Possible Rod knock?

Skud · Mar 11, 2004

Lately, I've been noticing a "knock" that comes from the lower-driver side of the engine compartment. I can hear it if I listen between the driver-side wheel and the fender. It's more noticeable in the car and the frequency of the sound increases with the engine speed up to a certain point (1500+ RPM) then it goes away (Or I just can't hear it anymore). It's much more noticeable when hot than cold.

It reminds me of the "Fuel Cackle" the powerstrokes had where it sounds like someone is hitting the inside of the cylinder with a ball-peen hammer.

I've attached a wav file with the recording of the powerstroke "cackle". Now, my my car obviously doesn't sound like a diesel and the "knock" I have isn't as loud, but it gives you an idea as to the frequency and general idea of the sound. Powerstroke Cackle

I thought this might be the head "tick" I've heard about, but it sounds much deeper than that.

Any ideas?

Riley

1fast03pony · Mar 11, 2004

Skud said:
Lately, I've been noticing a "knock" that comes from the lower-driver side of the engine compartment. I can hear it if I listen between the driver-side wheel and the fender. It's more noticeable in the car and the frequency of the sound increases with the engine speed up to a certain point (1500+ RPM) then it goes away (Or I just can't hear it anymore). It's much more noticeable when hot than cold.

It reminds me of the "Fuel Cackle" the powerstrokes had where it sounds like someone is hitting the inside of the cylinder with a ball-peen hammer.

I've attached a wav file with the recording of the powerstroke "cackle". Now, my my car obviously doesn't sound like a diesel and the "knock" I have isn't as loud, but it gives you an idea as to the frequency and general idea of the sound. Powerstroke Cackle

I thought this might be the head "tick" I've heard about, but it sounds much deeper than that.

Any ideas?

Riley

I know exactly what youre talking about because i have it too.

its a sort of a subtle "hit" inside the engine when its totally warm
its not exactly a tick. ijm gonna subscribe to this one because i have the same noise i just dont know what it could be.

Skud · Mar 11, 2004

1fast03pony said:
I know exactly what youre talking about because i have it too.

its a sort of a subtle "hit" inside the engine when its totally warm
its not exactly a tick. ijm gonna subscribe to this one because i have the same noise i just dont know what it could be.

I've taken it to the dealer twice for this and both time they've said "Could not reproduce/Normal Engine Sound".

I don't know if it's anything serious, but I KNOW it wasn't this loud a few months ago. My concern is that if I can hear it now, then obviously something has happened to make it louder.

Riley

SilverBullit99 · Mar 11, 2004

Sounds similar to what my car sounded like. When it first started making the noise I took it to Ford and they said they didn't hear anything abnormal. So I kept driving it and it got louder and louder. It got to the point where drivers next to me could hear it at a stop. Took it back and it was a rod bearing. Ford replaced the motor.

1fast03pony · Mar 11, 2004

SilverBullit99 said:
Sounds similar to what my car sounded like. When it first started making the noise I took it to Ford and they said they didn't hear anything abnormal. So I kept driving it and it got louder and louder. It got to the point where drivers next to me could hear it at a stop. Took it back and it was a rod bearing. Ford replaced the motor.

my friend driving next to me heard it. i have 6k miles on my motor (@ a stop)
But its been loud ever since i got the car (brand new)
I remember it started noticing it before i had the car dynoed at 2k miles

Fastscorpio · Mar 11, 2004

Skud said:
Lately, I've been noticing a "knock" that comes from the lower-driver side of the engine compartment. I can hear it if I listen between the driver-side wheel and the fender. It's more noticeable in the car and the frequency of the sound increases with the engine speed up to a certain point (1500+ RPM) then it goes away (Or I just can't hear it anymore). It's much more noticeable when hot than cold.

It reminds me of the "Fuel Cackle" the powerstrokes had where it sounds like someone is hitting the inside of the cylinder with a ball-peen hammer.

I've attached a wav file with the recording of the powerstroke "cackle". Now, my my car obviously doesn't sound like a diesel and the "knock" I have isn't as loud, but it gives you an idea as to the frequency and general idea of the sound. Powerstroke Cackle

I thought this might be the head "tick" I've heard about, but it sounds much deeper than that.

Any ideas?

Riley

Chech this service bulliten out(T31604/Ticking noise)Mine had the same thing they replced whole motor ant 55,000miles.Take vehical to dealership give them that service bulliten number there is aprocedure listed to test for noise
if car fails these tests they will either replce heads or engine.

Skud · Mar 11, 2004

Fastscorpio said:
Chech this service bulliten out(T31604/Ticking noise)Mine had the same thing they replced whole motor ant 55,000miles.Take vehical to dealership give them that service bulliten number there is aprocedure listed to test for noise
if car fails these tests they will either replce heads or engine.

I had thought it might be the defective head issue, but it didn't sound like a tick. I think I'll take it back to the dealer and ask for this TSB to be done and see what they say.

Do you know what the procedure is to test for this issue?

Riley

2k2SilverBullet · Mar 11, 2004

yep well it is a rod bearing that is wrogn with your guy's car, because that is the same problem i had in my car...........and i got a new crankshaft,bearings and some other stuff new on my car out of it courtisy of my local ford dealer

1fast03pony · Mar 11, 2004

2k2SilverBullet said:
yep well it is a rod bearing that is wrogn with your guy's car, because that is the same problem i had in my car...........and i got a new crankshaft,bearings and some other stuff new on my car out of it courtisy of my local ford dealer

at what milage did you start noticing the noise?

Dan_Soprano · Mar 11, 2004

awwe man!!! I hope that this doesn't happen to me soon!! (knock on wood) I still have 5000 miles left on my warranty, but the KB is going to void that I am sure!!!!!!!!

Skud · Mar 11, 2004

1fast03pony said:
at what milage did you start noticing the noise?

I think it was around the 15,000km mark. Now I have 20,000km on it and it's much louder and more frequent than before. It's an '02 GT.

I'm still well within the warranty period.

[edit] Whoops!! I see you were replying to 2k2SilverBullet and not me [/edit]

Riley

1fast03pony · Mar 11, 2004

Skud said:
I think it was around the 15,000km mark. Now I have 20,000km on it and it's much louder and more frequent than before. It's an '02 GT.

I'm still well within the warranty period.

[edit] Whoops!! I see you were replying to 2k2SilverBullet and not me [/edit]

Riley

thats alright i would like to see when everyones noise has started. seems like a common problem? i just hope they will hear it and not gimme the "cant hear it" speech.

2k2SilverBullet · Mar 11, 2004

27k miles

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