is oil pump out?
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Junior User
Joined: Jul 2005
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is oil pump out?
2006 5.4 145,000 miles
oil guage is the H / L
just picked truck up from body shop after wreck repair (back bumper only).
Sounds like no oil clack. checked on dip stick and it says near full, but guage says lowest of low (no pressure) and engine
light comes on low oil pressure.
so added 1 more qt of oil to see if any difference. the guage shot up to normal and back down to lowest of low.
for a minute it quieted down like it was getting oil.
anyone have ideas? is it possible oil pump settled debris and they were picked up and stopped up pickup to oil pump?
how big is job to change oil pump?
oil guage is the H / L
just picked truck up from body shop after wreck repair (back bumper only).
Sounds like no oil clack. checked on dip stick and it says near full, but guage says lowest of low (no pressure) and engine
light comes on low oil pressure.
so added 1 more qt of oil to see if any difference. the guage shot up to normal and back down to lowest of low.
for a minute it quieted down like it was getting oil.
anyone have ideas? is it possible oil pump settled debris and they were picked up and stopped up pickup to oil pump?
how big is job to change oil pump?
Tuned
Joined: Aug 2015
Posts: 474
Likes: 11
So your dipstick reads near full, then you added a quart? That's not good man.
Could be your oil sending unit not working, but if it's "clacking" then you have bigger problems. Not a bad idea to replace the sending unit and see if that fixes your gauge problem, they're like $15. Adding more oil will only make things worse.
Changing the oil pump is a big project. You have to remove everything from the front of the engine. Crank pulley, timing cover, timing chains, then you get to the pump. Same as replacing all of the timing components. Be prepared to spend some cash.
Could be your oil sending unit not working, but if it's "clacking" then you have bigger problems. Not a bad idea to replace the sending unit and see if that fixes your gauge problem, they're like $15. Adding more oil will only make things worse.
Changing the oil pump is a big project. You have to remove everything from the front of the engine. Crank pulley, timing cover, timing chains, then you get to the pump. Same as replacing all of the timing components. Be prepared to spend some cash.
Elder User
Joined: Aug 2018
Posts: 579
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From: Riverbank, CA.
$5 says your oil pick up screen is plugged with debris from your timing chain tensioner guides. Pull the oil pan and see if there is any debris in the pan or plugging the screen. If there is, you've probably sucked bits and fibers of the plastic into your CVT solenoids. Either way, you're probably going to be tearing the front of the motor apart to do a timing job. Don't forget to upgrade to a Melling HV360 oil pump while your at it.
FTE Community Team
Joined: Jan 2019
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$5 says your oil pick up screen is plugged with debris from your timing chain tensioner guides. Pull the oil pan and see if there is any debris in the pan or plugging the screen. If there is, you've probably sucked bits and fibers of the plastic into your CVT solenoids. Either way, you're probably going to be tearing the front of the motor apart to do a timing job. Don't forget to upgrade to a Melling HV360 oil pump while your at it.
Senior User
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From: Texas
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update by llh
drained oil and screened finding no debri. dropped pan and oil pump screen appears open and no debri in pan but lot of sludge in motor. wgat does everone think now?
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Senior User
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BAFX Products - Wireless Bluetooth OBD2 / OBDII Diagnostic Car Scanner & Reader Tool for Android Devices - Read / Clear Your Check Engine Light & So M
One of these works well for diagnostics. Not sure if it'll read oil pressure but member F150Torqued surely knows. This doesn't work with IOS/iPhone and You'll need to download an app called Torque Pro to connect to the reader/scanner. Post #2 suggested replacing the oil gauge sending unit which will help in process of elimination.
Does the truck run differently than before rear end incident?
One of these works well for diagnostics. Not sure if it'll read oil pressure but member F150Torqued surely knows. This doesn't work with IOS/iPhone and You'll need to download an app called Torque Pro to connect to the reader/scanner. Post #2 suggested replacing the oil gauge sending unit which will help in process of elimination.
Does the truck run differently than before rear end incident?
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Junior User
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update 2 llh
truck seemed the same except getting no oil at all. in the short time it picked up pressure (maybe 30 seconds) it ran the same as before. also we had to wait 2 weeks after accident to get fixed so i dont think its related. would i be able to see if debris were up in oil pump? you could definetly hear that it was not getting oil. and we seen in oil drain there was plenty of oil. if something did get up into oil pump could it be cleaned out?
Elder User
Joined: Aug 2018
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From: Riverbank, CA.
truck seemed the same except getting no oil at all. in the short time it picked up pressure (maybe 30 seconds) it ran the same as before. also we had to wait 2 weeks after accident to get fixed so i dont think its related. would i be able to see if debris were up in oil pump? you could definetly hear that it was not getting oil. and we seen in oil drain there was plenty of oil. if something did get up into oil pump could it be cleaned out?
Fleet Mechanic
Joined: Apr 2016
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You could have sludge blocking /or gaskets blown on chain tensioners dumping oil back into sump.Check your crank shaft end play and your valve train condition if too bad you need reman . Otherwise a complete clean out with full timing job .
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another update
Cleaned pan and screen looks clean also. decided to put good oil back in a see what it does. i thought it was fixed for about 20 minutes. it was pumping oil and sounded like it used to. all of a sudden the clack of no oil came back on, but for 20 minutes it was fine.Does this sound like an oil pump that works until it gets hot? trying to decide if truck is worth timing chain, oil pump etc, or reman motor or junking it. i am trying to get as much info as possible to make the decision..
Fleet Mechanic
Joined: Apr 2016
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You mentioned a lot of sludge . So since you saw oil pu clear I would consider trying a flush to clean it out . Run it for the 5 minutes and then let it sit overnight and drain/change oil and filter --use cheap oil and repeat if you get some oil pressure back . Seems you have a blockage ,I sincerely doubt if that type of oil pump is completely bad . Check your end play on crank that can do this, if excessive its reman time .
If you can recover from flush then run some marvel mystery oil /1 quart per crank all the time . Some say royal purple is a good cleaner . But if tensioner gasket opening up /you will have to pull timing cover . How is the rest of the truck ???
If you think of doing timing job then the flush will help .
If you can recover from flush then run some marvel mystery oil /1 quart per crank all the time . Some say royal purple is a good cleaner . But if tensioner gasket opening up /you will have to pull timing cover . How is the rest of the truck ???
If you think of doing timing job then the flush will help .
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todays update
the rest of truck is good. i bought it new. have rebuilt front end, new tires, ac good ,rear end good ,trans good, body good, replaced plugs and coils, was running fine before wreck.
something just doesnt seem right to me. when it was running there was no indication about timing chain... and oil pump went from 0 to normal and suddenly back to 0. am i mistaken to think an oil pump would not fail this way? i think you are correct of a blockage. but if the screen is clear where would the blockage be? also if timing ch gasket was bad would it hold for 10 to 20 minutes and then let go? the best explanation is that while it was sitting in the shop for the bumper that something (sludge) dried
up and created the clog. the next thing i am doing is the clean out . you suggested royal purple. is that one that would not ruin other parts of the engine? i would hate to make a mistake at this point. ,,,,,thanks for your information and suggestions,,,
something just doesnt seem right to me. when it was running there was no indication about timing chain... and oil pump went from 0 to normal and suddenly back to 0. am i mistaken to think an oil pump would not fail this way? i think you are correct of a blockage. but if the screen is clear where would the blockage be? also if timing ch gasket was bad would it hold for 10 to 20 minutes and then let go? the best explanation is that while it was sitting in the shop for the bumper that something (sludge) dried
up and created the clog. the next thing i am doing is the clean out . you suggested royal purple. is that one that would not ruin other parts of the engine? i would hate to make a mistake at this point. ,,,,,thanks for your information and suggestions,,,