Ford F-150 - 1997-2003 :: Engine Vibrates Severely At Startup In The Morning For A Minute Or Two During Idle
Jun 4, 2014
2003 F150 5.4L Tow Package 140k miles... Had coils, all plugs/wires replaced two years ago due to vibe climbing hills. Now at startup in the morning for a minute or two during idle, the engine vibrates severely then subsides and runs fine rest of day. Doesn't do this every morning. Truck lives in FL. The issue is either temperature related or moisture related. Ford service has the truck presently and attempting to diagnose from an overnight stay. They already 'fixed' the problem last week by replacing #1 plug/wire and resetting the power control module (pcm) but two days later the problem came back. Tech said today that the plugs currently installed are Bosch (any issue with these plugs?)
2003 F150 5.4L 140k miles
2011 Expy 5.4L 44k miles
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1997 F150 4x4 210,000 4.6L Windsor 5 Speed. Engine totally rebuilt 15k ago (besides for timing chains and tensioners). No codes thrown.
This morning when i started my truck, it made a knocking sound (almost like metal slapping) that seemed to be coming from the bottom end of the engine. At first I thought it was a spun bearing, but then the sound went away after a minute or 2. I have Google'd the problem, and have found a few diagnoses such as: oil draining back from the filter (or something like that), or an exhaust manifold leak that stops when the metal warms up and expands, or even the starter motor not being aligned right and not disengaging properly...
This is the first time this truck has ever done this. I changed the oil and filter about 1000 miles ago with 10w-30 oil and I believe a WIX filter. Also, this is the first time using the WIX filter
The weather this morning was around 51*F, so not too cold (to me).
Also, a few weeks ago when I changed my oil, I noticed milky white stuff only on the bottom of the oil cap, and in the feed neck. The rest of my oil looked like perfect used oil. After I noticed the milky stuff, about 2-3 times a week I would clean the stuff out of the neck and off of the cap. Just recently, there hasn't been as much milky fluid. My coolant level has not changed since I marked it during the oil change. A few buddies have said it might be condensation, but it's never been like this before.
I guess my question is, is this something that could put my truck out of service if left untreated? I'm assuming it's not a spun bearing because the noise goes away, but is there a possibility coolant could be leaking into the case but stay the same level in the reservoir?
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I have here a 2001 3/4 ton Suburban. It arrived last fall with 280K miles and a 6.0L V8 that was on its last leg (low to no oil pressure). I dropped in a 5.3L that I had handy, and had been happily driving it throughout the brutal Minnesota winter.
A couple months ago I noticed an issue developing. After a cold start, the engine would be severely lacking in torque for the first minute or so of driving. You could reach any RPM you wished, but the truck could barely accelerate. Once a minute or so had passed in this fashion, the issue would suddenly disappear... you'd be thrown back in your seat a bit if still attempting to accelerate, and the truck would take off. For the remainder of the trip, things would be fine.
Recently I went to drive the truck after it had sat for some weeks. It started fine, but the issue was now more persistent. When trying to accelerate, the gutlessness would continue for a good 15-20 seconds until finally and suddenly disappearing. Let off the gas, wait a moment, try to accelerate again, and it was the same thing all over again. Eventually I also noticed very obvious stumbling/missing when trying to get moving from a dead stop. Idle remained smooth.
The plugs and wires are only a few months old. The fuel filter is new. I checked for vacuum leaks (none that I could find). Fuel pressure is consistently around 50psi, even while the issue is happening.
The MIL was not on. I checked with my scantool, and found that P0101C was set, with P0101 pending. Visually examined the MAF harness and sensor; all looked fine. Swapped in a used working MAF; no change. (I suspect these codes may be due to the fact that I'm running a 5.3 with a stock, unmodified 6.0 PCM.)
My scantool is a Genisys running System 2.0. I'm by no means an expert with it, but I did know enough to try watching the miss counts while the symptom occurred. All cylinders seemed to be missing equally as much as the others, more or less.
Normally I'd be suspecting the fuel pump and/or associated wiring was going bad, but the pressure seems fine. What I might be missing?
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I've got a 1997 Honda CRV. Recently when you start it up in the morning there is a terrible clatter coming from the engine. Yet, once the car warms up, the clatter totally subsides and the car runs and drives normally. Turn the car off and then start it again, the clatter comes back - but then in a minute or so the clatter is gone and all is well. I've checked the fan area and belts - nothing is caught in there. Seems like the sound is coming more from the engine. Can't figure it out. By the way - did I mention that the car now has 338,000 miles on the odometer? Other than that, the car runs fine. Is it time to give up the ghost?
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I've got a 2003 ford f-150 with a 4.6l 150000 miles. when it is started the rpms are at 2000 for about a min. and a half then it drops to normal when its started cold. when started at operating temp. The rpms are at 2000 for about 30 to 45 sec then drop to normal. The iac, upper and lower intake gaskets, intake run controller valve, dfbe, low intake and shield, coolant temp. sensor, intake air temp. sensor, egr, egr regulator valve, maf, ecm have all been swapped out no vacuum leaks all line in good condition tps voltage reading of 0.84v...
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I have a '99 F150 w/ the 5.4 and 4R70W, with 226K miles. I am experiencing what I believe is a TC shudder after the tranny shifts into OD between approximately 40-50mph. This sounds like a pretty common problem with this particular tranny, but some of what I've read describes the shudder as feeling akin to driving over rumblestrips, but what I'm experiencing is a very sharp, bucking. Is this how the TC shudder feels, or am I actually dealing with a misfire. Btw, I did completely change the tranny fluid with Mercon V, and added a friction modifier, but no change. I also read that the TC unlocks when the brake lights come on, so I tried lightly hitting the brakes when the bucking was occuring, but it continued.
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97 f250 4.6l engine pegs the temp gauge after start-up. the oil pressure light comes on then after a few miles down the road anti-freeze blows out the pressure cap (15LB) then the temp goes down ,the oil light goes off and everything is normal. no its not the thermostat, i changed that and it still does it. whats up with that?
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We have a 2002 F-150 4.6L 4x4. The engine went bad and we bought a new engine (remanned ATK). Had this engine installed and a year later it was bad and was determined it was a manufacturer defect so they sent a replacement engine under warranty.
We had this new engine installed. The mechanic fired it up and it backfired through the intake. They claim that the compression is good, the fuel pressure is good, and the timing is correct. Can they check these things when the truck is not running? The mechanic is completely frustrated with the situation...
Everything I read leads to a timing issue but they say they checked it so before I go in there screaming I want to make sure it couldn't possibly be anything else...
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I have a 98 F150 Supercab 4x4 with 4.6 and an auto trans. I have 107,000 miles on the truck. Recently developed a engine "tick". Upon start up the "tick" is very noticeable. Seems to go away after its been driven a few miles and everything comes up to operating temp. I have checked the exhaust manifolds, all studs and nuts are still there. There are no noticeable holes that I could feel in the manifolds. Read some other posts here that have the "tick under load". Mine goes away once everything warms up. What to look at or for?
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What causes elevated engine idle when cold or initial startup? Asking another way, what would cause it not to have the elevated idle on start up?
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I have a 2001 Toyota Camry with only 56,000 miles on it and I have noticed that the engine has been very sluggish on start-up first thing in the morning. This happens only when the weather gets cooler and is worst in winter. Warm weather, no problem. After I back out the driveway, I have to step on the accelerator 2-3 times before the car will go forward. The engine sounds like it's straining. After initial start-up, no problem. Now, lately I have begun seeing blue smoke coming from the exhaust . . . again only on initial start-up in the morning.
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I've got a 2003 f150 with the 5.4 and 128,000 miles with an engine tick. Its not an exhaust leak I know that for sure. It has came up in the last 20,000 miles. I've used motorcraft 5 20 w/ motorcraft filter. I've tried a kreen engine treatment with no change. Heres the description/syptoms:
-Slight clatter for 2-3 seconds upon cold startup (happens very rarely)
-top end ticking that is loudest and most noticable when warm (quieter when motors cold)
-not timing chains/tensioners etc because the noise is coming from the top end and most noticeable on the passenger side.
-at idle the tick is present-when you rev at idle, the noise goes away.
-Driving (or having the engine under any load for that matter) the noise gets louder.
-Anytime I accelerate, tow/haul, go up an incline the noise gets worse
-Sounds like a "whirring" sound from within the dash.
With all that said I am thinking the lash adjusters are getting noisy. I had a certified gm tech that has 40 yrs mechanic experience under his belt and builds prostreet muscle cars on the side look at it. He listened to it to it and that was his diagnosis as well as its not that bad so just live with it. The noise at idle doesn't bother me, its when im driving with the windows down. The noise drives me crazy and is a little annoying to me.
Heres a link to a video of the sound and keep in mind it is much louder now : Triton engine noise/tick - YouTube
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My 1997 ford f150 4.6 triton runs hot after 1 minute of idling. I changed the two coolant sensors, flushed the radiator, and changed the thermostat. I also went to have a diagnostic done at two different places and nether one could get a reading....
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I have a 01 f150 with the 5.4. when it starts it takes a minute or two to do so.. After I shut it off and try to restart it won't unless I turn the key on and wait. I checked the pressure and when idling its running about 28 soon as the key is turned off it goes to 0. Is my pump bad??
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I am Hearing a series of 5 one second tones about 1 minute after starting. There is no indication on the dash that anything is wrong. There are five tones about one second long. They repeat five times and then stop. The truck appears to be running fine. What is this?
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Have a 2001 F150 5.4L Super Crew that hates temps below 50 degrees. It has new O2 sensors on the pass side banks, Map and Air charge temp sensors as well as a new IAC motor and a fuel pressure regulator. I've went though all the vacuum lines and replace the cracked dry ones as well a checked for vacuum leaks.
On initial start up, the truck will run and idle fine. after a minute or so, the rpm will fluctuate radically from 500 to 900 RPM. When driving, and you come to a stop sign, the engine will do the same almost seeming to stall. Once the engine reaches full operating temperature, then it runs fine. It always seems to throw P0171 / P0174 when it does this.
We've sprayed all around the intake and cannot find a leak anywhere. I do find it odd that this is a temperature related issue based on the engine operating temperature and the air temp in general. 50 degrees seems to be the turning point from running to just being a hand full until it warms up.
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My 1997 f150 4.2L 2 wheel drive truck has been running rough only in the morning. In the last year I have changed the plugs, wires etc. As soon as I start the truck and attempt to drive, it is very hesitant, runs rough etc., but if I only give it a little gas and not push it - the truck will run fine. This will only last about 45 seconds and then it runs normal for the rest of the day. I do not have original FORD sparkplugs and someone told me that might be why. I spoke to a mechanic (did not work for Ford) and he told me it wouldn't make a difference.
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My 2000 f150 with a 4.6 and just about 200,000 miles stumbled for a minute then died, no engine light came on. It wanted to restart and almost did a couple time's but no go. which leads me to believe it has spark. after about a 30min cool down it started and ran fine like nothing ever happened. Got me home. then the next day same thing died and started after it cooled. Has done this a few time's.
I had put a cheap O'riely fuel pump in it a couple years ago. but i hear if you run your gas tank low on gas a lot (which I do) the pump can get hot and you can toast it. Does the fuel pump is the issue or could i have another problem. And BTW in the past year I have cleaned the EGR port's on the throttle body, put a new egr valve, and fuel filter. And i checked the fuel pressure to had 40...
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I have noticed thru the cold months after I start my 2001 F250 7.3L 4X4 after it sits about a minute "warming up" that it goes into a high idle. The high idle will stop once I press the brakes. Is this normal?
I think this is a unrelated issue, but just started over the weekend. Was riding home, and pressed my brakes and the pedal moved almost to the floor. Not normal conditions for my truck. Usually the pedal is very stiff. I have noticed that my power steering pump has had a hum for months. I changed the fluid (ATF Mercon) within the last 6k miles and that calmed it down a bit.
After the pedal went to the floor, the hum seemed to quieten down even more. The power steering still works and the reservoir has adequate fluid and so does the brake fluid reservoir. I haven't noticed any leaks around the truck. I'm going to bleed the brake in an hour or so. The brakes pedal seems stiff when I press it after the high idle, but then it gets soft after a pump or two.
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just curious if this is normal? My trucks been vibrating when I drive it and my mechanic says it's normal
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F150 2001 265,000 Super crew 5.4 Fuel Injection ... Runs great. Good gas mileage. Outstanding workhorse.
The problem only occurs on cold mornings. The engine turns over easily and fires right off. Most of the time it will idle fine without any throttle. Hower, the slightest pressure on the gas pedal that the rpm drops and the engine stalls. It starts right back up same problem.
I come back later in the day and it starts and runs fine with and without load. No codes and the the fuel pump, fuel filter, and been replaced--no change.
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