Ford F-150 (2004-2008) :: Engine Noise Under Mild Acceleration
Apr 28, 2012
I have a 2005 F150, 5.4 triton. I bought the truck used and it came with an Edge tuner. It's lifted with 35's.
Under mild acceleration I get a psst-psst-psst-psst-psst-psst type noise. Sounds almost like air... It only happens in drive when you get on the gas and put a load on the engine but not always. It doesn't seem to happen if you mash the pedal...
I can't seem to replicate this sound in the driveway. I've never heard this sound before.
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Over the past few months I've noticed that my truck has a very intermittent shudder under mild acceleration. If I accelerated more during the shudder it seemed to disappear until I let off the peddle a little. When it happens the truck doesn't seem to be lacking power and the engine throws no codes. It happened again today right as I had stopped at a red light. I noticed that it was shuddering at idle too. I shut the truck off at the intersection and the shudder was gone once restarted. What it may be?
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I got an 08 F150 2wd. I noticed lately a mild roaring noise coming from right front wheel, but it only does it when I'm turning left. There is nothing while driving straight or during right hand turns. Only happens during left hand turning.
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I noticed the problem today when I was driving to the store. I was going around 60 and went to pass a car. As soon as I hit the gas there is a popping noise coming from the engine compartment and it had no power. It only does it between 50-65 mph.
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I have a 2006 F150 with about 80k miles. It has a limited slip rear end. Under mild acceleration, "sometimes" there is a muted clunk at about 40-50mph. If I accelerate harder it does not happen. I cannot get it to happen at lower speeds. I cannot tell if its the transmission or rear end.
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I'm loving this 'new' 2004 prius with 177k miles on it that i just bought. In New England winters I'm still getting 40-45 mpg and I'm not even trying to get great MPG's.
1.) Wind noise : My biggest disappointment is excessive wind noise over 55 mph. I 'm using this car as a taxi and its so loud inside I'm a little embarrassed with customers in the car. It sounds to me that its coming from the passenger window or passenger side near the windshield, but I can not identify its location at all. I've always been the one driving when looking for it though.
I called a dealer that sells lots of gen II used prius's and he says its fairly common to replace the window seals? The car has a clean car fax.
2.) Mild clunk when the engine kicks on. Not all the time, but sometimes : Other thing is, I can sometimes feel and hear a mild clunk when the engine kicks on. I also feel a little bit if vibration when the engine is on and i'm idling (it was 16 degrees last night so the engine stays on for heat). The oil level is good. I'm due for change in the next 500 miles.
Is this anything I should be concerned about? I'm sure I'm just overly sensitive.
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I have noticed a very mild cyclical humming noise at exactly 70 mph. Initially I thought it was the original Bridgestones but it continued after I had a new set of Michelin PSS mounted. The noise can only be heard if the car is on a smooth road and the radio and AC are off. I was wondering if it may be a wheel bearing or issue with the differential. Not sure. Its not a big deal but would like to get to the bottom of it if possible.
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Just bought a 2005 4.6Lused. There is a "air escaping" kind of noise during acceleration. It sounds just like the AC system does sometimes after you turn off an engine. I thought originally that it by be AC related, but doesn't appear to be. At steady speed, it goes away, but comes on again with the slightest bit more gas pedal. In cruise control, it cycles on and off when the cruise accelerates up a hill,, etc. The sound is on the driver's side apparently close to dash corner.
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Driving around town it doesn't happen too often. Like if I am starting from a stop it feels fine but when going up a hill or passing on the highway it bucks and shakes and doesn't want to go over 3000 rpm. Also, the check engine light is on and it flashes when it's really bad. I took apart the intake and didn't see anything weird. I am about to take it in to see what the code says because it's been getting worse.
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Well lately I haven't driven my truck much. Usually only on the weekends if Im lucky. Well I drove it today and I noticed this weird noise on acceleration. I have the cam phaser tick and have had that for about 50k miles or so. I started to think I was getting a manifold leak and that's what I thought this noise was until when I pulled over and put it in park and revved it up I did not hear the noise again.
It only does it when you hit the gas until you get to a steady rpm. I only drove 5 miles or so. So I couldn't do much testing cause its late and I got to get up in 4 hours. I don't even know how to explain the noise. It kinda sounded like an exhaust leak but it was more of like a lite thud noise I guess. Like I said it only does it when I hit the gas when its in drive but not in park. I tried to explain it the best I could. I just hope its not phaser problems cause I don't want to dump a bunch of money into it.
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I have a 2005 FX4 with a 5.4L. I have noticed in the past 3 months that when I mash the go pedal hard the engine misses and there is a popping sound. My gas mileage has gone down 2-3 MPG.
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My new to me 04 4.6 shuddered and misfired really bad last week, got couple misfire codes. I changed plugs which were really bad, like burnt out to .080, got a HEI ignition tester and got a healthy spark from all the coil packs. Drove it today and ran much better but still would shudder under acceleration when cold, wasn't as bad when warmed up but still noticeable. I thought if I got a spark with the tester that means the coil is ok? or is that not the last word in coil health. Or should I look somewhere else like injectors ? Haven't got any codes since plug change.
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I posted a while back about my 04 5.4 having an issue at idle. I did all the normal things like replace coil, spark plug, etc etc. No change to the issue. It still acts as though it's misfiring on a cylinder and I get codes P0306 and P0316. Finally took it to ford and had a diagnostic check ran. Everything on the top end was in working order. The tech even put a known working coil on 6 and nothing changed. I was told that it's either an intake or valve issue on that cylinder. But no definite answer to problem.
Fast forward to yesterday. I got a wild hair at lunch and went out and started truck. Pulled injector plug off of 6. No change to the way it was running. I did the same for 5, 7, 8, 1, and 2. All of which made a big difference in the way it ran. It was obviously misfiring with no fuel to cylinder. This gave me the idea to swap 5 and 6 when I got home to see if the issue followed the injector from 6. I did NOT. I pulled the plug on 5 and got the obvious change in the way it ran. So there is definitely something going on at cylinder 6 that I cannot figure out.
PCM, bad intake, bad valve? I'm not rich so a trip to ford for repair is gonna have to wait. Truck seems to run fine when driving except for slight hesitation during acceleration.
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I took my 2008, 56k in for a new battery after my car sat outside in negative degree temps for a few days. After doing that repair, the dealer recommended a new serpentine belt. Ever since that service appointment, the car is making a high-pitched "woo-wooo" noise during acceleration. It's definitely a noise I've never heard before. I took it back to the dealer two days later; he had the service guy drive it and they both claim the noise is normal and just due to the cold. Is it the belt? Is it the cold? Am I losing my mind?
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When I drove the car on Monday a hesitation/jerking randomly came out of no where during mild acceleration at around 2500 RPM. The next day it was doing the same thing, but one of the times it made the check engine light flash a couple times then go off. On Wednesday I put fuel injector cleaner and a new tank of gas in it to see if that worked at all, but it didn't. The problem was still occurring then the engine light came on and stayed on. So I went to see what the problem was on VCDS and here are the errors that came up. Also I should mention that on Tuesday my battery died and I had to get a jump from someone, this didn't affect the problems, but I think it has something to do with the voltage errors.
A Summary of the errors is lots of things about "low voltage b+" and "engine misfires".
01-Engine -- Status: Malfunction 0010
03-ABS Brakes -- Status: OK 0000
04-Steering Angle -- Status: OK 0000
08-Auto HVAC -- Status: OK 0000
09-Cent. Elect. -- Status: Malfunction 0010
[Code] ....
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Some days ago while I was driving, the check engine, red triangle and vsc lights came on and immediately my car slowed down. It would take longer to accelerate and every once in a while upon getting to a stop sign, it would take long to get to 5 from 0. could this be my hybrid battery going out? My regular scanner can't pull up any codes on a prius.
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I have a 2007 Prius with 136,500 miles on it. Love this car. Getting 53.3mpg currently. A while ago I started noticing a strange sound coming from the passenger side of the car where the engine is. Recently the sound has become more pronounced and it has me stumped. The noise occurs upon acceleration, but not all of the time. If the battery is at 2 purple bars and I accelerate, the noise is very noticeable. But once I get to cruise speed it goes away. Again, this is sometimes and not all the time. Hopefully it's nothing, but I figured I would post this incase something is on the verge of failing so I may catch it in time.
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i have been hearing a rattling noise coming from the engine under acceleration only. It isn't a super consistent rattle, seems to only happen when accelerating from lower speeds. And sometimes you don't hear and other times you do. It's not a bad rattle or knock it's more of a ticking/light rattling sound that is definitely abnormal.
I know my brake accumulator is barking at me and the 3 way coolant valve is going bad as sometimes I get a constant pumping sound. I don't think these have anything to do with it but thought I'd mention it.
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5.4 sound like a diesel when idling?
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I need to diagnose an issue I've had with my 2007 Prius with 79,000 miles on it. Several months ago I noticed a distinctive whining/humming noise coming somewhere from the engine compartment of the car while driving. The noise may be present at lower speeds, but the volume of the noise appears to increase proportionately with my acceleration and as such is most noticeable at highway speeds of 50 - 70 miles per hour. As I accelerate faster, the noise level seems to increase. If I take my foot off the gas and coast, decreasing speed, the whining noise gets lower in volume. I believe I first noticed this noise about 6 months ago, but wasn't more proactive about it like I normally would be because at first the noise didn't seem overly loud and my extended warranty unfortunately was up once I hit 77,000 miles. Now 6 months after I first noticed the noise, I believe it's definitely louder than it was when I first heard it, so much so that I can pick it out over the radio being on at a decent volume.
After checking some forums I thought the culprit might be a wheel bearing. I took it into a local Midas shop at they informed me that my passenger-side front wheel bearing was actually breaking apart in pieces. Obviously I had that wheel bearing replaced but I was also hoping this was the source of the whining noise. Unfortunately that wasn't the case as driving it home the noise was still present. They also said the tires were not balanced properly (from my Toyota Dealership no less when I had them install new tires) so I had the tires rebalanced as well. They did take the car for a test drive but probably stop looking for issues with the car as soon as they saw the wheel bearing in that condition. Also that shop does not specialize in Prius' or hybrids so they might not be able to notice the noise that shouldn't be there like I can.
Other than wheel bearings, where this noise could be coming from. Some posts on here possibly pointed to the ICE water pump or transaxle fluid (which as far as I know has never been replaced since I bought the car new).
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I have an 04 F150 Lariat with the 5.4. I get alot of noise out of the top of the motor. I hear lots of stories of sludge issues, is that the problem or do I need to have the motor gone through? the knock is not horrible but when the motor is warm the noise is pretty apparent!
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