IC Bus Ce School Bus: Engine

Affects IC Bus Ce School Bus · 2016–2019 — about 18 vehicles.

The hazard

On certain vehicles equipped with 8.8L liquid propane gas engines, the liquid propane delivery module (LPDM) relay for the propane booster pump and scavenge pump may experience intermittent continuity where the contacts in the relay may not make contact. This could cause the fuel pump to stop running, which could result in a hard start, or an unexpected engine stall without the ability to restart, which could increase the risk of a crash causing injury and/or damage to property. Correction: Dealers will replace the LPDM relay with a relay that has no manual adjustment.

What to do

Contact your dealer; the remedy details were not included in the filing.

Critical — crash/injury risk now High — injury risk; see remedy Moderate — fix at next service Low — minor / informational