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Pickups Ford F-Series Ford F-150 Owners
501 messages, Last post on Aug 22, 2008 at 6:06 PM
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Replying to: fradelva (Dec 23, 2007 8:34 pm) |
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Replying to: mschmal (Dec 23, 2007 9:26 pm) |
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I have an 88 f150 xlt Lariat with a 5.0l in mint condition with only 84, 000 on it. I have replaced and upgraded just about everything on this motor, from intake to fuel system. I recently found oil in my coolant. the truck is still running great no pings, no knocks. Do I need to replace the head gasket?
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Replying to: slicknuggets (Dec 26, 2007 9:04 am) A common mistake by even fellow mechanics is a leak in the oil cooler for the transmission. Transmission fluid looks just like engine oil when aggitated and mixed with coolant. Here is a simple test; disconect both transmission lines to the radiator. Hold your finger over one of the holes and put some compressed air through the other port for about five minuts. During this test, look for some small air bubbles coming up into the radiator. This test can be inconclusive, the leak may only occur when hot. If no bubbles, I would still install an after market oil cooler for the transmission, blow out excess fluid from the internal cooler, and drain/flush the radiator and fill it with water. Then run the engine for a good amount of time and look for any oil in the radiator. After all this testing if there is still oil getting into radiator, I would suspect a leak in the lower manifold gasket first, and not the head gaskets, (more common with the 5.0). While head gaskets can introduce oil into the cooling system, it is very rare. I would be very interested in what you find out on a repost. Good luck.
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Replying to: brnnln1 (Dec 11, 2007 7:45 am) "In the interest of customer satisfaction, Ford Motor Company is extending the limited warranty on the Fuel Injectors to a total of 11 years or 120,000 miles from the warranty start date, whichever occurs first. Coverage is automatically transferred to subsequent owners. This coverage exceeds the original warranty coverage provisions of your vehicle for this part" They say, "This is customer satisfaction program 07M08 which is being extended to owners of certain 2005 Model year F150, F Super Duty, Expedition, and Navigator Vehicles equipped with 5.4L 3Valve Engines." So, I think Ford has discovered a problem where injectors from a certain supplier stick in the open or closed position on some vehicles, so perhaps your dealer is trying to prevent the problem by proactively using injector cleaner... BTW, I've had zero problems with my injectors over the last 38,000 miles. I get 14 to 16 mpg city, and 17 to 19 mpg highway. 
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Replying to: mickeymouse2 (Dec 26, 2007 10:04 am) 1988 f150 XLT Lariat 50.l Auto 3 speed with overdrive fully loaded. It seems to me that this happened after i got stuck in the snow and almost overheated the motor. When this happened my temp gauge went up close to the redline and a litle dark blue smoke came up from the passenger side of the hood. I shut it down right away and waited about 20 minutes. The truck started up fine and seemed ok. This was two weeks after I put in a new water pump and radiator. I drove the truck for about a week when I decided to check the fluids, this is when I noticed oil floating at the top of my coolant tank. I checked the radiator and sure enough same thing. My oil pressure is a little lower than it should be but not much, my temp is good too. When I had the waterpump off the coolant was clean. I brought it home and parked it until I get it sorted out. Hope this helps.
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Replying to: papajay (Mar 22, 2007 4:06 pm) In addition, you can get the new cool backup-video-in-the-rear-view-mirror option that Ford is coming out with this year. Check it out here: http://www.youtube.com/watch?v=3duZVs7ARaU Good luck! |
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Replying to: slicknuggets (Dec 26, 2007 3:06 pm)
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Replying to: mickeymouse2 (Dec 26, 2007 5:32 pm)
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Replying to: slicknuggets (Dec 26, 2007 7:48 pm) You cut one of your heater hoses and put the tee in there at the cut with hose clamps. Unscrew the cap on the tee and connect your garden hose to it. Take your radiator cap off. Turn your garden hose on to desired flow. Start the engine and turn on your heater. Everything will flush out through your radiator cap you removed. Run the engine and your garden hose until crystal clear water is coming out of the radiator. Here's a hint. Turn your heater on full blast to clear that out also. If you have done your own water pump and radiator, you will breez through this. Connecting the tee take about 2 minuts. Run the car at least 10-15 minuts during the flush. When your all done, don't forget to put the cap back on the tee you installed, and the cap on the radiator. The flush kit has a deflector nossle that sticks into the opening of your radiator cap. This helps control the direction of the flow of water away from eloectrical components and the fan. Driving arround with just water for a while isn't going to hurt anything, your doing your test for the oil thing. You can add coolant later by draining the petcock or removing the lower hose. Drive it for a while and see if the oil comes back. If it does, repeat flush and bypass the oil cooler with an after market air cooled oil cooler. |
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