1995 3500 12V 47RH or RE? Converter Issue - Competition Diesel.Com

blos101 · 01-12-2020, 10:05 AM

Couple questions:

Bought a 1995 3500 DRW 4x4. I know nothing about autos. Does this truck have a 47RH or RE?

Issue: While driving down the road the converter will lock and unlock. Now, you can hammer down on it and the converter will lock and stay locked. No transmission slippage at all. What could potentially be the issue? Thanks!

Signature600 · 01-12-2020, 11:06 AM

47RH...I would bet the TPS is out of adjustment or going south on you. It would be the electronic component bolted to the side of the injection pump.

I have never owned a 12v/47RH combo, but that is the most likely issue.
Chris

jasonc · 01-12-2020, 11:27 AM

Yes on what stock600 said.
But before you do anything, drive it with your tow behind the brake pedal pulling up. I've had two trucks that the issue was flickering the brake lights driving down the road, causes the conv to unlock every time.

jasonc · 01-12-2020, 11:28 AM

Signature600, auto correct got me.

Mark Nixon · 01-12-2020, 11:57 AM

There was an issue with the PCM on the '94-'95 47RH trucks back in the day.
It was bad enough to trigger a recall, IIRC.

Mark.

jasonc · 01-12-2020, 01:29 PM

Quote:

Originally Posted by Mark Nixon

There was an issue with the PCM on the '94-'95 47RH trucks back in the day.
It was bad enough to trigger a recall, IIRC.

Mark.

I just put a lock switch in my old 94, along with a unlock switch. Never found the issue on that one, it would come and go. Drove without a trailer just fine, the toggle switches when I towed.

01-12-2020, 10:05 AM	#1
blos101 Name: blos101 Title: Life Saver Status: Not Here Join Date: Dec 2009 Location: Cincinnati Member`s Gallery Posts: 1,239	1995 3500 12V 47RH or RE? Converter Issue Couple questions: Bought a 1995 3500 DRW 4x4. I know nothing about autos. Does this truck have a 47RH or RE? Issue: While driving down the road the converter will lock and unlock. Now, you can hammer down on it and the converter will lock and stay locked. No transmission slippage at all. What could potentially be the issue? Thanks!

01-12-2020, 11:06 AM	#2
Signature600 Name: Signature600 Title: THA MAN! Status: Not Here Join Date: Aug 2006 Location: Jeffersonville, Ohio Member`s Gallery Posts: 11,974	47RH...I would bet the TPS is out of adjustment or going south on you. It would be the electronic component bolted to the side of the injection pump. I have never owned a 12v/47RH combo, but that is the most likely issue. Chris __________________ THANKS TO: Tim Barber @ TRE Diesel Jeff Mumau @ Mumau Diesel Service Rip @ Source Automotive Don Thuren @ ThurenFab Suspension Columbus Diesel Supply

01-12-2020, 11:57 AM	#5
Mark Nixon Name: Mark Nixon Title: No Savior among the flesh Status: Not Here Join Date: Feb 2009 Location: Brownville, Nebraska Member`s Gallery Posts: 8,676	There was an issue with the PCM on the '94-'95 47RH trucks back in the day. It was bad enough to trigger a recall, IIRC. Mark. __________________ If you or I did business like the PEOPLE in government do business, we'd be put in jail. Government is coercive. Anarchy: The state of existence where there are no masters & no slaves. Therefore, Anarchy means the ABSENCE OF SLAVERY, or, in other words, FREEDOM.

01-12-2020, 11:27 AM	#3
jasonc Name: jasonc Title: Too Much Time Status: Here Join Date: Nov 2009 Member`s Gallery Posts: 4,412	Yes on what stock600 said. But before you do anything, drive it with your tow behind the brake pedal pulling up. I've had two trucks that the issue was flickering the brake lights driving down the road, causes the conv to unlock every time.

01-12-2020, 11:28 AM	#4
jasonc Name: jasonc Title: Too Much Time Status: Here Join Date: Nov 2009 Member`s Gallery Posts: 4,412	Signature600, auto correct got me.