F 250 4WD Pickup V8-7.3L DSL Turbo VIN K (1994)
Muffler: All Technical Service Bulletins
Engine - White Smoke Coming From Exhaust Pipe
Article No.
95-7-19
04/10/95
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ENGINE - GREEN CONDENSATE OR WHITE SMOKE COMING FROM EXHAUST PIPE - VEHICLES BUILT THROUGH 3/95
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EXHAUST SYSTEM - GREEN CONDENSATE OR WHITE SMOKE COMING FROM EXHAUST - VEHICLES BUILT THROUGH 3/95
LIGHT TRUCK:
1994-95 BRONCO, F-150, F-250
ISSUE:
Evidence of "green" condensate or "white" smoke coming from the exhaust tailpipe may occur on some vehicles. This may be caused by a chemical
reaction between engine combustion gases and residual chromium in the muffler. Exhaust gas pressure forces this "green" condensate out through the
tailpipe. The "green condensate is not related to engine anti-freeze. The "white" smoke is created when moisture that may accumulate in the cold muffler
is heated by engine combustion gases. As the muffler reaches operating temperature. this moisture is emitted into the atmosphere as steam.
ACTION:
Drill two (2) condensate drain holes in the bottom center of each muffler head. The two (2) holes will allow moisture to drain out of the muffler before it
has a chance to collect in the muffler and dissolve the chromium. It, also, will not be heated by exhaust gases and be emitted as steam. Refer to the
following Service Procedure for details.
SERVICE PROCEDURE
1.
Locate the center of each drain hole along the vertical centerline of both the front and rear muffler head, approximately 3/32" (2.4 mm) above the
roll flange. Refer to Figure 1.
2.
Mark the hole location with a center punch.
3.
Drill a 3/16" (4.8 mm) hole in each muffler head.
CAUTION:
DO NOT DRILL THROUGH THE MUFFLER SHELL.
WARNING:
USE AN AIR TYPE DRILL TO AVOID POTENTIAL ELECTRICAL SHOCK HAZARD.
OTHER APPLICABLE ARTICLES: NONE
WARRANTY STATUS: Eligible Under The Provisions Of Bumper To Bumper Warranty Coverage
OPERATION
DESCRIPTION
TIME
