Chevrolet · Canada · Crit
Chevrolet S Series, T Series: Brakes
Affects Chevrolet S Series, T Series · 1994 — about 1K vehicles.
The hazard
On certain S10, S15, T10 and T15, the vacuum hose may detach from the brake booster check valve as a result of engine backfire. This would result in increased engine idle and loss of brake power assist after depletion of the booster vacuum reserve. A significant increase in brake pedal pressure experienced by the driver combined with increased engine rpm when minimal stopping distances are required could result in a vehicle crash. Correction: A clamp will be installed on the power brake booster hose at the brake booster check valve end.
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