Use a scan tool to reset the ECM
Removing the battery corrupts the CPU and the immobilizer system
Try locking the vehicle. Leave it for a little while, reopen and you may find the immobiliser has reset and the car will start. I suggested this to a Pagerro driver after his battery had gone flat and hey presto the car started first time.
SOURCE: speed sensor replacement issues in 1999 Dodge Grand Caravan
The buzzing sound is from the torque convertor lock up solenoid,there is a fuse for this under the hood to verify thats the problem from the buzzing,next where did you get the vss,if it's not oem from a dealer than I would think it's the problem also using a obii scan tool check and clear any codes,so as far as not starting is this from a dead battery or other issue I would unhook the vss and see if it can start.
SOURCE: overheating 97 dodge caravan sport
i had the same problem, i dont remember the name of the piece but its mounted right in between the driver side headlight and the radiator. its a relay that turns the fans on when the car gets hot. its mounted on the body of the car. there should be wires leading from the radiator to the piece im talking about.... good luck I also paid about 35 dollars for the piece
SOURCE: caravan overheating- what should I check out next?
does the fan come on when the ac is on? if so the fan is most likely ok, the problem on this car is most likely the cylinder head gasket is leaking.
SOURCE: 2003 dodge caravan 3.3l v6 overheating
check cooling fan relays,also make sure all air is bled out of coolant system,,,replace coolant sensor
SOURCE: 1999 dodge grand caravan 3.8l engine cooling fan won't turn on
dont think so,seem to remember a reostat somewhere at the bottom of the rad right hand side ,check for earth problems as well ,sorry if vague but i seem to be forgetting things as i get old .
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