Knock, Bump, Clunk.... What the Hell?!?!?
02-16-2008, 11:55 AM
#1
Knock, Bump, Clunk.... What the Hell?!?!?
Yesterday when I went to leave work I went outside to start up the truck and let it warm up while I was making my rounds and shutting the shop down, When I pulled out of the parking lot I noticed what sounded like a rod knock... I was instantly sick to my stomach and checked all the gagues and killed the truck... engine temp, oil pressure, voltage, trans temp were all good... It changed with RPM too. It sounded like it was coming from down low in the motor so I instantly I think I am hearing a rod about to take a trip through the oil pan. I Started it back up and began the drive home. No lost power, rock solid oil pressure, but the same knock was there... Its about a 30 mile drive home for me, it was there the whole time. I was sweating it hard...
I get to the last red light I come to before leaving town to go to my house and I roll down the windows, kill the music and notice that the sound is gone... WTF!!! I'm thinking this thing's already about to come apart and Its just taking its last breath LOL... I got back out on the Hwy headed towards my house and got in the throttle a bit to pass someone and everything was business as usual... What the hell was I hearing??? I got home and let it idle for a bit and crawled all over and listened and couldnt find a sign of any noise... and it hasnt came back since... I'm stumped as to what it could have been...
The motor has got about 120K on it and has broken everything from the flexplate back numerous times but I've never had a moment's problem from the motor... she still puts people in their place almost daily. I'm absolutely lost on this one.... is it time to start building a motor?? I was looking to get about 150K out of her before I looked at that, and even then the motor is supposed to be going in another truck...
Sorry for the long post, I've just been thinking about this **** non-stop and its got me puzzled.
Cliff notes: Heard knocking sound on the way home from work, lasted for about 20 miles... no loss of engine vital signs, sounds mysteriously goes away... what the FoKKK
I get to the last red light I come to before leaving town to go to my house and I roll down the windows, kill the music and notice that the sound is gone... WTF!!! I'm thinking this thing's already about to come apart and Its just taking its last breath LOL... I got back out on the Hwy headed towards my house and got in the throttle a bit to pass someone and everything was business as usual... What the hell was I hearing??? I got home and let it idle for a bit and crawled all over and listened and couldnt find a sign of any noise... and it hasnt came back since... I'm stumped as to what it could have been...
The motor has got about 120K on it and has broken everything from the flexplate back numerous times but I've never had a moment's problem from the motor... she still puts people in their place almost daily. I'm absolutely lost on this one.... is it time to start building a motor?? I was looking to get about 150K out of her before I looked at that, and even then the motor is supposed to be going in another truck...
Sorry for the long post, I've just been thinking about this **** non-stop and its got me puzzled.
Cliff notes: Heard knocking sound on the way home from work, lasted for about 20 miles... no loss of engine vital signs, sounds mysteriously goes away... what the FoKKK
02-17-2008, 12:53 AM
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it wasn't your header/y-pipe bangin on the frame was it?
if my y-pipe fitting on the passenger side isn't put on just right it will knock on the frame and make you think something is ready to blow up at any time.....then it will often be quite for large periods of time.
Just something i'd check before preparing for the worst.
if my y-pipe fitting on the passenger side isn't put on just right it will knock on the frame and make you think something is ready to blow up at any time.....then it will often be quite for large periods of time.
Just something i'd check before preparing for the worst.
02-17-2008, 01:01 AM
#6
it wasn't your header/y-pipe bangin on the frame was it?
if my y-pipe fitting on the passenger side isn't put on just right it will knock on the frame and make you think something is ready to blow up at any time.....then it will often be quite for large periods of time.
Just something i'd check before preparing for the worst.
if my y-pipe fitting on the passenger side isn't put on just right it will knock on the frame and make you think something is ready to blow up at any time.....then it will often be quite for large periods of time.
Just something i'd check before preparing for the worst.
02-17-2008, 01:04 AM
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They have been on for almost 2 years now and have never done it... ?? Plus they are welded so I dont think they will move much. It wasnt a "tinny" sound, it was identical to every knocking rod I have ever heard in my life... I was thinking about a spun bearing too...
IDK, i guess hope for the best.
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02-17-2008, 01:05 AM
#8
02-17-2008, 02:11 AM
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Im with you on the noise thing about every rattle it makes and so on.
You think to check and make sure somethign doesnt come out when you drain your oil? Might be somethign to try. Early oil change never hurt nobody.
You think to check and make sure somethign doesnt come out when you drain your oil? Might be somethign to try. Early oil change never hurt nobody.
