Hey guys, just looking for alittle help, my 3.4 97 4runner makes the weird almost like a rattling sound durring idle, its had to explain but its not a rattle, it just kinda has that sounds, it seems to be towards the rear driveside of the engine, i only notice it durring idle, it maybe doing it all the time, just the engine noise overpowers it, not sure about that, its also not constant, it does it with the engine, maybe everyother second or so, if i could get a sound bite of it, i would but have no way to do that, anyway its been doing it for awhile, in all weather and temps, and doesnt seem to effect anything, other then being a noise i cant stand anymore, any help, would be great, also if someone has any idea i will try to discribe it more, thanks

 

Does it sound like engine pinging?
Does it have a check engine light showing?

Do you perform regular maintenance on this vehicle? (ie standard tuneup stuff, plugs, filters, etc)

 

yea all regular maintenance is done and always was, i had the truck since new, its not a pinging, its really hard to explain, its more of a rattle, but sounds like its near the rear of the motors leftside head, like i said i runs good, no problems or check engine light, it does have 165k on it and its been used hard, and i plan on keeping it til it rusts apart, thanks for they reply

 

check the heat shields

 

already did that, its not a heat sheild, thanks for the reply

 

does it sound rotational or like a vibration rattle??

 

it sounds rotational for sure, that what makes it seem weird, cause its been doing it for awhile now and i have no running or power problems

 

I think mine might be making the same noise - reminds me of the sound of a big diesel or something. I have not had any issues either - oil looks good - compression is good etc...

 

check the exhaust manifolds and/or header flanges for leaks

 

i dont have any leaks or anything, i checked this thing over and over, everything i thought it could be and even stuff that i knew it couldnt be, i wish i could figure out a way to get a clip of it, but its hard to hear on a recording, very easy if your standing in front of it or sitting in it, anyway im still working on it, anymore ideas let me know, thanks for all the replys so far

Greedy- thats probably the same sound im getting