Ford - Aviator :: 2003 - Odd Stumble / Shutter While Driving Down The Road?
Feb 9, 2013
I have an '03 Aviator that has this really odd stumble / shutter while driving down the road. It loses power and feels like it is going to stall. This is very intermittent and not obvious at idle. Sometimes on hills, sometimes just cruising along. I did some reading and thought maybe I had an ignition coil(s) going bad.
I took the covers off the coils and pulled them out. Six of them looked perfect with one being newly replaced by Ford. Two of them had a thin film of oil mist on them both outside on the rubber boot and inside the rubber boot. I wiped them off and put them back in. There was no oil down in the plug bores and the valve cover gasket looked good. The plugs looked good too.
Is there any way to actually test these? If the problem is intermittent I am not sure if they would fail a test until they got hot from use. I do not have any lights or codes.
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My boss' truck has a bit of a stumble. While going down the road between 40-60 MPH it will kind of stumble. While it's an intermittent problem, it seems to happen when climbing a slight grade. I plugged a diagnostic tool into it and got no codes of any kind. He had it at a trans shop, thinking there might be some trans slippage, but the shop said the trans was fine. The vehicle in question is a 2006 F-150 Lariot 2WD with a 5.4, auto trans...
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I have a 2003 Lincoln aviator with the 4.6 V-8. When I was seafoaming the car today, afterwards I noticed the truck running a bit rougher, and the truck idles around 500-600 rpms instead of 900-1200 rpms. There was a hose connected to the left valve cover, I pulled it off and there was no change in power or sound or idle. Is the hose a pcv hose, if so, where is the valve on this engine in the aviator, shouldn't it be on the valve cover? Do you think its a vacuum leak cause by the pcv valve/hose or a vacuum leak somewhere else? does aviator 4,6 come with a valve or just a pcv hose?
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Looking for the location of purge valve on a 2003 aviator ?
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I have an 03 Aviator with the full-time AWD with about 138,000 miles on the odometer. The truck is reliable and I love it, but I keep noticing a shake and vibration going on, I notice it at almost any speed, I'm pretty sure it gets worse at high speeds and when braking ( especially at high speeds). would this be a transmission problem, a bad cv or u joint? or would it be bad tires or wheel bearings? shocks/struts, rotors?
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Got this truck used, it is a 2001 F150 4 door lariat 5.4, 4x4. It now has around 108k miles on it. The truck dies while driving down the road every couple weeks or so. It will restart after a minute or so and then seems to be fine. The ABS light is on, no codes or CE light.
The last couple months while your going down the road it revs up to 4k rpms or so while your driving like the OD is turning off. The other day it wouldn't start in the morning, I changed the fuel pump relay and it fired right up. I put the old relay back in and it still fired up!!!!
I decided to take it to the dealer today and on the way to town it shifted out of gear while driving at speed, the speedo turned off and the odometer turned off as well. I shifted to N and then back to D, nothing, I hit the OD button and it flashed but still no go so I coasted to a stop, truck was running at idle.
I turned it off, restarted and everything worked just fine again and went on my way to the dealer. Still no CE lights.
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I have the '03 Lincoln Aviator 4.6 DOHC. It has a noticeable knock/ping/chatter and somewhat sluggish acceleration. I notice the PCV hose was collapsed and shredded. I replaced the hose and valve, didn't change idle or acceleration and I still hear the hissing noise in the same region. I unplugged the EGR valve and started the truck, the idle was the same as before I unplugged the valve. could a bad EGR valve give a vacuum leak that is hard to detect? I tried testing for leaks by squirting starter fluid near the suspect areas, and I couldn't detect anything.
could a bad PCV valve be caused by a bad EGR valve and/or vise versa?
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A little about my truck. E99 F-350 crew cab long bed dually 4x4 223K miles. 4.10 gears with LS in rear.
I bought the truck June 2016. I ended up wrecking the truck on the test drive. Thought it was a 4 way stop and pulled out in front of a lady and she ran into the passenger side tire. Only damage that was on the truck was a busted tire, and the fender smashed in. Some how missed the door and the bumper.
I replaced all the front end: u-joints, ball joints, steering linkage, brakes, rotors, calipers, and all the u-joints in both of the drive shafts, also changed the fluid in both axles.
I have started to notice a slight "vibration" "shimmy" while driving down the road. Mainly while in a curve or changing lanes; applying pressure to the steering wheel one or the other. Tires have been balanced, and rotated several different times now with no luck at all.
While backing up, I can feel something "popping" "clunking" especially while turning. Like backing out of a parking space.
Insert troubleshooting:
Jack truck up and put on jack stands.
- Pull and shake all tires. --No movement
- Put in drive and watch all the rear end. --Nothing shaking or out of sync.
- Put truck in 4wd, hard to engage, watch front end. --Nothing shaking or out of sync.
- Turn tires to full lock. --Drive line starts clanking and shaking and rear tires acting funny.
- Turn tires straight. --Problem goes away.
- Put truck back in 2wd. --No problems when turning wheel lock to lock.
- Drive to empty parking lot. --Mainly feel problem while backing up, really have to feel for it. Most people call me insane.
- Lock the front axle. --No difference.
- Put in 4wd. Drive straight --No difference.
- In 4wd while turning. --Truck wants to act like it is fully locked in the rear and will bind up and slip a tire. You really have to give it some fuel to make it even try to move, and its almost like the truck wants to fold in half on itself. Cant keep the steering wheel in one spot as it keeps "jumping" on me.
- Put in 2wd. --Acts the same way until the truck fully comes out of 4wd then smooths back out to where you have to really feel for it. 4wd light stays on forever, before going off later in life.
- Put in 4low. --Gears grind and will not engage.
Would this indicate that the transfer case is messing up on me? Why would the rear axle feel like it is locked when in 4wd?
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I have the '03 Lincoln Aviator 4.6 DOHC. It has a noticeable knock/ping/chatter and somewhat sluggish acceleration. I notice the pcv hose was collapsed and shredded. I replaced the hose and valve, didn't change idle or acceleration and I still hear the hissing noise in the same region. I unplugged the egr valve and started the truck, the idle was the same as before I unplugged the valve. could a bad egr valve give a vacuum leak that is hard to detect? I tried testing for leaks by squirting starter fluid near the suspect areas, and I couldn't detect anything. Could a bad pcv valve be caused by a bad egr valve and/or vise versa?
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My 2003 Aviator kind of stutters when in auto between gears. Most prevalent from 3 to D when driving regular. If I shift manually and tach it to 4k there is no stutter/vibration. My engine light is on and pretty sure the catalytic converter need to be changed. All new NKG plugs and associated coils. Throttle body clean, 91+ fuel only. Could this me a tranny starting to fail or computer/senor related? No other codes than the bank-2 O2 sensor....
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I have a 2003 F250 4X4 crew cab 7.3. It was running great at 244,000 miles. The only problem was the HPOP was leaking, I had done the two upper O rings several thousand miles ago. Any ways after changing the HPOP while driving down the road it would miss at times or hiccup (funny it wasn't doing this before) Also it died a couple times, once at a stop light, had to get it towed home another time in stop and go traffic, this time it started with-in 10 min after trying several times. So I decided to change the IPR, still did the same thing. So I decided to change the CMP with negative results. I checked the ICP sensor it looked good no oil leaking or no saturation. So would it be safe to say I may have gotten a bad HPOP. Remember, I had no problems until I replaced the HPOP
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My '05 Expedition will be driving normal at highway speeds, and when I need to apply a little more throttle to start up a hill I get a shutter thru the truck that sounds and feels like driving over a rumble strip. It doesn't last but just a second or two, but it happens frequently. Is it something in the 4wd? Transmission? or.......?
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My 2012 RX350 now for over a year and like it a lot.........BUT.
There's seems to be a lot "road noise" that's transmitted back into the cabin, like driving over expansion joints on blacktop or rough road surface, is this normal?
I drove a 2000 RX300 for 100,000 miles and don't remember it being this noisy. Interior noise is great and quiet.
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My 2003 Honda Element sometimes generates a vibration that feels just like driving down a washboard dirt road. You know one that the ridges are very close together. This only happens around 40 MPH with a load on the engine. At first I thought it was a wheel, tire or suspension issue. But I can make it stop instantly by pushing or releasing the gas pedal. So this leads me to think it is transmission related. This is a automatic. I would like to see the car sometime but would not feel right about passing on this problem without knowing the cost to fix it. Stumped in Seattle.
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Vibration/shuttering feeling when on electric driving at low speeds 5mph or less or when letting car pull itself under creep in reverse/forward gears. it is almost like your driving over a rumble strip at low speed with no unusual sounds or noises. just feels a little jerky. it has been doing this since i got the car a year ago and no codes are thrown. trans fluid was changed about 5k miles ago at 87k and there was no unusual coloring, or metal in the fluid or on the plug. it was darker red but not burnt or foul smelling by any means. could this be a loose cv joint or drive shaft?
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I'm not sure what is the correct term to describe the engine behavior. Maybe backfire, knocking, but it doesn't sound like the youtube videos I see online. I just know that under certain conditions, the engine shutters with an exploding feel to it like it needed to "pass some gas" for a human.
This happens when braking quickly from high speed to slow speed or a quick stop. Also happens when accelerating then stopping a bit and resuming acceleration (an interrupted acceleration as rush hour traffic not allow for a nice acceleration - you know how people stop and go speeding up then having to break and repeat, affecting you and when you misgauge the best optimal acceleration speed, you have to stop acceleration a bit then resume).
I drive automatic transmission. Are many auto tranny cars affected by this type of thing? I seem to notice it with the cars I've driven. Or maybe I drive crappy cars. I think I noticed it once in a friends manual shift car. This expected normal behavior of cars?
Car drives fine except for the mentioned behavior for the drastic speed changes. The car is a 2006 Suzuki Forenza, automatic transmission. Currently 80k miles.
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Replaced the main battery replaced 12V battery. Drives great except for the whining on the driver side and the occasional shutter at take off and while driving. Triangle is on and stays on engine light and now break light. Topped the break flood off. Cleared codes and the brake light came back on. Drove it home from Atlanta drove just fine. Lights just freaked me out though.
133,000 miles on the car. well kept.
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i have a 1999 F-150 2x4 witha 5.4 liter v-8 with 151,000 miles. Last week the truck began to run rough when i accelerated (ideled fine)and felt like it wasn't fireing on all cylinders and was puffing white smoke. A few minutes later the battery light came on and the truck lost all power and shut off. I replaced the battery and alternator and everything ran fine for a week. Now the issues have come back but i'm not sure the alternator and batter have gone bad again. What could be going on? Have the coils gone bad?
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I have an '04 chevy tahoe, only 70k. Very recently the front end of the car has started to shutter while driving. This happens when I am going generally above 45mph- more so going up a hill. It feels a little bit like I am driving over unevenness/ripples in the road- even when it's smooth flat pavement. When I take my foot off the accelerator and just coast the vibration stops. I got new tires put on front so it is not a wheel balance issue. The car does not pull left or right either like out of alignment. And the engine rmp's do not fluctuate/strain when the shuttering starts.
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I've got a 2003 F150 4x4 supercrew that's got a 9.75" rear end with 3.73 gears. I just replaced clutch packs and spider gear set 2 weeks ago. The last day or two I have noticed that when I make sharp turns that it get a whining like spinning noise. It sounds to me like the spider gears are spinning. It only does it when making sharp turns. There is no noise going down the highway or normal driver. I have noticed at times I get a little shutter when I go to take off or back up. Kinda feels like a brake is hanging. I put friction modifier in when I did the clutch packs and everything. Maybe not enough?
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I have a 2002 f150 with a 5.4. It runs bad but all the data looks good. When you rev it in gear it revs sluggishly but when you put it in drive and give it any gas it will stumble and try to die. Un plug the tranny and it revs great and when in gear it runs great, but it obviously is stuck in second gear. I have codes for tcc short, solenoids a and b short, tcc short, and pressure control solenoid. I have replaced all of these parts inside the tranny including the wiring harness and main connector (transmission side). The OD light is also flashing. I Have run out of stuff to replace, obviously its something transmission related if the truck runs fine with it unplugged.
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