where is the oil pump located on my truck on 2004 Ford F-150

where is the oil pump located on a 2004 f150 4x4 5.4 liter engine?

by in Grapevine, TX on January 04, 2011
3 answers 10 comments
ANSWER by on January 04, 2011
it pays 15.4 hours to replace. the pump is around 100. it is very labor intensive. sorry. the pump is mounted or driven by the cranshaft on the nose of the crank. you have to remove the oil pan to gain acess to the pick up tube bolts which have to be removed to remvoe pump. Roy
ANSWER by on January 04, 2011
Question I have is: what makes you want to change your oil pump? I can't say I've seen many fail on the 5.4L.
COMMENT by on January 04, 2011
my oil pressure bottomed out then came back up, i pulled over and checked my oil level and it was fine. i started the truck back up and the pressure was good then it bottomed out again and the engine started tapping then the engine died. i restarted and the pressure was good and parked it real quick. do you think the pump is bad?
COMMENT by on January 04, 2011
Are you reading the gauge? The tapping and dying is concerning, but I would truly have a base oil pressure test done first, monitoring pressure for a little while.
COMMENT by on January 04, 2011
yes the oil guage reads zero, then normal then zero again and the engine starts making the noise only when the guage is at zero, then the fail safe kicks in and shuts the engine off
COMMENT by on January 05, 2011
Is this a manual gauge? If not, a manual gauge needs installed to check and verify.
COMMENT by on January 05, 2011
it is the manual guage on the truck, not a test guage
COMMENT by on January 05, 2011
OK, apologies for the confusion on my part. The main cause of intermittent oil pressure loss is a pick up screen that is getting debris into it. This is probably beacuse either bearings are worn and maybe one has spun (doubtful, since you'd have more noise), or aluminum / plastic from somewhere in the engine has gotten into the pan, and now is getting sucked into the pump screen. Dropping the oil pan will tell you what may be in there, and sure - you could replace the screen and/or pump, but the question is - where did the debris come from? The timing chain guides could be a source of debris, as well as cam journals in the cylinder heads... Have you had any other work done on this truck or engine recently?
COMMENT by on January 05, 2011
no other than brakes and tires i really havn't had to replace anything other than the alternator. i changed the oil and filter today and still didn't have any luck so im assuming it is in the oil pan and since it is 4x4 that is going to be a major chore
COMMENT by on January 05, 2011
Yeah, that's an ugly ordeal. I'm sorry you're going down this road. Good luck...
COMMENT by on January 05, 2011
thanks
ANSWER by on February 15, 2015
Curious what the person from grapevine Texas found out with his engine noise in his f150
COMMENT by on June 11, 2015
Guessing the same that I found. Timing chain guide crumbled and was sucked into the oil pick up screen. Noise was the timing chain banging on the cover due to slack from the variable timing not working. VCT needs oil pressure for the timing chain tensioners to function.