Engine/Transmission (1994 - 1998) Help! 370s = Bad sounds

[vssman]

I recently upgraded from 300's to 370's and thought everything was ok, until yesterday. When I'm on the throttle (med & heavy) I get a nasty noise. It sounds like a mix of someone passing their nails over a glass washboard (you young guy's go look in your grandparents cellar... ) and popcorn popping and air being released from the water pipes just after a plumbing project. Is this the "stumble" that has been discussed in the past? If not, has anyone else had a similar problem? I'm going to try to get the timing adjusted ASAP but I do have to drive the truck as it is. If it's the "stumble" is there any harm driving it like this?



TIA



Paul



It only does it with a load on the engine - not in park.

 

[RHARVEY]

Has your boost levels changed???? Could it be possible that you have developed a boost leak??????



Just a thought...



Rick

 

[vssman]

I haven't had a chance to go investigate it this morning, but I hope it's a "leaky" injector, i. e. blowing past the washer. I'll post what I find out...



edit... let's hope it's not a blown head gasket.

 

[vssman]

It sounds like the transfer case went south. Stops making the noise in 4WD.

 

[cowboy up]

yah i went threw 10 in the last year

 

[HoleshotHolset]

Paul,



Time to upgrade to the 241-HD.



Matt

 

[vssman]

Uh... It is a 241 DHD.....

 

[HoleshotHolset]

Already broke a 241-HD?!

Okay, fine... put a ProFab in it. :-laf



Matt

 

[vssman]

Hold on a second... . Is it stronger than a 241-HD? Where do I sign up for one? Just in case anyone's keeping score, transmission 3 vs tansfer case 2... .



Just got the call. A snap ring broke allowing everything to "wander" around inside the case. Needs a total rebuild and he's using the updated snap ring (thicker & stronger)

 

[HoleshotHolset]

ProFab x-fer cases aren't usually a 'bolt-in' affair and they're not cheap either. BUT, they're a LOT stronger than a 241-HD.



At least you know you're making good power... you're breaking parts!



Matt

 

[vssman]

Originally posted by HoleshotHolset

At least you know you're making good power... you're breaking parts!



Matt

:-laf