Problem or Paranoid.......
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Posting Guru
Joined: Mar 2005
Posts: 1,460
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Problem or Paranoid.......
On my 99 PSD I have noticed the tiniest increase/ decrease in flutter of the RPM's while idling in the parking lot. They are so minute that it is really hard to even see a change on the tach needle barly moves. Is this something that is usual for a small amount of fluxuation in RPM's that I have just never noticed before or AM I LOOSING MY SANITY AND BEING PARANOID?
If it makes a difference, it is about 70 degrees, parked in the sun, sitting for 8 hours without being started. 4500 miles on the oil change. New airfilter 7000 miles ago.
THANKS!!!
If it makes a difference, it is about 70 degrees, parked in the sun, sitting for 8 hours without being started. 4500 miles on the oil change. New airfilter 7000 miles ago.
THANKS!!!
Mountain Pass
Joined: Jan 2004
Posts: 110
Likes: 0
From: Oregon
I have the artic package on my 99 which is a box located under the cup holder mounted under the dash. The box is a digital tach among other things like idle hold and charge protect. I watch that one more than the tach on the dash because it is a lot more accurate and easier to read. It has always fluctuated between 20-50 rpms depending on what's kicking on and off or cycling on and off. If you hook up a Predator tuner and run real time, you can watch all kinds of things fluctuating while its idling. You're probably ok. 
FTE Leadership Emeritus
Joined: May 2001
Posts: 13,653
Likes: 6
From: Cabot, Arkansas
Mine does it worse when it's due an oil change, but it's always had a very minor idle surge.
I really can't comment on your mental state, but don't let this little thing cause you to loose it.
I really can't comment on your mental state, but don't let this little thing cause you to loose it.
New User
Joined: Jan 2005
Posts: 11
Likes: 0
i have noticed the exactly same thing on my '97as your describe. i don't think it is a problem. i'm not a mechanic but i hve been around a lot of diesel's in the fire dept.. i havn't heard one yet that didn't lope once in a while.
