new torqe converter ,now flashing O/D light and no first gear - Diesel Forum

dtsthx · 08-10-2009, 08:59 AM

so finally got new converter in and now OD light flashes and the automatic gear shift not working with no first gear

i did bypass all trans lines hooked up to radiator and ran new hose from new 6.0 cooler to two trans lines by powersteering pump

any one have ideas where to look for problems

MilitiaAir · 08-10-2009, 09:22 AM

Sounds like its in limp mode.. Id double check the harness is plugged in all the way. Check the codes... Solonoid pack could have checked out... Easy fix just expensive part...

westvandude · 08-10-2009, 01:42 PM

Just checking, that you poured at least a pint of atf into the new converter before installing it otherwise the pump may not prime. You can test flow by unhooking the return line from the trans and putting that into a bucket. About half a minute for a cup of atf at idle. Did you have anything else apart besides pulling the trans and refilling with atf?

dtsthx · 08-10-2009, 01:54 PM

this was my first qeuss when i did the banks trans command and broke the harness on passanger side it did the same thing .

when i getoff work i will double check all harness connecters.

so would by passing all stock radiator translines effect this ?

or is it the new three disc HD tourqe the couse
I DID CALL ANDRE AT EDGE RACING CONVERTERS AND HE SAID 1-2 QAURTS WOULD BE FINE . I PUT 2 IN THE WHOLE TRANS,TORQE,DEEP TRANS PAN,AND 6.0COOLER TOOK 21 QUARTS TOTAL

THANKS TO ALL AT THE DIESEL STOP.COM

westvandude · 08-10-2009, 02:01 PM

Yes, if the solenoid pack electrical connector wasn't in all the way it's possible to toast the trans from what I've read. So check that first. Not likely it's the converter as new ones should be bench tested by the manufacturer.

Most run into the radiator trans cooler and then into the 6.0 cooler. No idea if the 6.0 cooler by itself has enough capacity but you got trans temp gauge right? If all this happened right after you buttoned up the trans after putting in a new converter then the lines are not an issue.

Have you got an OBD-2 code reader for the trans light?

TransBrain · 08-10-2009, 03:03 PM

Sounds like something electrical is not plugged in. There are also a couple of speed sensors on top of the trans that are often forgotten to be connected after a trans R&R that will cause limp mode. The others would be the solenoid pack and the MLPS. Try disconnecting each and reconnecting. Otherwise, a scantool will be necessary if you can't seem to find something disconnected.

**Mark Kovalsky** · 08-10-2009, 07:43 PM

Quote:

Originally Posted by westvandude

Just checking, that you poured at least a pint of atf into the new converter before installing it otherwise the pump may not prime.

That's not right. Fluid in the converter has nothing to do with the pump priming. If the pump didn't prime then NOTHING in the trans would work.

Quote:

Originally Posted by westvandude

You can test flow by unhooking the return line from the trans and putting that into a bucket. About half a minute for a cup of atf at idle.

Another one that's wrong. It should be 1 quart in 15 seconds. That's 8 times more fluid than you specified.

westvandude · 08-11-2009, 01:34 AM

Quote:

Originally Posted by Mark Kovalsky

That's not right. Fluid in the converter has nothing to do with the pump priming. If the pump didn't prime then NOTHING in the trans would work.

Another one that's wrong. It should be 1 quart in 15 seconds. That's 8 times more fluid than you specified.

Right-O. Forgot to say, that was with my trans totally cold so most of the flow would be using the bypass. Hot is a different story, as you mention.

dtsthx · 08-11-2009, 03:41 AM

thanx for the info

IT WAS THE BANKS TRANS COMMAND one pin had slipped out of the harness

so after running a trans cooler in seires for 2 1/2 to 3 years with some heavy pull's and some first gear desents from 10,000 feet , some green light pull's with a pullovers with a warning ticket RELEASING TO MANY PARTICALS by the UHP ( more than fair warning) the tranny fluied was almost black and smelt burned

So i decided with the new cooler i think is a 6.0 cooler but the add said for a f450 f 650 BUT ITS BIG three times as big , that i would just run it solo and see if it cuts back on burning.

i think the flow was not enogh!!

the new one solo cooler today ran in low 90's the temp was 30 degress low in stop in go traffic

and the torqe converter kicks butt

i hope the tranny holds up this weekend is ELK ARCHARY opener and i am headed to th high uinta basin 9,000 to 10,000 feet up by kings peak kinda

THANX AGAIN TO ALLAT THE DIESELSTOP

**Mark Kovalsky** · 08-11-2009, 07:23 AM

Quote:

Originally Posted by westvandude

Right-O. Forgot to say, that was with my trans totally cold so most of the flow would be using the bypass. Hot is a different story, as you mention.

No, that's not right either.

The bypass only works when the cooler is plugged. There is no thermostat in the bypass, it only works on pressure. Cold temperatures (until it's way below zero F) won't make the bypass open.

westvandude · 08-11-2009, 12:15 PM

Ok.

So in your opinion is the flow more when the atf is hot vs at room temp, because it loses viscosity @ temp?

**Mark Kovalsky** · 08-11-2009, 02:23 PM

No, flow should be just about the same hot or cold. Either temperature there should be one quart in 15 seconds.

dtsthx · 08-12-2009, 01:31 AM

temps have been 30 degress lower

around town

so mark what would cause the almost black fuid ?

i tryd to upload some pictures but i cant figure it out

**Mark Kovalsky** · 08-12-2009, 07:15 AM

Quote:

Originally Posted by dtsthx

so mark what would cause the almost black fuid ?

Black fluid means it has been severely overheated. Often that happens from a slipping clutch. If that is the case the only solution is to rebuild or replace the transmission.

444-4D · 08-12-2009, 10:37 AM

Mark

How hot does the fluid get at the clutch during a normal full throttle shift on a healthy trans?