04 4.0 with 140k miles
Was under the jeep tonight changing out an o2 sensor (turns out I need a pigtail as a wire is broken right next to the connector on the harness side :banghead: ) when I noticed a few red drops on the front edge of the oil pan
. Can't see the water pump weep hole, but noticed some red crusty stuff growing out the side of the thermostat housing...
How common is it for the housing to leak on these?
I'm prob going to replace the pump anyway, and do a flush (even though I hate taking off good parts) any recommendations for brands of punp that are good, or to stay away from?