Knock when shutting off, and driving a certain way... - Dodge Diesel

gman07 · 10-08-2006, 05:43 PM

This truck has had a knock when shutting off for a while now (not just the "wet-dog shutdown"), and I recently noticed that it makes a growl/vibration when turning right, that is, when the weight is transfered to the left side. The knock is also only there when the truck is shut off with the passenger side uphill (again, with the weight on the left side). Last, but not least, with the truck on a sidehill, drivers side downhill, in drive, it also knocks and vibrates. The vibration is related to engine speed. Any ideas?

I might as well make this post about performance too

I recently put the 18cm housing back on and got a decrease of 6psi boost, but no EGT drop. Was the extra 6psi really helping that much? Enough to overcome the restriction of the 12cm housing?

TIA

flashgordon · 10-08-2006, 06:00 PM

Quote:

Originally Posted by gman07

This truck has had a knock when shutting off for a while now (not just the "wet-dog shutdown"), and I recently noticed that it makes a growl/vibration when turning right, that is, when the weight is transfered to the left side. The knock is also only there when the truck is shut off with the passenger side uphill (again, with the weight on the left side). Last, but not least, with the truck on a sidehill, drivers side downhill, in drive, it also knocks and vibrates. The vibration is related to engine speed. Any ideas?

I might as well make this post about performance too

I recently put the 18cm housing back on and got a decrease of 6psi boost, but no EGT drop. Was the extra 6psi really helping that much? Enough to overcome the restriction of the 12cm housing?

TIA

Check you tranny mount and the bolt that attach it.

gman07 · 10-08-2006, 06:22 PM

Thanks. I was thinking mounts, I was just getting other opinions

flashgordon · 10-08-2006, 06:27 PM

Quote:

Originally Posted by gman07

Thanks. I was thinking mounts, I was just getting other opinions

Mine would make some funny noise when it would gets down to -10* or colder just wrote it off the to cold.........when i rebuilt my t-case this summer, i found that one bolt had all but came out and a nether was loose

whating for cold weather to se if atleast one of those strange noise form frozen rubber mount go a way!

wannadiesel · 10-08-2006, 06:49 PM

Also check to see if the exhaust is hitting anything.

spunbearing · 10-08-2006, 08:41 PM

Quote:

Originally Posted by wannadiesel

Also check to see if the exhaust is hitting anything.

Good call. I also had a strange noise that took me forever to find. Turned out to be the sheet metal cover over the slave cylinder. It was cracked. Bruce
( mannwelder ) welded some washers over where the stress cracks were. He even gave it back to me sandblasted and painted.

No more noise.

Redleg · 10-09-2006, 11:22 AM

Frame might be cracked under the steering gear if it's doing it when you turn.

gman07 · 10-09-2006, 07:18 PM

Thanks for the suggestions guys. I still haven't gotten around to checking it (busy time with harvest and all). However, I recently put a new steering gear reinforcement plate on, and the frame there is fine, so that is one possibility ruled out.

10-08-2006, 06:49 PM	#5
wannadiesel Adminstrator-ess Join Date: Mar 2003 Location: New Holland, PA Posts: 22,593 My Photo Gallery My Classified Ads	Also check to see if the exhaust is hitting anything. __________________ Faith '93 D350 - DPS 6x16's, HTT Stage IV/14wg, PowerStroke IC, Snow water/meth, Walbro 392, Con-FE, pump tampering by owner. 390 HP/800 TQ on #2 only, 413 HP/852 TQ w/ water/meth - needs more air! Dead KDP's = 72 wannadiesel@dieseltruckresource.com

10-09-2006, 11:22 AM	#7
Redleg I was banned per my own request for speaking the name Pelosi Join Date: Aug 2002 Location: Bristol Michigan Posts: 1,908 My Photo Gallery My Classified Ads	Frame might be cracked under the steering gear if it's doing it when you turn. __________________ MIDTR 90 W350, flat bed, xtra leaf all around, Jasper 3spd auto, 16cm housing, tampered pump, Isspro pyro/boost, piller pod, BHAF, 93 radiator mod, Superwinch lockouts, Moog, 2nd D70. The number you have dialed, 9-1-1, has been changed... to an unlisted number. Freedom is everybody's job!

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10-08-2006, 06:22 PM	#3
gman07 Registered User Join Date: May 2005 Location: Peoria, IL Posts: 1,052 My Photo Gallery My Classified Ads	Thanks. I was thinking mounts, I was just getting other opinions

10-09-2006, 07:18 PM	#8
gman07 Registered User Join Date: May 2005 Location: Peoria, IL Posts: 1,052 My Photo Gallery My Classified Ads	Thanks for the suggestions guys. I still haven't gotten around to checking it (busy time with harvest and all). However, I recently put a new steering gear reinforcement plate on, and the frame there is fine, so that is one possibility ruled out.