Ford F-150 - 1997-2003 :: Loud Knocking At The Passenger Side Valve Cover - Camshaft Not Getting Oil


Aug 3, 2010

I have a 98 F-150 which has a loud knocking at the passenger side valve cover. I am not a mechanic but thought it was a rocker arm knocking. I dropped some oil from the oil pan and did not see and metal shavings. I added some mystery oil but the knocking continued.Loaded the truck on a trailer and hauled to a mechanic to check for the problem. He said the oil ports are clogged and oil can not get to the cam shaft and the cam shaft bearings are probably causing the knocking. He said there is no way to fix this problem and I will have to replace the motor.

I called another mechanic and described what the other mechanic described. The 2nd mechanic said it would require a complete tear down of the motor and would be cheaper to replace the motor. I recently bought this truck just to use for hunting and around town since it already has 198k miles on it.

Is there any way to clean the gunk from the oil ports? The truck will still run but just has the loud knocking so I don't let it run for more that a couple minutes. I have been reading many opinions for sludge blocking the oil passages and am considering removing the valve cover gasket and filling with diesel and let sit for 24 hours then repeat then put in fresh oil and filter. Maybe this will clean the blocked passages.

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Ford Super Duty (1999-2016) :: 2003 F250 V10 - Inconsistent Tapping Coming From Passenger Side Valve Cover

I just bought myself a 2003 F250 XLT with the V10 in it. Low miles, not beat, 6 speed, very happy with it. I noticed today that there was an inconsistent tapping coming from the passenger side valve cover. I searched online and was pointed towards the PCV baffle. I pulled the breather hose off and stuck my finger in the hole, and the baffle is indeed detached. Now I know that I need to pull the valve cover now to at least remove the baffle; is there anyway to reattach the baffle, or do I need to buy a new valve cover?

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My girlfriends 06 Sonata 4cyl threw a p0011 code a week or so ago. I looked online and saw that it could be dirty oil so I immediately changed it (it was about 400 miles overdue at that point). I also looked on the forums here and was referred to a thread that suggested replacing the oil control valve. My girlfriend drove to work a few times before I fixed it (maybe a 100 miles total) and the car stalled out in the middle of an intersection. I then replaced the OCV and to my discontent the problem was still very present. Very loud knocking or clanking under the valve cover and sluggish idle. Her mechanic now says that it is a job for a hyundai dealership and that it could be something as bad as a head or engine rebuild. What the problem could be?

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Ford Super Duty (1999-2016) :: Loud Knocking Noise Coming From Left Valve Cover Area Occasionally

I just picked up a 2001 F350 with the 5.4L with 200k miles. When I test drove the thing the engine sounded fine. I got it home and noticed that it occasionally has a loud knocking noise that is coming from the Left Valve cover area. It sounds like an old Chevy 6.5L Diesel ...

It comes and goes, Hot or Cold. It seems like it usually goes away when driving with RPMs above 1500 or so, however I took off with it yesterday and the noise would not go away, it seems like it might be low on power when the noise comes on, but then again it always feels low on power, so who knows.
I have changed the plugs, oil, and verified there are no exhaust leaks at the manifolds.

Here is a video of the noise: YouTube....

I dont think it is the timing chain, as it seems like its coming more from the center of the cover, when placing my hand on the cover near the timing set there is no vibration or anything that would lead me to believe its the chain.

All of my searching so far turns up 3V stuff, and little info on the 2V engines. The valve cover looks like a nightmare to get off, who have to work on these things (including me).

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Fel-Pro and MAHLE Original.

Any comments, preferences, anecdotes? I don't want to do this job twice.

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Ford F-150 - 1997-2003 :: 2001 - Bad Valve On Passenger Side - Oil Leak At The Rear Of Engine

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Prius (2004-09) :: Camshaft Gear And Valve Cover Need To Be Replaced / CEL Came On

Yesterday the check engine light came on in my 2006 Prius. I took it to the dealer, and they said that the camshaft gear and valve cover need to be replaced. Specifically, the diagnostic report says "P0011. Camshaft position A timing over. Advanced or system performance bank 1. Pin point check LED to CUV gear not switching."

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Golf IV / Jetta IV :: Camshaft Chain Hitting Against The Valve Cover

I know this isn't the usual ticking of the injectors and I believe it's to fast to be a lifter tapping. I believe it's the camshaft chain hitting against the valve cover. I took the valve cover off and the chain is still tensioned tightly so it makes me wonder what this could be..

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Ford Super Duty (1999-2016) :: 2000 F350 - Leaking Oil From A Bolt On Passenger Side Valve Cover

My 2000 f350 is leaking oil from a bolt on the passengers side valve cover. it is one of the bolts on top of the valve cover. Can I just remove the bolt and put a rubber washer under it or do I need a new valve cover?

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Ford F-150 - 1997-2003 :: Oil Leak - Valve Cover Gasket?

So, when I bought my truck, it leaked oil.....bad. It goes through around 2-3 quarts a week. I needed a vehicle, this one was cheap, so...I run it. Every other day, I put half a tank of gas and a couple quarts of oil in it. It leaks on the passenger side, right above the starter. I figured it was the valve cover gasket, and planned on changing it today. I saw a post about the "typical" head gasket oil leak, which sound suspiciously like what mine is doing. I have no oil in the coolant,or vice-versa.....

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Camry :: 2002 - Small Oil Leak On Rear Passenger Side Of Valve Cover

2002 Camry 4 cyl was leaking a small bit of oil on the rear passenger side of the valve cover - about directly behind where the timing chain is. I replaced the valve cover today, but noticed that there is still a small amount of oil leaking at the same spot. Is this a common problem with the '02 Camry? Or perhaps I have a valve cover problem?

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Ford F-150 - 1997-2003 :: Order Of Valve Cover Gasket Bolts?

i have a 2003 f150 xlt 5.4 4x4 truck i change the valve gasket cuz of a leak since it was off i paint both covers but forgot the order os bolts theirs long and short bolts can some one show me a drawing or how the order of bolts go on the both sides

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Ford F-150 (2004-2008) :: Loud Knocking Under Dash On Passenger Side

Truck-2005 F-150 XLT 5.4L ... Problem - Currently when my truck reaches a speed of 45mph+ there is a methodical knocking sound that comes from the passenger side dash. This sound is on the interior and comes from the far right corner of the dashboard.(almost as if someone is tapping with there finger every other second). There is no correlation with anything else being turned on or off that affects this sound.(i.e. air) It simply happens once I reach a certain speed and is not an outside noise. When I slow back down under 45 mph the knocking subsides.

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Jeep - Grandcherokee :: Knocking Noise Coming From The Valve Cover Area

My 1999 jeep grand Cherokee with 170000 miles with a straight line 6 cilinder has a knocking noise coming from the valve cover area. It is only present during a cold start and for about 2 to 3 minutes. Once it starts getting hot it stops. The engine runs fine it has lots of power and I do not have any other issues.

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Ford F-150 - 1997-2003 :: Loud Single Knocking Noise Coming From Behind The Dash When Turn Key On

The last couple days my truck (1997 f150 4.6l) has been having starting issues. At first it would just turn over and not start then the battery would die. So i bought a new battery and yesterday now its starts sometimes but when trying to start it while its ttuning over it stops then starts turning and starts up. Then i drive wherever I am going when i get back in to start there's nothing.

Its not turning over at all but when i turn the key there is a loud single knocking noise coming from behind the dash near the passenger floor vent. Actually there ate two noise from the same area, one when i initially trun the key and another when i release the key. But after just sitting there doing this it will finally turn over and start. What this is, there are no codes being thrown besides my dreaded P0401 which i cant seem to get rid of either. Ive changed every part that has to do with the egr system and cleaned the throttle body replaced vacuum lines and still the code.

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I've had this tapping in my engine for a few weeks now and I put it in drive then heard a huge bang from the front of my engine and then started making a very loud popping noise that almost sounded like air leaving the valve cover...

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Ford F-150 (2009-2014) :: 2013 FX4 - How To Remove Right Side Valve Cover To Replace Gasket

I have a 2013 FX4 with the 3.5 twin turbo engine. How to remove the right side valve cover to replace the gasket? I have loosened the perimeter bolts and was able to get it to move slightly but nothing more. I also removed the spark plugs thinking that they might be holding the tubes which are connected to the valve cover by round seals. I have not removed the seals since I was concerned that I might damage them. Do they need to come off? If so how do I do it? It's amazing how complicated this job is! Short of calling the dealer service, I have just about exhausted all my usual tech resources.

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Ford 6.0L Power Stroke Diesel :: 2004 - Oil Leak On Driver Side In Front Under Valve Cover?

I have an oil leak on a 04 f250 6.0 stock. It has 292000 miles on her. It started as a few drips on the pavement about the size of a quarter and now has escalated to a steady trickle. It's on the driver's side in front of engine running down the corner of the block and dripping off the oil pan. I pulled intake plenum and everything and I thought it was coming out of the valve cover but now it looks like its just under the valve cover. It looks like its coming out of the front corner of the head. Its wet there and looks wet around the glow plugs. I cant run it now as I've drained the oil and coolant. I don't have a gauge or anything and its plain stock.

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Ford 6.7L Power Stroke Diesel :: 2011 F250 - Oil Leak On Right Side Of Engine Above Valve Cover In The Middle

I have a oil leak that I can't seem to find it appears to be leaking down above the passenger side valve cover and then goes under the engine cover. I don't notice much oil in the valley. This is a 2011 f250 6.7 with 116000 miles on it. I have had no other problems with this truck. Could this be the turbo lines? I am on a RV trip several hundred miles from home so I have very limited tools. The leak doesn't appear to be bad at this point the valve cover is wet with a small drip but it's only in the middle. I just changed my oil prior to the trip when I noticed the leak. I did have a leak on the new filter but a new filter fixed that but still have this one higher up.

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Ford - Explorer :: 2003 - Valve Cover Oil Leak / Timing Chain Rattling

My 2003' Explorer XLT (4.0L V6) has an oil leak. I tracked it down to the passenger side, rear, bolt head on the valve cover (back by firewall). I took it to a guy who replaced the valve cover gaskets, but it is still leaking. He claimed when he had the cover off he looked for any cracks on it, but did not see any at the time.

Anyways, I was searching around and found several explorers leaking in or around the same area of the valve cover. And it turned out that there issue stemmed from bad timing chain guides, causing the valve cover to crack.

I do notice that on a cold start, I hear a rattling when I first start it up. It rattles for maybe that first 1-2 seconds when starting. Is this my timing chain rattling around? If that is the case, how much this could set a guy back on repairs?

I guess I don't know whether to just replace the valve cover, or if I should dig into it to see if the real issue is the timing chain guides/tensioner. Mileage is approximately 121,000....

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Ford 7.3L Power Stroke (1999-2003) :: Clean Out Valves Under Valve Cover?

doing injectors and pulled the valve cover, and noticed its not as clean as i expected. in the oil on top of injectors i noticed its got some grit in it. this cant be good and not sure how this debris got in there as i always change oil and air filter regularly( unless previous owner neglected). is there a safe way to clean this? Is this a normal find for you guys that have done injectors?

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