1996 Bronco/F-Series

Section 03-04E: Turbocharger, 7.3L Diesel Engine

1996 F-250, F-350 and F-Super Duty Workshop Manual

DIAGNOSIS AND TESTING

Is there oil present?

Yes	No
GO to A2.	GO to A5.

Is there oil present?

Yes	No
Turbocharger OK. CHECK crankcase breather assembly for proper operation.	GO to A3.

Check for restriction in the turbocharger oil supply path in the turbocharger pedestal assembly and the cylinder block.

Is there a restriction?

Yes	No
SERVICE as required.	GO to A4.

Check for restriction in the turbocharger oil return path in the turbocharger pedestal assembly and the cylinder block.

Is there a restriction?

Yes	No
SERVICE as required.	REPLACE turbocharger. REFER to Turbocharger Removal and Installation in this section.

Is there oil present?

Yes	No
GO to A6.	Turbocharger OK. If exhaust is smoky, condition is elsewhere in vehicle. REFER to Powertrain Control/Emissions Diagnosis Manual OBDI.

Is there oil present?

Yes	No
Condition internal in engine.	GO to A4.