How do you change a water pump on a 1990 3.3 dodge caravan?
You must remove the serpentine belt first. A tensioner tool
makes that easiest. Drain the coolant out, if it is not old it can
be used again. Pull the pulley off the pump, use a screwdriver
between the bolts to keep the pulley from moving. Loosen all of
them first. then Take off the pulley. Remove the bolts, I think
there are six not evenly divided out. Only the front part of the
pump gets changed and the housing stays on the engine. Clean all
surfaces. Use some gasket sealer (blue Form-a-Gasket) in the
depression in the pump going around the outside of the pump. evenly
tighten the bolts on the new pump. Re-assemble, add coolant, put
back on serpentine belt. Done.