i was changing my oil and looking around the motor and dicovered an oil leak on the drivers side, back of head. it looks as if it is coming from above the bottom of the head. it is a very minor leak but still wet. i could not see where it could be coming from. oh yeah...20k miles

 

There are several things that could be causing the leak. Take you truck in and have the tech put dye in the oil so that the leak can be properly traced and fixed.

 

I had same thing at about 10k and it was the glow plug connector. Dealer confirmed with dye and replaced buss bar. No more leak.

 

thanks...now just have to wait 3 weeks for an opening at the dealer

 

we have no waiting, where are you from??

could be several things, visual inspection and then add uv oil dye if you cannot visually tell..

 

wv, i know there is a wait because my dad had to make an appointment for his 7.3...
well it is right on the corner of the head but more on the rear side of the corner. and the oil looked clean

 

As others already posted:


The oilcould be coming from one of MANY places. You need to run it by the dealer and let them look at it. More than likely, they will add some dye to your oil, have you put a some miles on it with the dye, then have you bring it back in so they can locate it with a lamp.
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Generally almost all oilleaks end up running onto the rear of the motor, bell housing and transmission.

The most common leaks on the <?xml:namespace prefix = st1 ns = "urn:schemas-microsoft-com[img] /><st1:NumConv6p6 val=[/img]6.0</st1:NumConv6p6> are as follows in descending order of occurrence: (Notice the First for items comprise <st1:NumConv6p0 val="65" sch="1">65</st1:NumConv6p0>% of all reported leaks and are a simple fix.)


NOTE - this comes from a previous post from Blackhat<st1:NumConv6p0 val="620" sch="1">620</st1:NumConv6p0>

CAC Tubes = <st1:NumConv6p0 val="21" sch="1">21</st1:NumConv6p0>%
ICP Sensor = <st1:NumConv6p0 val="16" sch="1">16</st1:NumConv6p0>%
Glow Plug Harness = <st1:NumConv6p0 val="14" sch="1">14</st1:NumConv6p0>%
Cam/Crank Position Sensor =<st1:NumConv6p0 val="14" sch="1">14</st1:NumConv6p0>%
Front Crankshaft Seal = <st1:NumConv6p0 val="8" sch="1">8</st1:NumConv6p0>%
Upper to lower block seal (skirt) = <st1:NumConv6p0 val="5" sch="1">5</st1:NumConv6p0>%
HPOP cover = <st1:NumConv6p0 val="4" sch="1">4</st1:NumConv6p0>%
Oil Cooler (this leaks into engine coolant) = <st1:NumConv6p0 val="4" sch="1">4</st1:NumConv6p0>%
Front or Rear Engine Cover = <st1:NumConv6p0 val="3" sch="1">3</st1:NumConv6p0>%
Rear Crank Seal = <st1:NumConv6p0 val="3" sch="1">3</st1:NumConv6p0>%
Turbo Charger & VGT actuator = <st1:NumConv6p0 val="2" sch="1">2</st1:NumConv6p0>%
Covers (oil pan, valve covers, breather) = <st1:NumConv6p0 val="2" sch="1">2</st1:NumConv6p0>%
Cracked or Porous Block or Head = <st1:NumConv6p0 val="1" sch="1">1</st1:NumConv6p0>%
IPR valve/Engine Lube oil pump = <1%

ALSO -
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Great information site as well.