This factory service and repair manual for the 2012 Chevrolet Express 4500 has a 6.0L V8 that may be plumbed for compressed natural gas instead of a flex-fuel blend, which puts high-pressure storage, regulation and metering hardware on a cutaway chassis that otherwise looks conventional. The alternative is the turbocharged 6.6L diesel V8 of 403 cubic inches. One body, the two-door cutaway, and one trim, Base, keep everything on the vehicle side of the equation simple.
Engines covered
- 6.6L V8 (403 cu in) — OHV, turbocharged, diesel
- 6.0L V8 (364 cu in) — OHV, naturally aspirated, CNG or flex-fuel
Body styles covered
- 2-door cutaway
Trims covered
- Base
Known issues on the 2012 Express 4500. The complaint record runs to four entries: one each against the fuel and propulsion system, the electrical system and the steering. The numbers are too small to read as a defect pattern, but each of those systems has a full section here, with fuel storage and delivery covered separately for diesel, flex-fuel and natural gas, wiring diagrams with connector and ground locations for tracing circuits through the cab, and steering gear, pump and linkage service with the alignment and torque specifications alongside.
This preliminary information communicates information about how to determine if a wheel and tires size change is available.
This Preliminary information communicates the steps on how to save a GDS2 Session Log and upload to a Technical Assistance Case in CX Connect.
This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
This service bulletin provides information on Tire Sidewall Irregularities.
This service bulletin provides information on replacing the intake manifold when the engine is replaced after severe internal engine damage.
This Preliminary Information communication provides information to the technician about vehicles that have had multiple repair attempts that are being performed on customers vehicles that exhibit vibration conditions without utilizing the s
The service bulletin advises the tech of a normal transmission shift condition and the delay in throttle response when the throttle plate is opened rapidly and advises the customer that it is normal for the delay.
Showing the 8 most recent of 354 technical service bulletins on file with NHTSA.
ON 9/30/2016, A THERMAL EVENT OCCURRED WHILE THE BUS WAS IN THE SHOP FOR ROUTINE MAINTENANCE. AS THE BUS WAS BEING MOVED (BACKED-OUT) OF THE SERVICE BAY AND SMOKE WAS SEEN ESCAPING
ON 9/30/2016, A THERMAL EVENT OCCURRED WHILE THE BUS WAS IN THE SHOP FOR ROUTINE MAINTENANCE. AS THE BUS WAS BEING MOVED (BACKED-OUT) OF THE SERVICE BAY AND SMOKE WAS SEEN ESCAPING
TL* THE CONTACT OWNS A 2012 CHEVROLET EXPRESS 4500. IN COLD WEATHER, THE DIESEL EXHAUST FLUID (DEF) FROZE, WHICH CAUSED THE VEHICLE TO DECELERATE UNTIL IT EVENTUALLY IDLED. THE DEA
TRAVELING AT 50 TO 55MPH I MAKE A EASY BRAKE APPLICATION AND THE FRONT WHEELS WILL START OSCILLATING UNTIL THE FRONT GOES INTO A VIOLENT SHAKE. RELEASING THE BRAKE WILL STOP THE SH
Showing the 4 most serious of 7 complaints filed with NHTSA.
