One problem related to manifold/header/muffler/tail pipe has been reported for the 1999 GMC Savana. The most recently reported issues are listed below.
Intake manifold gasgets deteriating and have to be replaced with 25,000 miles on the vehicle.
| Manifold/header/muffler/tail Pipe problems | |
| Coolant Leaking problems | |
| Car Stall problems |