Question about 2002 Ford F150 Regular Cab

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Lost engine oil: 2002 Ford F150 Supercrew 4x4 5.4l engine

2002 Ford F150 4x4, 5.4L engine. Truck has 107000 miles and never lost a drop of oil. HAd spark plugs changed and all fluids changed front to back of truck to insure a continued and long vehicle life. 5 weeks later discovered I was 5 quarts low on engine oil, with no alarm or idiot light. Re-filled and the trend is the same, still loosing oil at an alarming rate. Always used Mobil 5w20 synthetic oil. No oil leaks visible, no oil on undercarriage or in driveway. tailpipe doesnot show black. No smoke at startup. No power loss. Any Ideas? Can the catalatic converter be atomizing the oil eliminating any residue out of the tailpipe?

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  • Anonymous Jan 08, 2009

    I have 2 ford E250 Vans with the 5.4 motor.They each use about 1 quart every 1000 mi. 1st van is 97 with 190,000 mi. The 2nd is a 2001 with 100,000 mi. No smoke & no leaks. Coolant is clean. ??

  • BrokeF150TTS Jan 10, 2009

    I have a 2003 F150 and have the exact same scenario. Truck never caused issues then almost over night was down 4 quarts. No large leaks, no oil on the ground and the exhaust seems fine. Also suddenly the truck is making very loud noises (heavy knocking like a diesel) on the passenger side of the engine compartment and this one was overnight. I almost thought that someone had drained the oil but when I refilled it the loud engine noise only partially subsided. It's still noticable from inside the cab when the day before it was fine. I would have expected a huge pool of oil on the ground but there is nothing and the coolant is fine, clear and yellow.

  • ledbetter719 Jan 16, 2009

    I have a 2003 F150 Supercrew 4.6L V8



    I have the same oil problem.



    I keep adding oil...the truck runs well.

  • jamessloan1 Feb 06, 2009

    Same problem on a 2002 Expedition 5.4L. Nothing changed, just started using about 1.5 qts. per 1000 miles. No leaks, no smoke, nothing. Is is possible that overly high crankcase pressure is forcing minute amounts of oil into the chambers? Not enough to smoke, just a little over time? if so, what's the fix?

  • scootsw Feb 12, 2009

    1999 F150 SuperCab with the 5.4. I have 114,000 miles and suddenly it started to burn about a quart every 1000 miles. No visible signs of oil burning. Coolant is fine also. Had the plugs replaced not long ago and a coil also. Could that have cause this to start happening?

  • bwheeler May 11, 2010

    Same EXACT problem. Start with six quarts, 3k miles later, three to four quarts down. VERY SCARY! The only thing I know I changed sometime before the oil loss began was the PCV valve. (It was stuck open, but no 'gunk' inside) I know it is possible, BUT I wouldn't think all of that oil is being pulled through the intake. What say you? (As for the oil "walking-off", I marked my plug/oil pan lightly with a chisel. No movement. And cooling system is OK.)

  • Anonymous Mar 14, 2014

    I just changed the battery to my ford f150 to a gel battery. The alarm no locked my truck and it will not start. What can I do so that I can drive my vehicle

  • Anonymous Mar 17, 2014

    1993 Ford Festiva 1.3 engine lost power on acceleration also it seems it was leaking oil from the front of engine. What's wrong?

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This is certainly one of the strangest things I have ever heard as a mechanic. . This almost sounds like some one is playing a game of letting your oil out this vehicle. With no visible leaks no burning smell of oil. However I would recommend that you check the coolant in the radiator and see if the oil is in the coolant. (If they are mixing together) If they are mixing the coolant should have a milky look to it, creamish white. If its good then the only other logical explanation is that the vehicle i s burning alot of oil, but if that was true you would see a grayish blue smoke from tail pipe. If you are 100% sure they are no oil leaks on this vehicle, then this problem is surely strange. Check coolant and get back to me. Good Luck

Posted on Dec 29, 2008

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

Posted on Dec 07, 2009

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I have an f150 super crew cab 2002 and I have these same oil problems and have not leaks. I also in the last two years to different sparks plug blow right out the engine and the coil spring were blowed apart. Went to chang my spark plugs July 2, 2009 the No.5 spark plug had oil on it and the No.1 which was the last one to blow out the engine last year went to replace it pulled out the old one and can't get the one new in it's if it's stripped all of the sudden.I also am not blowing blue or gray smoke and just passed emission.

Posted on Jul 02, 2009

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I have a 2005 f-150 supercab 4x4 lariat with 5.4...46,000 miles on it. I change my oil every 3,000 miles like clock work. I just took my truck to the dealer. The truck burnt 2.50 quarts in 1,000 miles. Ford ran a leak down test and compression test... it was all over the place in the readings needless to say they are looking to replace the motor with a long block....but they have to tear it down and have a Ford inspector look at it. I just dumped a 2004 f-250 4x4 6.0 diesel with 40,000 miles...blown heads,turbo,abs,heater core, upper and lower ball joints, bead plates, on and on. My opinoin of Ford now is they ****.

Posted on Oct 13, 2009

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Same same same...02 never missed ol change...all of a sudden 52k on engine and major oil loss? engine was knocking and all mechanics said engine is done!! ford did nothing for me. 40-4years all gone! 5k $ for new engine and now at 107k checked oil and down 3qts.? no warning no lights no nothing? why isn't there any warning on the oil loss? what is the deal with these engines? come on ford step up and own this!

Posted on Aug 02, 2012

  • ray mcpadden jr Aug 02, 2012

    same thing here...2002 no warning oil loss,never missed a oil change! 52k on engine and it's done. $5k for new engine and ford does nothing for me! nothing! now at 107k on new engine and checked oil and down 3qts.! here we go again?! why no warning or idiot light for oil down? why no oil anywhere but in my engine? no evidence of a leak? come on ford own up to this one!!

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I had a 97 f150 with a 5.4l motor. It blew the spark plugs out two different times. One blew clear out of the motor. I was able to rethread the plugs into the head and I got 327,000 miles out of it until the next one blew out and I replaced the motor. Toward the end I was adding a quart of oil about every 1000 miles or so and figured it was burning off but I never saw any evidence of it. I would like to know what causes this oil problem. no worries I have a 04 chevy for a year now with no problem with anything whatsoever.

Posted on Dec 11, 2009

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