Ford F-150 - 1997-2003 :: 2001 - Occasional Knocking Noise Coming From Engine
Jul 22, 2012
I have a 2001 F150 4x4 4.6L Auto trans. 96,000 miles... I purchased it in Jan with 93,000. About a month ago it started making and occasional knocking noise coming from the engine, this noise was heard at idle in park and in drive. when I revved the motor it would go away but as the idle settle back down you could hear it again. the noise would go away as I was driving and come back with no rhyme or reason, I put a stethoscope on the engine and it seemed loudest under the oil pan. The oil gauge is up between 5/8 to 3/4. Fast forward to now, When I start it I hear a scraping almost grinding noise that resonated thru the cab it has the same intermittent characteristics. I think I am going to remove the serp belt, remove the trans inspection cover next and see what happens. Oh I did put a scan too on it, no codes but did notice 1 long term 02 sensor trim was staying around -.618 if I remember.
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New to owing a ford pickup. I bought a 2002 Ford F-150 lariat 4x4 as a project truck. I've always wanted a truck to mess around with, but once I got the truck home I noticed it had a knocking sound. It didn't sound like it came from the top of the engine so I checked the muffler first and found it had a 3" slit in it. I replaced it but the sound remains. I heard it could be lifters? Is that something I should mess with or not?
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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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2001 F150 SCAB with 74,000 miles. There seems to be a whistling noise coming from the front axle. It is definately a rolling noise. I can shift into neutral and put it in 4H and still have the noise. Brakes are good, tires are fair... I just rotated my tires (criss-crossed front to back) also sprayed all of my boots with silicone spray. Still has a whistling metal to metal bearing sound. When I have the front jacked up and spin the wheels, there seems to be a decent drag turning by hand. I don't remember having much of a drag before.
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2001 f150 xl with 151800 miles 5.4l had it for a few years now I get a humming type groaning coming from up front. only when in 4x4 and only at lets say 25 mph to 45 mph .seems to be worse when slowing down especially the slower you get then around 20 or 25 its gone. it is still quite noticeable on acceleration and after 45 its gone. Truck has always been a little noise while in 4x4 weather it was an issue that had already started or if that's how it is. This is my first 4x4 truck.
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I have a 2003 F-150 4.6 4X4. I had a knocking sound that sounded like a rod knocking but was coming from the bell housing. After some research, I found that it could be a cracked flex plate or bad torque converter. I bought and installed a new torque converter with no change. The flex plate didn't appear to have any damage but went ahead and replaced it with the same results. I actually started the engine by jumping the starter (with no transmission) and the sound was coming from the flex plate/dust cover. My question is do I need the dust cover? Or is it a bearing or something else inside the engine causing the flex plate to hit the dust cover?
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Hearing a "metallic knocking"-like sound coming from the pillar-area behind the driver and/or passenger seats? See this thread: [URL] ....
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I drive a 2002 F-150 (4.2L) with 150K miles. A noise similar to the belts slipping started up the other day but stopped when I drove the truck for a short distance. So I thought slipping belts was the problem but the noise started up again even after driving several miles. The noise only comes on intermittently and not all the time. In fact, it never comes on when a mechanic is looking at it so they think I am hearing things.
I had the belt changed out and the mechanic said he thought the water pump was going out. So I had that changed out. He had the alternator checked out and it was good. The truck runs fine but the noise still comes and goes. It sounds like a high pitch vibration or like something is rubbing against something else but only periodically. What it could be?
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I own a 1999 F-150 V6 4.2 and would like solving what sounds to be a chirping noise coming from the engine. Noise is pretty consistent at which occurs at first startup while in park, drive or reverse and definitely every time I hit the gas from a standstill. The noise is pretty faint but bothers me just enough to where I want to ask the experts. Anyway noise began roughly days after I washed down the motor. I sprayed some degreaser on it and was very careful - making sure to cover the fuse box, alternator and high flow k&n intake air filter.
I stayed away from cables and just used a garden hose. Recently I had the lower idle pulley bearings replaced, serpentine belt and alternator. When I took to Ford for a new belt (it was old) and to inspect the chirping noise, they said # 6 spark plug was loose and that was the reason for the chirp (they called it a ticking noise). First of all how does a spark plug just come loose? They hand tightened it back and I drove the truck for less than a week then the noise was back. Any possibility this sounds like something specific that is wrong? My research says that it could be anything from the belt tensioner to the cam sychronizer to the heat shield around the cat converter.
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I am having trouble with my 2001 F-150. Starting yesterday it would not start. At 1st i thought it wa the battery, so i took it off, charged it, put it back in the truck and still no start. There is a clicking noise coming from a relay in the cabin fuse box, disconnected the battery, removed relay to inspect and everything looks good. After plugging it back in, and connecting the battery, the truck still wont start and there is a clicking sound coming from the dash near the radio. Rhis is my work vehicle!!!
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I have a 2001 5.4 V8 with 55K miles and the tow package. On acceleration the engine makes a ticking noise. Engine seems to run fine, no misfire.
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I'm wondering what is going on with my 2001 F-150's 5.4L Triton engine. Recently it's been making this noise that I can best describe as a "rattle" from the passenger side of the engine. It's not a constant rattle, it comes and goes every few seconds.
It sounds like it's either from the valve cover or timing cover, so I was thinking maybe it's the feared Cam Phaser failure, however the noise doesn't seem to match what I've heard from other videos of confirmed Cam Phaser failures.
I've attached a link to a video of the noise that I made. It also has a lifter tap from the opposite side of the engine that may be noticeable in the video. It has been present since I bought the truck two years ago, it hasn't gotten any worse and it isn't what I'm concerned about.
Video link : [URL] ....
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Recently, I was stopped in my 03 F-150 with 124,000 miles. All of the sudden one day, the engine started knocking. The knocking was coming from lower in the engine. After sitting for about two hours, I started it again. At first, no knocking, then intermittent knocking, then steady and after about 3 or 4 min, the knocking stops all together. Oil level has always been checked and it has never run low on oil. What on earth causes an intermittent knock?
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2001 F-150 4.2L automatic, 189k mikes. Gas pedal would do weird knocking/vibrating. It would do it at idle & under acceleration. Gas pedal would knock & sometimes slightly move or kick back at you. Felt like someone was lightly hitting it with a small hammer. Well there is not much to the gas pedal assembly; pedal, throttle cable & mounting bolts/plate. Looking under hood, a bracket from drivers side of motor was pushing back against firewall, which was pushing into gas pedal mounting bolts. I grabbed the bracket & it came off motor. Nothing else attached to bracket. Looks like it rusted off and was pinned between motor & firewall. Well, this fixed the gas pedal problems. But now i wonder what the bracket is & whats it suppose to hold??
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I have had a noise in the front of the engine of my 2002 f150 4.6 for about 2 weeks. On my way home my oil light came on made a knocking noise and shut off. The engine would not start back starter would engage but not turn motor it was seized. i called a tow truck and had it towed home. The next day just out of curiosity I tried to start it. It fired up ran and built oil pressure. If the oil pump froze will that make it . Can the oil pump make the engine act seized up?
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The knocking started very suddenly 2 days ago - but not after any unusual events, other work etc. Truck has 145 K, and otherwise starts & runs perfectly. Doesn't use oil.
I heard it from in the cab, windows closed. At first, thought it may be a rod bearing - but if so, not terribly loud. Didn't drive it any more after getting home. But starting it in the drive, the knocking was audible.
Then I discovered it * completely disappeared * several times, after shutting off engine, then restart a few seconds later. When that happens, absolutely no knocking at idle or reeving it up a bit. But it may return on the next 1 or 2 restarts, then disappear again.
Since the knocking * completely stopped * on some restarts, does that rule out a bad rod or main bearing?
I haven't seen oil gauge pressure fluctuation, whether it's knocking or not. The gauge is where it's always been - well above 1/2 way. But, the gauge also doesn't move when I rev it to around 2000 RPM (? may be normal not to move, after engine's already running?). When the knocking is happening, increasing RPMs also increases the knocking frequency.
Can't hear the knocking from top side of engine w/ hood open - even using rubber hose to my ear & moving it around. But (when) it knocks, can easily hear it inside the cab or under the truck.
From underneath, knocking is more in the center of truck, near the back of block / oil pan or tranny bell housing. I can't isolate the noise as more on one side of the block than the other.
Could the oil pump itself be making a knocking noise? The knocking is "similar to" a rod knocking, but doesn't seem quite as "hammer on metal" metallic.
There are no DTCs showing on my scanner. Only odd thing was, for "O2 Monitor Test," it showed "vehicle did not return data for any O2 monitor test." Though under the scanner "I/M Monitors," it shows O2 Sens Mon. "OK," and O2 Sens Htr "OK."
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I have a 2001 ford ranger 2.5 and a standard 5 speed. Its been knocking for a while now and recently its made a much lower tone knock, I am thinking I may have thrown a bearing. Also I am wondering what other engines I can use, besides the 2.5.....
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My 2004 Santy 3.5L (I am the original owner) just turned 91.4K miles and all of a sudden a VERY LOUD Engine Knocking sound came from the top of the engine. I have been changing my own oil since new with synthetic Mobil 1 and a new filter every time, and I never had any issues. I changed it last week at 90K prior a Spring Break trip (1350 miles).
Then yesterday after I let her rest for 1 day, I took the kids to school and within 10 miles of my house the ticking HARD loud noise started happening. I pulled over near a shop (within 1 block of where the noise started) and they said...don't drive it it sounds like a lifter collapsed, or a rod bearing or something big...
I had her towed to the dealer and the first thing they told me is to gather all the oil change receipts and a "manifesto" and they asked me how often I change the oil... I said every 5K miles. I change my own oil and have done since day 1.
BTW, Timing Belt, Water Pump, tensioners, belts, coolant, spark plugs and coils were changed last year at 77K miles.
The car should still be covered under the 10year/100K Powertrain and I believe they are trying to build a case so Hyundai can cover this or not...
They still need to tell me what's wrong... I change my own oil so I don't have receipts for "oil changes" and I have a log of when oil was changed...
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I dropped my car(2003 explorer XLS) for a brake pad work at an auto shop. but when I went to pick it up, the engine made big knocking noise when starting. the mechanic told me seems the engine having problem. he was shock too because he admitted the car was fine when I dropped it.
He didn't do anything except the brake work and top of some oil(I told him to check the coolant and oil level). I towed it to dealer and was told the engine is bad, I need a new engine. he didn't give exact diagnosis, said that will cost more than $900. he also said the mechanic seems didn't do anything wrong.
The car doesn't show any other symptom except the noise, what might be the problem? I want to try whatever I can before rebuild the engine.
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Few days ago I noticed the noise coming from the engine.
Went to dealership. They removed the oil pan and found metal shavings there .The car has 90,000 miles. They will put a new short block (will be covered by warranty ).
Since they basicaly will disassemble the whole engine, I thought to ask them to replace also drive belts, timing chain tensioner, not sure if the short block comes with the water pump , will ask them . W
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2005 V8 TREG 74,000 miles ... Just last week.... My T-reg started to hear this knocking noise which seems to come from the engine on the driver side... I would say lifter sound but hoping that's not the issue. I do notice that when i start the car, no noise but when driven on the highway... I hear it especially when i come off the highway. On regular street drives, it takes a while for the noise to come up. I've had the Treg for about a year now and havent had any problems but this. I drive the car during the weekends and sometimes during the week.
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