ok i noticed today that if i get on it, and go really quick and lett off the gas i hear a "ZZZZZZZZZ" sound comming from the engine bay. It lasts about 1-2 seconds. im thinking i have a loose timing chain, its not loud, but enough to hear it.

shes got 199K and i believe its the original chain... anybody else have this problem? does it sound like a timing chain?

I still have full power.

 

i wouldnt think so.. mine had almost 300,000 on it when i changed it had about 1/2 of play but ran great ... only did it cause i did water pump at same time too

 

I have this same problem, when I give it gas it sounds like a small little buzz... I am thinking its either:

Serpintine Belt
Alternator

Thats where the noise is coming from, or at least I think so.

 

i have a new belt. and have done the "trick" to listen to alt. bearings, and mine are good

 

How about Valve cover gaskets. If one blew it would kinda sound like that.

 

its more like a wine,,,,but it wouldnt hurt to change it

i mean you saw mine with 68,000 org miles

 

i replaced valve cover gaskets when i did plenum 6K ago, new PCV and breather as well.

i do have a whine comming from the fan clutch/water pump area thats consistant, and gets higher pitched as i accelerate. but the "ZZZZ" is different than the whine i already had (obviously)

but the weird thing is, my Fan clutch and water pump both have 9K on them. and i bought them brand new, not remaned or used

 

99.9% of the time, this is the plenum gasket! J/K

Does it sound like a sucking sound? Thats called an air intake system.

 

no its not a sucking sound,

and i had a 93 nissan 4x4 that had a loose chain, and it sounded somewhat similar, except a littler deeper, and not as fast...its so hard to explain




BTW can you rammers just check out this thread for me please. its on the rear axle assembly i just replaced in a 03 dakota
https://dodgeforum.com/forum/2nd-gen...-no-start.html

 

its wine at WOT,,, but with all the work you have done to that truck and money you put in it and sounds like you like and going to keep the truck ,,,, just replace it one day you got sum free time maybe on a nice day