Ford F-150 (2004-2008) :: Oil Pressure Dropped All The Way Down?
Oct 19, 2014
My 2004 f 150 heritage 4.6 l the oil pressure dropped all the way down i was in a drive thru and it was clattering really bad so i pulled into the parking lot and shut it down pulled the stick plenty of oil i re started about 30 minutes later and it pumped oil pressure. So I started on my way home the gauge would go to normal and when I would touch the brakes and let off the gas it would drop and the oil light would come on and the engine would start rattling and would have no power, I would pull over and do it over again and finally i just called a tow truck.
So I changed the oil new motorcraft filter and 5/30 motor oil , it started up made all kind of noise but i got oil pressure and quieted down i went to drive it and as soon as it started to roll the pressure dropped and the oil light came on and it started to rattle again. Whats happening is the pump going out ? can it be replaced with out pulling the engine? the truck has 200,000 miles on it
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Same brush is in the cylinder. I lost a cleaning brush in the cylinder head and cant get it out. Im sick to my stomach. I had a small magenta but it wasn't strong enough to get it and any stronger wont fir thru the cylinder taper. Any suggestions besides taking it to a mechanic and pulling the head. Hers is a pic ......
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I'm working on my little brother's 2006 F-150 FX400 Crew Cab. Last night he lowered the front passenger half way down to talk to a friend. He then tried to put the window back up. The window very slowly went up 3/4 of the way then stopped, slowly started to lower, then dropped down into the door. He was only using the window switch on the driver's door and it was raining at the time. I saw a lot of issues posted about window regulators and motors but none that matched this.
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I have a 96 aerostar with just over 100,000 miles. Recently, after driving about an hour at highway speeds I noticed the oil pressure dropped to zero when I came to a stop in a rest area. I immediately shut the van off and checked the oil, which was full.
After restarting the engine, the oil pressure gauge read normal again so I proceeded on my way down the road keeping a close eye on the gauge. Within minutes the gauge started fluctuating from zero to normal several times and then dropped to zero and stayed there. It sounded like I was getting some top end clacking (may have been my imagination) so I shut off the engine while driving and restarted it and the pressure gauge started reading normal again.
I drove to the next exit and figured it must be the sending unit acting up, so I checked the wiring at the unit for a possible loose connection and finished my 150 mile trip with no further issues with the oil pressure gauge. I have run the van locally on short trips but I am afraid of making any long distance runs without knowing for sure if it was the sending unit or perhaps another more serious problem.
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I recently installed a glow shift fuel pressure gauge. All seems good.
@ idle 58-60 psi
@ WOT drops to 50 psi, no less.
Tonight I went to catch up to a car that had no lights on at all to tell them and during WOT fuel pressure gauge showed it dropped to less than 30! I let off immediately and it went right back up. I tried to repeat it with another go @ WOT and it would not go under 50 psi like normal.
Motorcraft fuel filters less than 3000 miles ago .. Blue spring installed over the winter.
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So I went to start my truck this am. Fired up fine. Put it in drive and the check advance track light came on, 2 minutes later the oil pressure dropped to zero and truck quit at the same time. Checked oil and it was good, repeated same process 3 times. I just let it idle for ten minutes then it was fine.
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Ok. So. 2005 excursion v10 270k miles. Never ever had an issue starting. Today it was about 30 degrees in Detroit. Had to crank for about 4 seconds. Usually it turns over within one second of cranking. So I get to work and hook up a fuel pressure tester to it. Got to 35psi while running, upon shutting off it dropped to 0 within 30 seconds. I have no codes. And absolutely no drive ability issues. No gas smell. And I'm really hoping its just z fuel pump check valve cause then I can just prime it by doing key on key off then crank...also hoping not injector cause I won't be able to pull the injectors till Sunday snd I really don't wanna hydro lock my motor >.< best way to test injector/fuel pump valve? I like to fix issues as soon as they pop up. Wanna get my v10 to 400k.
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Well, I was cruising down the highway @70MPH and notice the fuel pressure gauge dropped down to 50 then back to 65. Kept watching the gauge and it would swing back and forth from 55 to 65.
Got off the highway. Nailed it at the light and watched the gauge drop to 53 and swing back to 65. Fuel pressure is not steady either. It swings back and forth from 52 to 65. Thinking the pump is on its her last legs? Truck got 194K on her.
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2002 7.3 powerstroke, no info about service or work done, looks to have a new hpop, know for sure that there was a new lpop installed, claims no gouging in front cover, died going down road oil pressure gauge on dash dropped and was taken to a shop and did not get complete diagnosis, where should i start? Shop drained oil to take sample and no metal shavings or flakes were present according to them...
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I have a 1999 Chevy Blazer LS 4WD 95K miles that had an incident in 2008 where the oil pressure dropped to zero while driving down the highway. I immediately pulled over and had the vehicle towed to a dealership. They pulled the oil pan off and let me know the lower part of the motor was "toast." (crankshaft had turned blue due to heat from no oil.) Mysteriously it has oil pressure now, why that is. It started last time I tried about 4 years ago.
I dearly loved this vehicle. It was first car I bought and paid for myself and I planned on repairing it one day. It's been sitting in My garage for the last 8 years. Recently, my daily driver died and I was faced with repairing the Blazer or buying a new vehicle. Since I don't know how well the Blazer has fared sitting in the garage all these years, I decided repair wasn't worth it at this time for a vehicle I needed to be dependable and I just bought a new vehicle.
So here's the thing. I kept the Blazer really clean. Washed it all the time, no damage, Regular oil changes, the works. It still smells like a new car inside. I really don't want to see it get crushed and I'd like to see it go to a good home. It might need more work than a new motor since it's been sitting so long, but I can't imagine it would be more than someone mechanically inclined could handle. I'd get a new engine, but I don't have the cash and I need the garage space.
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i have a 2005 F150 5.4L while driving my message board bell indicated low oil pressure i pulled into the station and checked oil. i had to add about 2 qts i filled up with gas and the truck has not started since. I towed it home changed the oil, filter, oil pressure sensor and the fuel filter
when i try to start it the engine turns over normal no noises, knocking or anything out of the ordinary. It sounds like it wants to start but then acts like something is shutting the fuel pump down. I had the local mechanic tell me that the fuel pump was out. I can here the fuel pump kick on for no more than 2 seconds then shuts off. he told me it should pump for about 5 to 10 seconds. i am not convinced it is the fuel pump dont want to spend $300 on something i dont need.
is there a saftey cut off swith to the fuel pump when the low oil pressure indicator comes on? i also check the codes and its not giving any codes but i had removed the battery and replaced it and i am thinking that removed the codes?
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Is there a port I can hook a mechanical oil pressure gauge to for checking my oil pressure.
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2004 Lariat. Ford F150, 5.4 Triton. Whenever I slow down, stop, or turn my truck will read low oil pressure, then all my gauges drops and it stalls out. I've taken it to my mechanic twice now. And twice he's replaced two sensors. Today I took it to Wal-Mart for an oil change and they said its probably why my check engine light is on code, T19. I've had that light on for 4 years now and this stalling out problem starts 3 months ago. So far its had regular oil changes, new air filter, two new sensors and im scraping money to throw at it. Hitting snow banks, other vehicles, and tree's... need to find the real problem before I go broke or worst kill someone in an accident.
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I upgraded my 2007 f150 xl from 17" hankook tires to 18" michelins....problem is the low tire pressure light has come on and wont go off....Ive checked the tire pressure and all are equal... how to turn this light off, or what may be the problem?
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I have been having quite a rough time fixing a P0345 code on my 06 F-150 w/5.4 w/85,000. This truck has gone to a Ford dealer every 5K for the oil change/checkup etc.
Long and short - P0345 Code @ approx 83,500 miles, rough idle once the engine was up to temp and it would clear if you bumped the skinny pedal.
I have replaced the following:
--Both Cam Phasers
--Both VCT Solenoids (they both had holes in the screens - see this post [URL] ....
--Passenger side Cam Position sensor (I broke it pulling it out to do phaser swap)
--Spark plugs - SP515's
Issue was still present so then I replaced:
--Complete Timing chain set (Chains,Gear, Guides and Tensioners) - Drivers (left) side tensioner collapsed.
Once all back together and running the code is still there so I finally installed a REAL electric oil pressure gauge. Turns out I only have about 15psi at hot idle and 50psi when driving etc.
I am at wits end, because at this point I would have to guess that the engine is junk... Either a bearing is shot or whatever... Do I take the 3-4 hours to drop the pan to potentially see what is going on? Or just drop some 15W40 in the engine and trade it in?
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Do the tensioners have an O-ring where they mount to the block? I read a lot about blown tensioner seals...are people talking about the block to tensioner seal or the internal seal between tensioner body and plunger?
Also of course it makes sense to check oil pressure first with real gauge, but if the tensioner seals are toast, then one doesn't really get a good reading until they are replaced.
My dad has an 04 with 90k miles..throwing cam timing codes and you can hear the timing chains stupid noisy at idle. This just happened rather abruptly. Not like the engine oil pressure has been slowly going down due to wear, but like a tensioner seal has finally let go or possibly a guide.
I am thinking about checking the oil pressure before buying the timing components but then realized one truly doesn't know if the low oil pressure is due to blown seal or increased tolerances.
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I have a 2007 F150 Screw lariat and have swapped the factory 20" wheels for a set of18" FX4 wheels. Question is how do i get the light on the dash to go off?? I swapped these tires and wheels 2 weeks ago and never got a light.. now tonight I get a light? I don't know if the 18" have pressure sensors in them or not..Wouldn't I have gotten a light right away?
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I was driving when the truck made a terrible noise and while pulling over the check engine light went on as well as low oil pressure. I turned off truck and checked but no evidence of any leakage at all. Checked oil stick and was dry. Let sit for an hour and checked oil stick to find about 1/2" showing. Added oil to find that now it was overfull, drained oil back and stick showed proper level. Attempted to drive and it was fine until I came to a stop wherein it would stall with "low oil pressure" showing and check engine light on. Brought to shop and they said engine is very gunked up, they said they could try oil flush but probably will not work. They most likely will have to remove the valve cover and such to physically look at engine and take it from there... (I have always used type of oil stated on the cap, used synthetic and changed every 5-7k miles - showed diagnostic codes p0011, p0340, p0345 and p0021).
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I own a 2007 Lariat F150 with the 5.4 4x4. It has 96000 miles.
That being said. The other day I was driving and went through a pretty big mud hole on a county road (couldn't go around it). Following, very shortly, my truck bogged down and died. "Low Oil Pressure" popped up. I let it sit for a minute, and checked underneath to make sure that I hadn't popped a line or ripped something. I hadn't.
I start the truck up again, and started driving no issues, for about 3/4 of a mile, and again it died, and "LOP". So I let it sit for about 15 minutes, thinking about why it would have that pop up. Couldn't figure out anything. Started again. and had a really rough idle in between the 500-1500 RPM range.
I decided to change out the oil when I got home. I put in some 15-40, hoping that would solve the issue.
It hasn't still idles really rough, but won't shut down anymore. I didn't try driving it though because I was afraid it would die again.
I'm not sure if the spark plugs are bad, I don't think they've ever been changed (I know it's bad). I'm pretty sure that it's not a vacuum leak, but not 100%. I need this truck to run.
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My friend has an 08 4.6. He has replaced the thermostat with 3 different ones all with different temps, still nothing. Temp gauge reads normal but after driving it for a bit he can take off the radiator cap while it's running and not get sprayed in the face with coolant, almost like there is no pressure in the system.
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I have a 2004 FX4 4x4 ... Four wheel drive is not working!!!!! Turn the dash switch to 4High or 4Low and the lights come on in my dash gauge cluster. So my 4x4 lights come on as if the 4x4 is working but my front wheels do not turn. What I have done:
Drove the truck forward while I watched the front drive shaft going from the transfer case to the front differential. Did this in 2WD and then in 4WD high. While driving forward in 2WD the front drive shaft did not move. Once put into 4WD high and driven forward the front drive shaft was turning. I guess this tells me that my transfer case and shift motor are working?
I jacked up my driver side front wheel and turned the tire by hand while the truck was running in 2WD. The tire spun freely and the CV axle (half shaft) did not turn. Then turned 4x4 dash switch to 4WD high and turned the tire again by hand and the CV axle turned while turning the tire. I guess this indicates that the IWE actuator was working....I guess???
Repeated the process above for the front passenger side of the truck and the tire would always spin freely regardless if in 2WD or 4WD. I could not get the CV axle to turn while spinning the tire on the passenger side when the truck was running and switched to 4WD
I checked the vacuum solenoid near the battery mounted on the firewall. The vacuum line supplying vacuum to solenoid was working and pulling vacuum. I did a series of test in conjunction with the dashboard 4x4 selector and the Vacuum Solenoid seemed to be working properly.
Crawled under the truck while the engine was running and pulled the vacuum line off the nipples of each IWE Actuators (drive and passenger side) put my finger over the lines and felt decent vacuum at each end of each vacuum line.
So dash switch and 4x4 light works stays on solid and bright does not flicker
Vacuum solenoid and vacuum lines seem to be working
Transfer case and shift motor seem to be working
Driver side IWE actuator seems to work
Front passenger side Actuator does not seem to be working??? Why I am so confused about this is because in HOURS of Internet research it seems that this Actuator is not allowed to engage by vacuum pressure. When I disconnect the vacuum line to the passenger side actuator I expected to hub to lock, but it did not, the tire would turn but the CV axle wouldn't? If I replace the passenger side IWE actuator will this fix my four wheel drive? Or is there something else I am missing??
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