Question about 1999 Ford Super Duty F 450

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1999 Lazy Daze motor home, 68,000 miles, always got regular maintenance and repairs. A 2 months ago the computer went out and was replaced by a certified mechanic. We are now 1500 miles from home and the engine has started burning oil at the rate of a quart every 150 miles. We would like to get it home, but also need an idea of what the problem might be before taking out across the hot desert.

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  • 22,161 Answers

Check for damaged pistons, rings and gaskets by pressure testing the cylinders first. Might even be a blocked breather pipe, who knows until you look.

Posted on Aug 09, 2017

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6ya6ya
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Posted on Jan 02, 2017

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Molson02536
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SOURCE: I have a 2003 Ford F150 Supercrew (4.6L, 8-cylinder)

Does not sound right, the engine oil capacity for your engine is 5.7 liters with the oil filter. To add 5 quarts, your would have been running with no oil for who knows how long. As for your engine running the way it is, with no engine oil means a complete over hall. The ruff idle is caused by worn cam shaft and the crank shaft bearing must be worn to, and the possibility of spinning a bearing is high. Sorry for the bad news but with the information you gave me, this is the what i can come up with. 
Good luck and hope there is a better out come. 

Posted on Jul 21, 2009

youredone82
  • 426 Answers

SOURCE: ABS & Check Brake System comes on occasionally

wait till it goes on again and go to your local pepboys, autobarn autozone rand s etc they usually offer free computer diagnostics, get me the codes, i cn help you then,

Posted on Sep 30, 2009

  • 1 Answer

SOURCE: lost engine oil: 2002 Ford F150 Supercrew 4x4 5.4l engine

i have 97 f-150 4.6L and engine oil is mixing with coolant

Posted on Dec 07, 2009

  • 1 Answer

SOURCE: FORD FOCUS OIL LIGHT STAYING ON

i have exactly the same problem, same model and year, car runs perfect but oil light comes on after 5 mins or so. its got me stumped!

Posted on Dec 14, 2009

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