1999 Ford F350 stalling

  • 1999 FORD F-350
  • V8
  • 2WD
  • 145,000 MILES
7.3 diesel quits running in the rain, or when the wipers are turned on. Engine will start right up and run fine, maybe a week or 5 minutes and it will do it again. No check engine light comes on and no codes in memory was found. We can not duplicate the problem in the shop, wasted a lot of water and wiper blades. We have checked plugs and fuses for moisture or rust and found none. I saw a forum on this site with the same problem.
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Wednesday, April 29th, 2009 AT 12:25 PM

1 Reply

Maybe this TSB covers you, soaked air filters can cause a lot of problems. Check build date.
7.3L DIESEL - LACKS POWER - WATER IN AIR FILTER TECHNICAL SERVICE BULLETIN Reference Number(s): 98-16-11, Date of Issue: August 17, 1998 Related Ref Number(s): 98-16-11 ARTICLE BEGINNING CONDITIONS LACK OF POWER - AIR FILTER SATURATED WITH WATER - VEHICLES WITH 7.3L DIESEL ENGINE AND BUILT THROUGH 7/13/98 ENGINE - 7.3L DIESEL - AIR FILTER SATURATED WITH WATER - VEHICLES BUILT THROUGH 7/13/98 APPLICATION Model(s): Ford Light Truck: 1999 Super Duty F Series Bulletin No: 98-16-11 Date: August 17, 1998 ISSUE Water may saturate the air filter, possibly resulting in lack of power. This may be due to the location of the air induction inlet allowing water ingestion. In addition, tight package constraints may result in suction at the inlet. ACTION Replace the air cleaner assembly or modify the snout of the air cleaner box. Refer to the following SERVICE PROCEDURE for details. SERVICE PROCEDURE Replace existing air cleaner ( Fig. 1 and Fig. 2 ) with service part F81Z-9600-BA. If F81Z-9600- BA is unavailable, perform the following: With the air cleaner in place, use a wax pencil or scribe to mark a line where the air cleaner snout passes into the inner fender ( Fig. 3 ). 1. Remove air cleaner from vehicle. 2. Cut the snout 5mm from the scribed line for the full diameter (the line should remain on the part). 3. Discard cut piece, including gasket seal. 4. Reinstall air cleaner. The snout should stick very slightly into the inner fender. 5. Check filter. Replace, if necessary. 6.
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Thursday, April 30th, 2009 AT 3:51 PM

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