1999 7.3 diesel all stock with a lift and35s it throws a p1248 and a lot of white smoke out the pipe and a loss of power please help i have had the truck for only a week
p1248 please help
Hook it, I'll pull it.
Joined: May 2007
Posts: 15,037
Likes: 4
From: Grand Lake, La.
There are 6 rubber boots on the top of the engine. There are 4 on the tubes going to and from the intercooler. There are 2 orange ones under the spider going to the intake manifolds in the valley. I think one or more are leaking. Make sure they are in place and the clamps are tight.
Laughing Gas
Joined: Jan 2007
Posts: 870
Likes: 9
From: Carbondale, CO
Tormz, sounds like a leaking fuel bowl drain valve. Have a look at these links.
http://www.dieselorings.com/docs/FuelDrain.pdf
Replacement O-rings for Ford Diesel Engines
Bob at Diesel O rings is a great guy selling quality stuff with fast, professional service.
http://www.dieselorings.com/docs/FuelDrain.pdf
Replacement O-rings for Ford Diesel Engines
Bob at Diesel O rings is a great guy selling quality stuff with fast, professional service.
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Mountain Pass
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Hook it, I'll pull it.
Joined: May 2007
Posts: 15,037
Likes: 4
From: Grand Lake, La.
No, that (water in fuel drain) valve will not cause that. Did you check the rubber boots I mentioned?
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Cargo Master
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From: BoCoMo
It's a small drip every 2 seconds. That is causing all the white smoke and loss of power?
So how much is leaking out the tube under the engine? It will take you ten minutes to fix the drain valve once you get the parts.
New User
Joined: Dec 2011
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Did this happen all of a sudden?
Do you know what you are doing?
If you don't know take it to a mechanic, we have lots of tools and equipment to get it done right the first time instead of replacing things that are not broken.
Check your MAP sensor and hose from intake to MAP first. You really need a good scan tool that shows MAP data to test MAP. You will need to apply air pressure to MAP and watch voltage to ensure if MAP is good.
Then check manifold crossover for leaks and also inter cooler and its feed and return pipes and fittings. (as mentioned above)
If all is good there most of the time its the TURBO. Take it off and have it rebuilt.
Do you know what you are doing?
If you don't know take it to a mechanic, we have lots of tools and equipment to get it done right the first time instead of replacing things that are not broken.
Check your MAP sensor and hose from intake to MAP first. You really need a good scan tool that shows MAP data to test MAP. You will need to apply air pressure to MAP and watch voltage to ensure if MAP is good.
Then check manifold crossover for leaks and also inter cooler and its feed and return pipes and fittings. (as mentioned above)
If all is good there most of the time its the TURBO. Take it off and have it rebuilt.
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