Many dealerships charge four hours labor and $100-plus for the re-seal kit, potentially putting the out-of-pocket repair costs between $400-$500. However, repairing a leaking vacuum pump is one of the simpler of Cummins repair tasks for 1991.5-2002 trucks. It just takes time and a little patience. In this TDR article, automotive writer Bruce W. Smith walks us through the process.
HOW-TO: 1991.5-2002 CUMMINS VACUUM PUMP RE-SEAL
