Wherei fuel filter located 2009 dodge grande caravan?

SOURCE: Grand Caravan A/C filter on a 2004 3.3L

most likelly will be behind the center of the dash in the lower part of it remove the plastic cover ant lower center of dash and should be a little plastic cover to remove filter
and thank for include engine size with question that make it easer to answer. good luck

SOURCE: air conditioner blower motor resister on dodge grand caravan

I have a 2002 Grand Caravan and it is located behind the glovebox. It may be in the same place.

SOURCE: 2002 Dodge grand caravan

It would appear that the relay is located on the cross rail that runs across the front of the vehicle (in front of the radiator). I found out that it is riveted in place by a single rivet, so in order to replace mine, I will have to remove the rivet and use a self-tapping screw to secure a new one.
The fan relay is located in the fuse panel located under the hood beside the battery. It will be marked under the lid. Make sure you check the maxi fuse for the fan also. 

SOURCE: 94 dodge grand caravan no fuel in fuel rail

Dear Ron, you have replaced fuel pump and fuel filter. You have checked the fuel pump relay. Still no fuel in rail. Try bypassing fuel relay with jumper from batt to fuel pump. If o/k then check computer for ground to relay. This system uses a relay that is operated by the computer that supplies a ground for the relay to operate. The wire color is green,16 gage. If the ground is not available then "no fuel" Check this with a test light. Key on and crank apply test light to ground wire and other end of light to ground. You should hear relay click and get fuel. If this checks out you will need to replace computer or get creative with rewiring the relay so it works without computer input. Good luck Moe

SOURCE: fuse box diagram for 2000 Dodge Grand Caravan.

The panel or the housing normally lists the names of the items that are controlled by the fuses. If that doesnt work, disconnect the battery terminals and you are good to go