I would say it was the catalytic converter but usually you should hear it
when idle. If it was internal in the engine, you should also hear it when
idling.
You did not change out the pipes for headers?
I would have the dealer take a look at the vehicle.
--------------------------------------
Steven St.Laurent
IOW/IOS Engineer (NT Platform)
C4i Engineering Branch, PSD, MCTSSA
MARCORSYSCOM, US Marine Corps
Office (760) 725-2506 (DSN Prefix: 365)
"My work has already proven itself. It is
you that has not gotten it yet....unknown author"
-----Original Message-----
From: Mike St. John [mailto:mike.stjohn@rcmt.com]
Sent: Monday, October 15, 2001 12:31 PM
To: dakota-truck@buffnet.net
Subject: Re: DML: RE: 00 dak 4.7 engine problem
Stlaurent Mr Steven wrote:
>What about when idle?
>
>
>
>--------------------------------------
>Steven St.Laurent
>IOW/IOS Engineer (NT Platform)
>C4i Engineering Branch, PSD, MCTSSA
>MARCORSYSCOM, US Marine Corps
>Office (760) 725-2506 (DSN Prefix: 365)
>"My work has already proven itself. It is
>you that has not gotten it yet....unknown author"
>
>-----Original Message-----
>From: Mike St. John [mailto:mike.stjohn@rcmt.com]
>Sent: Monday, October 15, 2001 11:42 AM
>To: dakota-truck@buffnet.net
>Subject: Re: DML: RE: 00 dak 4.7 engine problem
>
>Stlaurent Mr Steven wrote:
>
>>Is it a knocking sound under full throttle?
>>
>>--------------------------------------
>>Steven St.Laurent
>>IOW/IOS Engineer (NT Platform)
>>C4i Engineering Branch, PSD, MCTSSA
>>MARCORSYSCOM, US Marine Corps
>>Office (760) 725-2506 (DSN Prefix: 365)
>>"My work has already proven itself. It is
>>you that has not gotten it yet....unknown author"
>>
>>-----Original Message-----
>>From: Mike St. John [mailto:mike.stjohn@rcmt.com]
>>Sent: Monday, October 15, 2001 10:47 AM
>>To: dakota-truck@buffnet.net
>>Subject: DML: 00 dak 4.7 engine problem
>>
>>I have a 00 dak quad cab, 25,000 miles.... sometimes under a load -
>>going up hills etc... the engine rattles, kinda like the rockers ,
>>however oil have been change every 3,500 , mobil 1 is my oil of choice.
>> anyone else experience this prob
>>lem or have any insight into it.
>>
>>
>>Thanks
>>
>>msj
>>
>
>
>no, never @ full throttle, mostly during acceleration 1/2 throttle or
>so, and its more like a clacking noise than a knock..., dealer said it
>may be the catalytic, but the dealer also installed a new power steering
>pump and only put 1 bolt in it. so i'm still looking for answers.
>
>thanks.
>
no noise @ idle, not even a tick. only happens when under somewhat
under a load, oil press is fine...other than the clacking the truck
drives great, acceleration very nice, shift points seem to be off a bit
, but i'll work on that after I find out what the clacking is.
thanks
msj
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