Rattling noise

[z9_87]

Rattling noise - HELP!

Well I had one hell of a crappy night tonight. The alternator bracket fell off - the bolts holding it on snapped. WTF? It's ok i fix that all in about an hour and I can still go to the track but NO! Damn thing has something else wrong with it. Sounds internal and it's a rattleing noise that I only get under a load so no park or nuetral problems. Also CE light comes on only at WOT. I try to pull the codes with the car in park and I get nothing. I can't tell what the hell is wrong with it. I'm about to sink the damn thing into the river. :damnit: :damnit: :damnit: :damnit: :damnit: :damnit: :damnit: :damnit: :damnit: [/Rant & help]

 

[HISSIN50]

Sorry to hear that bud. The code thing is a little strange (that code should be in the KAM).

Anyhow, I cant think of any advice, so i offer sympathy.

good luck.

 

[z9_87]

Seriously, if anyone knows what to check for tomarrow morning please inform me. I don't want to just start ripping it apart.
As far as the code, the only code it gives after the immediate code is the soft egr code i've always had for no egr.

 

[Insane3D]

Just a couple things to check. I had rattling for awhile, and it turned out to be a loose nut on a header stud, that was allowing the h-pipe flange to rattle.

Also, I had a buddy that had rattling that turned out to be starter bolts that had loosened up.

 

[z9_87]

yeah i was already checking for loose bolts but couldn't find any. It's more than that anyways, the car ust isn't running right. Took it for a spin and its a total dog. If i let it idle for 10mins it will die. Also the coolant doesn't heat up very fast at all however the return line is pressurized very quickly. Also the oil is hot enough almost instantly for it to smoke out of the dipstick tube and the fill tube. I was thinking head or head gasket. No coolant in the oil though. I'm lost the CE light wont come on and it's not in the KAM.

Another Develoment: Smoke out of the trottle body when I take off the intake tube.

 

[Uber5.0]

For those following, I'm going to put my guess down as damaged piston rings or valve seals. I think there would be an obvious amount of coolant and white exhaust smoke if it was a head gasket, more than is suggested by the post, but who knows?

 

[z9_87]

I would hoppe its not the piston rings as they're new about 1000miles ago.
Another thing I found when messing with it is the smoke coming from the oil fill cap smells like exhaust.

 

[z9_87]

And now it doesn't start. I let it sit all day but I needed to move it. I cranks forever but not start. There's spark and fuel that I know.

 

[HISSIN50]

I might do a compression test at this point - it might be revealing.

good luck Zach.

 

[z9_87]

I might do a compression test at this point - it might be revealing.

good luck Zach.

What's funny is i posted that last one mostly to bump it so you might be able to add to it. Oh well. Can't do anything till monday anyways so unless something easy pops into my head i'll be sittin at home...probably on here.

 

[HISSIN50]

With all that you had described before, the compression (or a leakdown if you have the instruments to do it) test would be where I start. I initially was thinking that something in the motor might be hurt (assuming this is not an engine management issue, which the codes dont seem to indicate).

was the motor missing at all when you took it out earlier? The smoke out the intake, etc could indicate many things, amongst the simplest is that the ignition is misfiring (cracked ignition cap, etc).

But I tend to just pour over things in person till something jumps out at me. I cant think of much I can suggest from the keyboard, unfortunately. I was thinking a compression test would let you know if things *seem* alright in each pot atleast.

sorry to not be of more help. Good luck bud.

 

[z9_87]

When I took it for a drive, it was very hessitant when i floored it. A couple of quick jerks forward. Then away it went like always but slower and then the rattling.

By ignition cap you mean the top of the distributor?

 

[Stang8URMPRT]

If you have smoke coming out of the dip stick tube, you've got blow by. That's not burning oil. If it was "burning oil" you'd get blue smoke out the tail pipes, not out of the dipstick. Sounds to me like you got some smokin' rings. 1000 miles or not, it was either not built right, or not broken in right. But that's just my .02

 

[HISSIN50]

When I took it for a drive, it was very hessitant when i floored it. A couple of quick jerks forward. Then away it went like always but slower and then the rattling.

By ignition cap you mean the top of the distributor?

yep - as in 'cap and rotor'.

Nick, if he hurt the motor (headgasket, etc) then the old rules of thumb might not apply. like smoke out the dipstick or pushing the dipstick out usually is excessive crankcase pressure (like Nick said) and it can simply be a clogged PCV system. But if a headgasket, etc went south, that can toss a wrench into that thinking.

what exactly did the rattling sound like? Like detonation? wouldnt it be cool if all that happened was that your FP took a dump (hence the bogging and lack of power under WOT and then the car dying).

Thoughts?

 

[z9_87]

yeah the fuel pump would be cool but the rattling sounds like there's a bunch of ball bearings in the motor. At first I thought it was loose exhaust bolts. It comes from the pass side back of the engine.

 

[HISSIN50]

Hmmm, this is getting to the point where 'you might have to be there' because IMHO detonation sounds like ball bearings in a can. bad headgasket can do the same - i would at least do a compression test on a couple of pass side plugs (if like a stang, the hardest plugs to get to. Grrr).

good luck and bump Zach.

 

[z9_87]

Well I figured it out today, unfortunatly. I had to move it from where it was at and when it started, poof, white smoke. So head gasket/head. I think it has to do with the alt. bracket falling off as it seems it might be cyl #1. Going to be tearing it apart soon, hopefully gasket cause I don't want to buy a new head.

 

[HISSIN50]

sorry to hear that (I kinda' had a feeling).

Good luck with the tear down.

 

[z9_87]

Well I did a compression test before I tore it apart and I got only 30-50psi on heads 1-3. 110ish on 4. 5-8 were fine at 145.

So I tear down the pass side and the head looks great. The gasket had a small spot where it was tore a little around a coolant port but it never broke the o-ring. cylinder 1 was bronze in color as was the piston so I think coolant was leaking in there. 3-4 were all carbon black. Other than the small tear in the gasket I saw no problems. So this doesn't explain the low compression in 2 and 3.
What else should I check?

 

[HISSIN50]

I would want to check for warpage. Bump.

Good luck bud.