, but could be the fuel filter. also check the basics like plugs, wires, cap & rotor, air filter.

 

[dfouryou]

That was my second thought.I did my plugs, rotor ,wires etc.I did notice a humm from under the durango

 

[SolidStateS15]

a hum from where under? that would be a suspension/wheel bearing/diff problem.

 

[dfouryou]

actually the hum is even when it's in park

 

[01dakotaqc]

actually the hum is even when it's in park

is the hum coming from the rear of the durango?? maybe its the fuel pump....