I have a 99 Dodge Ram 1500 5.9 liter V8 and 111,000 Miles. Just had a Transmission shop rebuilt the tranny and My Brother in law and I put it in. We installed it, topped off fluids, took check valve out of line by radiator and drove it about 150 miles so far. As soon as started driving it the problem has occured.

Problem: As I accelarate the truck it shifts from 1st to 2nd just fine, but when it goes into 3rd trying to shift into 4th the RPM's go up to around 3500 then I take my foot off the accelarator and it shifts into 4th then into fith just fine. Happens everytime only shifting 3rd. into 4th. Is this an install issue? Rebuild issue? What should I do?

Thanks Todd

 

There's no 5th, 3 speeds and over drive.

 

Take it back for warranty service. You've got a mechanical problem in the overdrive unit causing the clutches to slip.

 

NO 3-4 UPSHIFT
1. O/D Switch In OFF Position. 1. Turn control switch to ON position.
2. Overdrive Circuit Fuse Blown. 2. Replace fuse. Determine why fuse failed
and repair as necessary (i.e., shorts or
grounds in circuit).
3. O/D Switch Wire Shorted/Open
Cut.
3. Check wires/connections with 12V test
lamp and voltmeter. Repair damaged or
loose wire/connection as necessary.
4. Distance or Coolant Sensor
Malfunction.
4. Check with DRBT scan tool and repair or
replace as necessary.
5. TPS Malfunction. 5. Check with DRBT scan tool and replace
if necessary.
6. Neutral Sense to PCM Wire
Shorted/Cut.
6. Test switch/sensor as described in
service section and replace if necessary.
Engine no start.
7. PCM Malfunction. 7. Check with DRBT scan tool and replace
if necessary.
8. Overdrive Solenoid Shorted/Open. 8. Replace solenoid if shorted or open and
repair loose or damaged wires (DRBT scan
tool).
9. Solenoid Feed Orifice in Valve
Body Blocked.
9. Remove, disassemble, and clean valve
body thoroughly. Check feed orifice.
10. Overdrive Clutch Failed. 10. Disassemble overdrive and repair as
needed.
11. Hydraulic Pressure Low. 11. Pressure test transmission to determine
cause.
12. Valve Body Valve Stuck. 12. Repair stuck 3-4 shift valve, 3-4 timing
valve.
13. O/D Piston Incorrect Spacer. 13. Remove unit, check end play and install
correct spacer.
14. Overdrive Piston Seal Failure. 14. Replace both seals.
15. O/D Check Valve/Orifice Failed. 15. Check for free movement and secure
assembly (in piston retainer). Check ball
bleed orifice.

 

He's seeing flaring, not total shift failure.

 

Yes Flaring. And when I manually put it into overdrive it works fine with no flaring. Thanks for all your help guys!