3.0 constant clunking


Tenzet

New member
U.S. Military - Veteran
Joined
Oct 7, 2019
Messages
4
Reaction score
1
Points
3
Location
California
Vehicle Year
2001
Make / Model
Ford Ranger
Engine Type
2.9 V6
Transmission
Automatic
2WD / 4WD
2WD
Hey guys - recently purchased a V6 3.0 and trying to figure out what this clunking noise is. It happens at idle and under load. On acceleration the clunking speed increases as well.

I've tightened the headers down, but haven't seen a difference. It doesn't sound like it's a loose exhaust pipe because it sounds too far up (under engine-ish) to me.

Here is a video:

Any help is appreciated!

Edit* Truck has 205k miles. Throwing code P1405 and P0171/174 but I don't think they're relevant.
 
Last edited:


Rock Auto 5% Discount Code: 173A8B749AB83C Expires: January 1, 2020

91stranger

Well-known member
Joined
Jul 28, 2010
Messages
1,203
Reaction score
158
Points
63
Location
ohio
Vehicle Year
1999
Make / Model
FORD
Engine Size
3.0
Transmission
Automatic
Kind of sounds like a loose heat shield.
 

rusty ol ranger

Well-known member
Joined
Sep 22, 2007
Messages
4,570
Reaction score
652
Points
113
Location
Michigan
Vehicle Year
1987
Make / Model
Ford
Engine Type
2.9 V6
Engine Size
2.9L
Transmission
Manual
2WD / 4WD
2WD
My credo
A legend to the old man, a hero to the child...
Um....

That sounds serious.

Like busted piston skirt or other assorted metal banging around inside.

Of course thats on a shitty phone speaker.

Pull the dipstick and look for metallic in the oil...
 

Tenzet

New member
U.S. Military - Veteran
Joined
Oct 7, 2019
Messages
4
Reaction score
1
Points
3
Location
California
Vehicle Year
2001
Make / Model
Ford Ranger
Engine Type
2.9 V6
Transmission
Automatic
2WD / 4WD
2WD
@91stranger - I'll check the heat shield

@rusty ol ranger - I hope it's not, any way to know without pulling engine apart? If it is, would an engine swap be a better option? Edit* Recently changed oil looking for anything odd because of recent purchase but didn't see anything abnormal. Truck has 200k miles by the way.
 

rusty ol ranger

Well-known member
Joined
Sep 22, 2007
Messages
4,570
Reaction score
652
Points
113
Location
Michigan
Vehicle Year
1987
Make / Model
Ford
Engine Type
2.9 V6
Engine Size
2.9L
Transmission
Manual
2WD / 4WD
2WD
My credo
A legend to the old man, a hero to the child...
@91stranger - I'll check the heat shield

@rusty ol ranger - I hope it's not, any way to know without pulling engine apart? If it is, would an engine swap be a better option? Edit* Recently changed oil looking for anything odd because of recent purchase but didn't see anything abnormal. Truck has 200k miles by the way.
Just keep checking the oil for metallic chunks, cut open the old oil filter if you want, look in there for metal to.

But, if im right and its internal, as noisy as it is it aint gonna live long.

If you go the swap route another 3.0 is really the only option.

I might would take it to a garage, it could be something simple like a heat shield, but i kinda doubt it. It would of rattled it self off by now more then likely.
 

Tenzet

New member
U.S. Military - Veteran
Joined
Oct 7, 2019
Messages
4
Reaction score
1
Points
3
Location
California
Vehicle Year
2001
Make / Model
Ford Ranger
Engine Type
2.9 V6
Transmission
Automatic
2WD / 4WD
2WD
@rusty ol ranger @91stranger

Oil - when I purchased the oil was pretty bad, but didn't see any metallic. I've replaced the oil filter already and cut it open just out of curiosity and only found dirt and a couple pieces of sand (sand was hidden all over this vehicle, definitely wasn't dirty metal).

I don't actually see a heat shield where it's supposed to be, just some heat reflective padding stuff.

If I swapped - yeah I would just get another 3.0. The truck only cost me 1k, bought it to use as a beater/haul some bikes if they go down but still need it to run. A used engine isn't too expensive if this one does crap and I'd do all the work myself.

This wouldn't be what is called 'detonation' if there was an exhaust/vacuum leak correct? Today I replaced a really bad double crack in the EVAP fuel discharge valve hose to intake (vacuum leak) so I think those lean conditions may go away.
 

rusty ol ranger

Well-known member
Joined
Sep 22, 2007
Messages
4,570
Reaction score
652
Points
113
Location
Michigan
Vehicle Year
1987
Make / Model
Ford
Engine Type
2.9 V6
Engine Size
2.9L
Transmission
Manual
2WD / 4WD
2WD
My credo
A legend to the old man, a hero to the child...
@rusty ol ranger @91stranger

Oil - when I purchased the oil was pretty bad, but didn't see any metallic. I've replaced the oil filter already and cut it open just out of curiosity and only found dirt and a couple pieces of sand (sand was hidden all over this vehicle, definitely wasn't dirty metal).

I don't actually see a heat shield where it's supposed to be, just some heat reflective padding stuff.

If I swapped - yeah I would just get another 3.0. The truck only cost me 1k, bought it to use as a beater/haul some bikes if they go down but still need it to run. A used engine isn't too expensive if this one does crap and I'd do all the work myself.

This wouldn't be what is called 'detonation' if there was an exhaust/vacuum leak correct? Today I replaced a really bad double crack in the EVAP fuel discharge valve hose to intake (vacuum leak) so I think those lean conditions may go away.
Its definatly not detonation.
 

Uncle Gump

Well-known member
Supporting Member
Joined
Sep 17, 2018
Messages
1,351
Reaction score
576
Points
113
Location
Plano IL
Vehicle Year
2006
Make / Model
Ford
Engine Size
4.0L
Transmission
Automatic
2WD / 4WD
4WD
My credo
Lead, Follow or get out of my way
Belt tensioner rattle? Torque converter bolt loose? Starter gear ticking on the flex plate?

Sure didn't sound like a clunking to me...more like a rattle.
 

PetroleumJunkie412

2.9l Aficionado
Supporting Member
TRS 20th Anniversary
Joined
Oct 31, 2018
Messages
1,784
Reaction score
1,299
Points
113
Location
Pittsburgh, PA
Vehicle Year
1988
Make / Model
Ranger
Engine Type
2.9 V6
Transmission
Manual
2WD / 4WD
4WD
I'd definitely be sending an oil sample out to Blackstone.
 

91stranger

Well-known member
Joined
Jul 28, 2010
Messages
1,203
Reaction score
158
Points
63
Location
ohio
Vehicle Year
1999
Make / Model
FORD
Engine Size
3.0
Transmission
Automatic
You could always go pick yourself up a mechanics stethoscope and listen with that to try to pinpoint where the sound is coming from. Harbor freight sells them for around 5 bucks I think. Local auto stores will be around 10 bucks I'd imagine. Beats trying to use a camera phone. Any codes or check engine light by chance?
 

pjtoledo

Well-known member
Supporting Member
U.S. Military - Veteran
Joined
Oct 5, 2007
Messages
1,908
Reaction score
134
Points
63
Location
Toledo Ohio
Vehicle Year
20002005199
Make / Model
Fords
Engine Size
3.0 2.3
My credo
get outta my way, I'm falling!
with that many miles on a 3.0 it's time to pull the cam syncro assembly for inspection. at the very least remove the top and put some oil in there.
 

ericbphoto

Old Redneck just wingin' it.
Supporting Member
U.S. Military - Veteran
TRS 20th Anniversary
Joined
Feb 7, 2016
Messages
2,912
Reaction score
828
Points
113
Age
55
Location
Wellford, SC
Vehicle Year
1993
Make / Model
Ford Ranger
Engine Size
3.0L
Transmission
Manual
2WD / 4WD
4WD
Total Lift
6"
Tire Size
35"
My credo
In theory, theory and practice are the same. In practice, they are different.
Sounds like a wood chipper full of rocks. I think it's dead.
 

rusty ol ranger

Well-known member
Joined
Sep 22, 2007
Messages
4,570
Reaction score
652
Points
113
Location
Michigan
Vehicle Year
1987
Make / Model
Ford
Engine Type
2.9 V6
Engine Size
2.9L
Transmission
Manual
2WD / 4WD
2WD
My credo
A legend to the old man, a hero to the child...
Question...

Does the noise go away when you put it in drive and hold the brake?
 

91stranger

Well-known member
Joined
Jul 28, 2010
Messages
1,203
Reaction score
158
Points
63
Location
ohio
Vehicle Year
1999
Make / Model
FORD
Engine Size
3.0
Transmission
Automatic
Any more on this?
 

Tenzet

New member
U.S. Military - Veteran
Joined
Oct 7, 2019
Messages
4
Reaction score
1
Points
3
Location
California
Vehicle Year
2001
Make / Model
Ford Ranger
Engine Type
2.9 V6
Transmission
Automatic
2WD / 4WD
2WD
Belt tensioner rattle? Torque converter bolt loose? Starter gear ticking on the flex plate?
Sure didn't sound like a clunking to me...more like a rattle.
Checked belt tensioner - doesn't seem loose, though this seems to be a very different noise than what I've heard from tensioner/pulleys/belt before.
Will have to check on the other two items.

I'd definitely be sending an oil sample out to Blackstone.
Interesting - I've never heard of this before. Will look into it if I cannot find what the issue might be very soon.

You could always go pick yourself up a mechanics stethoscope and listen with that to try to pinpoint where the sound is coming from. Harbor freight sells them for around 5 bucks I think. Local auto stores will be around 10 bucks I'd imagine. Beats trying to use a camera phone. Any codes or check engine light by chance?
I think I'll do this at that price. As ford codes - they're posted in the original post at the bottom.
The lean codes have since gone away - replaced a hidden vacuum leak in EVAP purge valve.
EVAP and CAT are still incomplete on OBDII.

with that many miles on a 3.0 it's time to pull the cam syncro assembly for inspection. at the very least remove the top and put some oil in there.
Never done this, have a DIY guide or specific things I should be looking for here?

Question...
Does the noise go away when you put it in drive and hold the brake?
Tested this in all gears, the noise does not go away.

Any more on this?
Update
 


Top