Check the alternator clutch, they use a special alternator pulley known as an "alternator clutch" and if they fail.. they knock similar to a rod, etc. And they sound really serious when they knock but an alternator clutch runs about $100.00 and is an easy local garage repair. Have it checked before you get into engine knocks as this noise is a very common on Dodge caravans that use the clutch.
In the engine --- failed big end or main bearings
SOURCE: heater won't get hot on 2005 dodge caravan
there could be an air lock in the system, pluged heator core, a bad thermostate or control modual. try bleeding the air out through the bleeder screew if there is no heat after that have the control modual tested if its okay try having the cooling system flushed then if it still doesnt heat intall new termostate
SOURCE: location of radiator tank drain 2005 dodge caravan
The drain is located on the passenger side of the radiator at the bottom. Turn it counterclockwise to open. It is plastic so be careful if you decide to use tools to turn.
SOURCE: 2005 dodge caravan engine light code p 441
If you mean code P0441 - This Relates to Incorrect Purge Flow for Evaporative Emission System
SOURCE: 2006 Dodge Gr. Caravan. Loud humming noise upon
Misalignment of the belt, incorrect belt, worn or loose tensioner, Too tight of an adjustment (many service centers do this on purpose so when the belt breaks in it becomes properly adjusted, I do not believe in this philosophy), The belt is actually one long belt called a serpentine belt.....
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