Some 2018-2019 Express and Savana vans equipped with the 4.3L V6 engine (RPO) LV1 may have a hard start condition, broken fan belt, loss of power steering or loss of power brake assist. These conditions may be the result of water leaking from the cowl area into the generator vents. Under certain weather conditions, the water may freeze inside the generator and prevent it from turning.
If these conditions are found, replace the generator, fan belt, and any other pulleys that have been contaminated with rubber build-up from the belt heating up.
The common location for the water leak is at the lower cowl of the engine compartment. (Fig. 12)
Fig. 12
Remove the air inlet grille panels and the windshield wiper module to access the inner lower right-side cowl seam. (Fig. 13)
Fig. 13
Apply Kent Automotive High-Tech Clear Seam Sealer to the seam. Be sure to apply the sealer to the entire inner lower right-side seam. (Fig. 14)
Fig. 14
Refer to Bulletin #19-NA-037 for additional information.
– Thanks to Matt Singer
