MY trucks issues

[SaleenEXP]

I think his is 2wd, but who knows with the Lemoneer ,

 

[DarkFox1]

yes, thats the sound.. on 44.wav in 1st gear you can hear it very very clearly.. you may need to turn the bass down to hear it, I found it got in the way on some of these recordings.

nope its 2wd but I haven't ruled out the diff by any means axle code d4.. should be an LSD 3.73 I would attribute the sound to diff whine.. but since it goes away with a shift and then returns at the same point in the gear I dont think I could call it that.

ya that particular run was 10 sec. I came to a complete stop on a road here that isn't traveled much, and nailed it, that was faster than it usually is. It had a pretty good day that day.

 

[V8-X]

DarkFox1-Well before all this started my 5.0 ran smooth. With the stock exhaust & running good you could barely tell that it was a V8 with little to no vibration at all. Now with the problem(s) the engine & exhaust tone have gotten deeper, and you can really tell I have a V8 now. You can feel the rough idle vibrate through the seats, steering wheel & pedals, but you couldn't tell by looking at it. My engine really doesn't move at all, but you can see it vibrate a tiny bit. I have problems keeping up with mini-vans, and really any car. If I give it a lot of gas I can, but like you I run high RPM's in this situation. Shifts at about 3000-3200 RPM's and stays above 2100-2200 RPM's. If it ever drops below 2000, it's like the engine bogs down and I have very little power. Usually to keep a steady pace with traffic (from a stop), I usually have to get the RPM's up around or close to 3000. The truck sounds good. I was planning on adding an exhaust, until this came up. You say you have a FlowMaster 50 series? I'll relisten to the downloads, hoping to catch the noise you were reffering to. Didn't notice it the 1st or 2nd time I listened.

 

[james t]

i noticed the whine. after reading some suggestions, i turned my sub off, and you can definatly hear it.

i also notice that your tranny shifts faster than a stock tranny. kinda like it has a shift kit.

3000-3500rpms untill shift change would flat-out get me a ticket majority of the time. after reading all this i tried to take notice of most of my "in town" rpms this morning. i usually acclerate with traffic if not faster, and it shifted around 24-2500 every time. that is accelerating at what i call a "brisk" pace, just enough to out-accelerate traffic.

back to the idle issue, when you said it idled really high in cold weather, did you mean in park or in drive?i forgot all about that one. and yes, my idle DOES go up in very cold start, from the usual 750 to what i would say is 850 (in drive). the rough idle def. shouldnt be there, as my 96 idles smooth enough to not even feel it.

 

[SaleenEXP]

Originally posted by james t
i noticed the whine. after reading some suggestions, i turned my sub off, and you can definatly hear it.

i also notice that your tranny shifts faster than a stock tranny. kinda like it has a shift kit.

3000-3500rpms untill shift change would flat-out get me a ticket majority of the time. after reading all this i tried to take notice of most of my "in town" rpms this morning. i usually acclerate with traffic if not faster, and it shifted around 24-2500 every time. that is accelerating at what i call a "brisk" pace, just enough to out-accelerate traffic.

I noticed that also, sounded almost like a manual 5.0 Mustang shifting.

Same with our 5.0 Mounty, 2-2400 rpm will easily pull in front of traffice from a stop and gets up to speed pretty quickly in the range, anything faster and the truck starts moving pretty quickly. I usually take off at 3,000 rpm or so and fly by everyone. If I floor it - bye bye traffic

 

[DarkFox1]

well from v8's description of the rough idle, I dont think that particular problem runs along the same line with us.. fo rsome reason I'm thinking motor mount with yours v8.. not sure tho

james, it idles highest in park.. when I put it in gear the engine rpms drop signifigantly for a split second as if someone was on the gas, let off, and then immediatley put the gas back on, usually drive idles about 100rpm lower than park.

You know.. thats one reason I did not want to get a chip or shift kit, the transmission shifts so hard now, I was wondering from time to time if maybe they'd somehow accidently put some kind of shift kit in there or something.. a long shot for sure, but.. there are times when it shifts juuuuuust right firm, quick.. I would love for it to do that all the time.. sometimes the shift is sloppy and slow, sometimes it jerks your guts out...

2500 rpm will keep me slightly behind someone.. and for the life of it it will not shift below 3000 rpm.. if I so much as use enough gas to get the tires moving to make a turn, if I stay on the gas it immediatly sails up to 3k rpm once I'm out in the road.

There are times.. when it will do what I was talking about when I put it in drive.. in between 1st and 2nd.. its always between 1st and 2nd and this is the only time besides putting it in gear that it does it.. it will be accelerating then.. will act as if I let off the gas, and then immediatley put my foot back on the gas.. and I know I'm not doing this.

 

[SaleenEXP]

also, our 00' Mounty idles so smooth it feels like the engines off, except for the slight 5.0 rumble And when driving, theres no type of vibration whatsoever.

All I know Dark is our truck takes off hard and fast at 3,000 rpm and shifts perfectly below it, if I floor it, BAM, i got pure 5.0 power and fly by everyone.

heh, today actually leaving school somekid (not from my school) got on my ass as we were comming to a stop light, he was in a last gen QX4. Kid was a dork (no offense to anyone) but he just looked like a geek and was jumping up and down listenting to his system. I take off normally and he's still riding my ass and then he floors it and gets in the next lane looking like he's trying to be a thug or something, LOL, I actually wave (like a bye bye wave), floored it and burned him so hard, pretty funny, that QX4 had no chance of keeping up, I nailed it at about 35-40mph and he was already flooring it when he went to pass me.

 

[DarkFox1]

your stories do not make me feel any better about my truck lol

must be nice... my parents and friends contribute the problem to me "being a perfectionist" the ford place tells me I'm askin too much.. the shops say "its got plenty of power" to them.. and a couple of shops even said that all my additional weight is doin it..

come on now.. 2-3 sec slower cos of a couple hundred pounds? I dunno bout that

v8 was there ever a time where you had a fuel leak down by the bottom half of the engine? or any kind of impact that may have caused a motor mount to go out? since you're truck is fairly new having a bad motor mount would not be something I would consider normal. however if you eve rhad a fuel pump leak or aynthing.. sometimes they will squirt the fuel right on that mount.. and it will collapse, I assume the gasoline dissolves it. (this happened to my C10 over like 2 years)

I would imagine most shops would find this.

I',m about to call the transmission shop and ask them about dropping the pan and taking a look. Took my final final today so now I got lots of free time till about early Jan.

 

[james t]

if there was a fuel leak, he would know it...

1- it would run like @ss, as it wouldnt have enough fuel pressure.

2- it would spray out of the line like a gasoline-powered super soaker. remember, the fuel in the lines after the FPR is at least 30psi. your thinking of a carb'ed engine that "leaks" fuel. ours wouldnt leak it, they would spray it EVERYWERE.

 

[DarkFox1]

yea, I am thinking carbd.. sorry.. thtas all i've worked with lol

ok tomorrow at 1:30.. drop-pan transmission diagnosis.. $50

 

[V8-X]

James T. - The idle runs high from a cold or warm start in both drive & park. Only when I shift out of drive into park, the idle will increase about 1000 RPM's for a moment and then drop back to where it was idling in drive. Whether I start it cold or start it up right after I shut the truck off, it will idle rough. This lasts for about 2-3 blocks driving or 5 minutes of sitting still just idling.

Dark Fox 1 - I don't think I have a motor mount problem, as the vibration of the engine is very slight, just looks like it's running rough and the vibration can be felt through the truck. Now once it warms up, you can't feel the vibration anymore. I am having a similar situation with my truck between 30-40 mph, it acts as though I let off the gas for a moment (drops about 300-400RPM's) then the RPM's start going up again like I reapplied the gas pedal when my foot never left the accelerator. I don't believe the transmission is shifting, but when this happens it's like the engine starts to bog down. I receive the same responses from the shops (plenty of power, asking to much from a SUV, etc), but I know the truck doesn't have the power it should. This truck has never been in any accidents and no there are no leaks to be found.

My truck will shift under 3000 RPM's, that's not a problem with me. Now if I don't run it up to 3000, then traffic is passing me like I'm standing still. As long as it shifts right around 3000, I'm keeping up with traffic but not passing anyone.

Saleenexp - I remember I had power like that once upon a time. Since June/July, the truck hasn't been the same.

 

[SaleenEXP]

Originally posted by james t
if there was a fuel leak, he would know it...

1- it would run like @ss, as it wouldnt have enough fuel pressure.

2- it would spray out of the line like a gasoline-powered super soaker. remember, the fuel in the lines after the FPR is at least 30psi. your thinking of a carb'ed engine that "leaks" fuel. ours wouldnt leak it, they would spray it EVERYWERE.

he's right, if you had a leak, there's be gasoline shooting out everywhere.

think of a supersoaker filled with gasoline like james said, 30psi may not seem that much, but in that little fuel line it's like a bomb waiting to go off if theres a hole anywhere

Sorry bout the story, didn't mean to bring you down , but he got owned

 

[SaleenEXP]

Originally posted by V8-X

Saleenexp - I remember I had power like that once upon a time. Since June/July, the truck hasn't been the same.

thats what doesn't make sense, if it were occuring on a bunch of 5.0's it'd be different, but you two are the 1st ones I've heard of with a 5.0 running like that, I think your the only ones also out of all this forums "active" members (not the 13,000 lurkers lol) that are having these problems.

At least your truck ran like ours at some point, but for it to just start acting like it is, is just weird. Wonder why it's affecting yours and Darks only??

I thought it could be a slipping tranny on Darks, but from that one vid it sounds like a maunal 5.0 Mustang shifting fast so it doesn't sound like it's slipping, but then he says how it will barely shift below 3,000rpm and then it shifts hard as hell (which it does at every shift from the sound of it).

Maybe ford stuck in an even smaller cam in your trucks lol.

 

[DarkFox1]

well wel'' see about transmission tromorrow

I donht ever remember it being extremley powerful.. but.. I started feeling the slowness right before I did all my mods

 

[V8-X]

My problem started in late June or early July when I stopped at 7-11 to pick up a drink. Turned the truck off, went into 7-11, came out & started the truck. When I came out and started it back up, the truck started surging/misfiring when driving & you could feel the surging/misfiring pulse through the brake pedal when stopped. After 1 block of it acting like this, the CEL came on. I took the truck to have the codes checked the next day, and it was determined to be a bad #4 spark plug. So we changed all 8 plugs and wires (Mototcraft Double Platinum plugs & Motorcraft 8 gauge wires). The CEL turned off after this and has not turned back on, but the truck now lacked power. Between then and now, I have had 5 different shops check the truck out (2 Ford Dealer & 2 Independent shops & 1 AAMCO). None of them could find the problem, even though one shop stated it was the IAC & FPR. So since it all started I've replaced: IAC, FPR, EGR, TPS, all 4 02's, 8 plugs & wires, PCV & Fuel Filter (ALL Motorcraft or Ford parts). Both Ford & myself cleaned the MAS/MAF, and Ford ReCalibrated the PCM. Each item seemed to give the truck back a slight amount of power, but nothing drastic. This is when my problem started. How the transmission would be affected when I have a #4 spark go bad, I don't know.

Any thoughts?

 

[aldive]

Originally posted by DarkFox1
I donht ever remember it being extremley powerful.. but.. I started feeling the slowness right before I did all my mods

Could it be that you are expecting too much. Your stock truck * running properly ) is not that powerful and is not fast.

Whart are you expecting?

 

[james t]

yes, aldive, the truck is not a race car in stock trim. darkfox may be expecting too much, but it has been established that there is indeed a problem. if he has to rev to 3000-3500 just to keep up with traffic in town, then there is something wrong. also, it shifts as if it has a shift kit in it, it idles rough from time to time, etc.

 

[aldive]

Still, he admist he has little knowledge and pays some to do all the work, vould it be a different story with say, you, James, driving?

 

[DarkFox1]

0-60 in less than 10 sec.. being able to keep up and pass in normal traffic with no more than 3k rpm.. 3k and above shoul dbe reserved for performance needed situations.. not daily driving

at one point I too had a bad plug wire.. as you v8, all 8 plugs and wires were replacd, I cannot put this as the exact moment my truck started lacking power.. but I do recall that problem.. I dont see how that could be associated...

 

[aldive]

Originally posted by SaleenEXP
he's right, if you had a leak, there's be gasoline shooting out everywhere.

Not necessarly so. I had a fuel smell problem a year or so ago that I just could not find. There is a thread about it on here, It turned out to be a pin hole size hole in the graded fuel line on the front of the motor. The FP was normal and never could we see a leak.