Hello Cybweed,

Welcome to the site. I have the towing package. What are you thinkin?


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rev.
99 reg. cab, flareside,
true dual exhaust. I call
it candy apple red w/ metal
flake. Ford calls it something else
Roy
wesanders@earthlink.net

 

To All,

I just got my truck back from the service dept. and my ROUGH IDLE IS GONE! My service invoice reads:

Neutralized engine, Trans, and exhaust system SSM #12738
INSULATOR ASY - ENGI
INSULATOR ASY
The service guy told me they replaced the front motor mounts.

I feel like I have a new truck at 4000 miles!

On another note the reason I went to LS Ford vs. NM Ford is LS gave me a much better deal on my truck. Service could be a different story, but so far so good. This could be a whole new topic alltogether.

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2000 F-150 XLT Supercab 4x4
5.4L Engine (Built 8/19/99)
Off-Road Package
3.55 Limited Slip
K&N Air Filter
Eagle Cap

[This message has been edited by 1stFord (edited 02-21-2000).]

[This message has been edited by 1stFord (edited 02-21-2000).]

 

Howdy 1stFord,

WaZ wondering did they also replace the throttle body.

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2000 F-150 Lariat, Flareside, Black, SC, FOxFO, 5.4L, 3.55, Garmin Street Pilot Color GPS




[This message has been edited by LoNE WoLF (edited 02-21-2000).]

 

They replaced the throttle body too. But that was for my sticking gas pedal.

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2000 F-150 XLT Supercab 4x4
5.4L Engine (Built 8/19/99)
Off-Road Package
3.55 Limited Slip
K&N Air Filter
Eagle Cap

 

I was told that different configurations are calibrated differently. Also, if everyone who has the rough idle also has the towing package then that might be useful info. to uncover. Glad to here about the motor mounts. The idle that you had fixed was I assume and intermittent kind of vibration like the motor was missing?

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F-150 2000, 4.6 V8, ICI nerf bars, Towing Pack. Automatic, XLT, K&N Airfilter

 

I know what an engine feels when its missing 1 cylinder... What I have doesn't feel anything like that! Its more of a slight vibration that is not constant... Like the engine was not machined very well! Like the harmonic balancer doesn't work right??

How could I tell if the harmonic balancer was not made/balanced correctly for this engine? That will ruin an engine over time!

I am assuming that this new FQR Engine came with its own new balancer?? They aren't stupid enough to put the balancer from my old 5.4 to the new one are they??

 

Yea cybweed it was like that and my rpms didn't change.

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2000 F-150 XLT Supercab 4x4
5.4L Engine (Built 8/19/99)
Off-Road Package
3.55 Limited Slip
K&N Air Filter
Eagle Cap

 

1stFord, I used your info to get my dealer going and he is going to do the same thing you had. I am taking it in tommorrow. Wish me luck and I will report back. The way my dealer explained it to me they undo all of the exhaust system and transmission mounts, then start the engine, let it run in neutral, shift to drive, rev the engine, and then back to neutral, then when in neutral they tighten up the mounts again. This apparently helps the system to seat itself. The idea as I understand it to be is that the powertrain is not seated properly in the mounts so an uneven vibration is transmitted to the cab. Wish me luck, and I will report back when I get my truck back.


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F-150 2000, 4.6 V8, ICI nerf bars, Towing Pack. Automatic, XLT, K&N Airfilter

 

I have the rough idle problem. Intermittent and not too severe but noticable at traffic lights. I called my Ford dealer in Athens, Alabama and he gave me some more info that I have not seen here on f150online. I gave him the 99-6287 number and he was unable to cross-reference it to Ford's numbers. So he did a sympton search using my VIN and came up with 3 or 4 SSMs (Special Service Messages 13888, 13889, 13839) where Ford acknowledges the rough idle problem. From what I remember, Ford says the rough idle problem is caused by faulty programming of the PCM (Powertrain Control Module). The service guy called it the "brain box". A fix is not available and dealers should NOT attempt repair of the problem until they recieve the TSB with the fix. The fix will more than likely be flashing the PCM with a software patch to correct the rough idle. The service guy told me to keep checking back once a week until the TSB came out. He said that once the SSM is out the TSB is not usually far behind. If anybody finds out anything different please post.


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2000 F150 Lariat Flareside 4X2 S/C, Black/Gold
5.4, 3.55 LS, Class III, Captain Chairs, CD Changer, Sliding Rear Window
Mods: PendaLiner SR Pro, Factory Body Molding, K&N Filter, Westin Chrome Nerfs,
Downey SST Soft Tonneau

 

I just wanted to take the time to thank all of you for the info I got from this thread.
I too suffer from the rough idle problem and though it's minor, I'm like you guys and it bothers me.
I'm gonna take this info to my dealer's service dept. and will either get a "Gee Thanks!" or the "I hate armchair mechanics" attitude.
Either way, I'll update to let you know what happens.

Thanks!

(P.S. I rode in a 2000 GMC Sierra with a co-worker to lunch the other day and guess what, ROUGH IDLE! I almost had him talked into an F150 after he rode in mine, but he leases and got a good deal.)

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'99 Black F-150 Sport
Extended Cab
4.6 Romeo Triton
3.55 Rear-end,Tow Package,
MODS: Black low- profile bug deflector, K&N Air Filter

Wife's wheels: '91 Green Ranger XLT 3.0L
http://hometown.aol.com\riadan1

 

My '97 4.2L has a rough idle sometimes at start-up. and sometimes it doesn't want to start up very well at all.
What needs to be fixed or replaced? spark plugs?
It even did this when i went to pick up my truck after they did the timing chain cover recall work, but I didn't think about going and telling them about it.

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'97 f-150 XLT V6 auto 3.55 silver reg cab flareside , 6 cd, Lariat floor mats, tonneau, ground effects, tint, glasspack w/ duals, new= ion optics fog lights, cracked windshield (thanks to a dodge caravan), 16X8 Eagle Alloys, K&N air filter (thanks Mudder). Future Mods= Billet Grille, driving lights, sunroof. the heartbeat stops here.
http://www.angelfire.com/ok3/ponysix8 http://www.angelfire.com/ok3/ponysix8/images/T004.wav

 

I don't own a ford but my 98 chevy ext-cab Z-71 w/5.7L does the same thing. Last year when it became real noticable to me I took it to three different dealers which all hooked it up to the computer and all came back saying everything is normal. I then had my original dealer let me start up both new and used trucks on their lot and all of these trucks had the slightly rough idle like mine. All of my friends with ford trucks have the same rough idle as my chevy. I've just learned to live with mine. I think that some people are just more sensitive to how their vehicles run. As a last note, almost all late model fuel injected vehicles of all makes that I have driven have what to me feels like a slightly rough idle.

 

With all due respect I would have to disagree with you wtd. My truck runs smooth now, just like the day I bought it.

Good luck cybweed.


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2000 F-150 XLT Supercab 4x4
5.4L Engine (Built 8/19/99)
Off-Road Package
3.55 Limited Slip
K&N Air Filter
Eagle Cap

 

1stFord, I also purchased mine at LS due to better deals, but I have always used NM for service. Although LS seems to have done better with this problem than NM has, I got mine back with a "could not duplicate" again. By the time I got home it was doing the same thing, I will print this for the next trip.
As for this being "normal", as I stated earlier, I had the assistant service manager look at my truck while it was idling rough, and he said there was definately rough. Never tried to tell me it was normal.
Jeff

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1999 F150 Lariat
Reg cab Short box Styleside
5.4L 3.55ls
Deep Wedgwood Blue/Silver
Lund Interceptor hood shield, VentVisors, Class III hitch, Ford molded mud guards, soft tonneau, factory CD with changer (thanks Dusty), tinted windows

Menasha, WI

http://www.fortunecity.com/silversto...ton54home.html

 

I have had my 5.4 replaced for piston slap. Recieved a new engine dated 9/19/99. The truck idled real smooth until they put in this new engine. I have had it in twice and they sad it is all normal!!!! bull, so i am anxious to hear more replies from this board.

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1999 F-150 4X4 Super cab lariat, 5.4, 3.73 gears,deepwedgewood blue,
and all the options, build date 3/1/99,2000 engine 9/29/99