More tranny questions - Diesel Forum

CDX825 · 07-22-2008, 07:24 PM

Well here is the latest. I took the pump out of the tranny and it would appear that its not the problem. Converter also seems to check out good internally all though two of the bolts are striped out and the shaft seems to have alot of wear on it so Im going to replace it. Im still lost as what the problem could be here. Start it up after siting a few hours and it was whining like I had a turbo. Seemed to catch and grab at about 45 Mph and was jerky. As I mentioned before there was some metalic in the pan but it was very very little. So here is my questions what could have caused the whining noise? And what is specific about the diesel converter? Any help is greatly apreciated!!! Thanks Justin

WhiteGardens · 07-22-2008, 10:24 PM

Was the pump tested and it came out fine??

CDX825 · 07-22-2008, 11:26 PM

Yeah the guy said the thing was like new. He seemed to think the converter internally was ok as I mentioned before as well.

WhiteGardens · 07-23-2008, 09:31 AM

I would get a pressure tester for the tranny and test it in the truck if you want to. You can rent the guage at most auto-parts store. I think there is a plug you can remove for the test without removing the tranny lines, my mech just removes the lines and tests there.

You could have a clog in the line somewhere too. Pick up an aerosol can or two of tranny flush and flush the lines. One can one direction, another can another direction.

Your VRV valve might need replacement, or you have a leak in the vacuum line from the VRV valve to your tranny. That could explain the hard shifts.

As for the whine, I couldn't tell you. Sounds like the torque converter if I had to guesstimate.

There is an adjustment for the VRV valve, do a C-6 search in the threads, I know CDNSARGUY has givin out that info more than a few times.

That's my opinion, and we all know how those are.

CDX825 · 07-24-2008, 02:28 AM

I will check the lines for sure. I had to think about it for awhile but if only the pump and the converter are spinning while at idle its got to be one of the two. Seems more like the converter as the pump checked out okay.

CDX825 · 07-26-2008, 07:33 PM

Well Im in the market for a torque converter and wanted you guys input as to where I could find a good one. Thanks!