yo George,
What are the symptoms?
Such as a Misfire?
Also the Check Engine Light (CEL) comes on when the electronic engine control system is not working properly. The check engine warning indicator comes on briefly when the ignition switch lock cylinder is turned to ON, and should turn off when the engine starts. If the check engine warning indicator does not come on when the ignition switch lock cylinder is turned to ON or if it comes on while the vehicle is moving, the system is malfunctioning
If the CEL does not light up at all when starting it; then suspect that bulb is burnt-out or loose, socket was damaged by PO or shop, etc.
or someone removed it.
Is the CEL lit while driving?
Did the shop check for Codes?
Does the shop have the FORD 1996 Bronco Powertrain Control/Emissions Diagnosis, OBDII to do the Pin-Point testing? If not... time to find a shop that does have it.
I have a 96 Bronco PCED CD, but it is not loading.
GROUND
Locations & Components in a 96 by me
http://broncozone.com/topic/20952-loose-ground/page__pid__109954__st__0&?do=findComment&comment=109954
excerpts:
G101 front of engine compartment, front of fender apron (D1) - RH = Passenger side mine has 2 small black wires between starter relay & headlight; this is #5 in the diagram;
Powertrain Control Module (PCM), 5.0L
Powertrain Control Module (PCM), 5.8L
G104 Serves Component: (G100 & G104 (tied together, see location diagram))
Component
4WABS Control Module
4WABS Data Link Connector
4WABS Relay #1
Instrument Cluster
Powertrain Control Module (PCM), 5.0L
Powertrain Control Module (PCM), 5.8L
Programmable Speedometer/Odometer Module (PSOM)
Trailer Relay Box
G103 (battery to engine) Lower RH front of engine
Component
4WABS Pump Motor
Battery
Data Link Connector (DLC)
Mass Air Flow (MAF) Sensor
Powertrain Control Module (PCM), 5.0L
Powertrain Control Module (PCM), 5.8L
Right Front Park/Turn Lamp
Right Front Side Marker Lamp
Right Headlamp
G103 (battery to engine) Lower RH front of engine Component
4WABS Pump Motor
Battery
Data Link Connector (DLC)
Mass Air Flow (MAF) Sensor
Powertrain Control Module (PCM), 5.0L
Powertrain Control Module (PCM), 5.8L
Right Front Park/Turn Lamp
Right Front Side Marker Lamp
Right Headlamp