2nd Gen Ram Tech 1994-2001 Rams: This section is for TECHNICAL discussions only, that involve the 1994 through 2001 Rams. For any non-tech discussions, please direct your attention to the "General discussion/NON-tech" sub sections.

P 1740 Code 2001 Ram 1500

Thread Tools
 
Search this Thread
 
  #1  
Old 10-13-2015, 02:35 PM
ThatJeepGuy's Avatar
ThatJeepGuy
ThatJeepGuy is offline
Registered User
Thread Starter
Join Date: Sep 2015
Location: PA
Posts: 24
Likes: 0
Received 0 Likes on 0 Posts
Default P 1740 Code 2001 Ram 1500

So, I put a reman trans in my 01 Ram 1500 5.2L 4x4. It was out of a 1997 and had about 900 miles on it before pulled. Upon installing the new trans, I installed the updated 3/4 spring, Overdrive solenoid w/ harness, and the Heavy -Duty Borg Warrner Solenoid, speed sensor, and lockup sensor as well. Flushed radiator cooler as well as new Dorman lines as well. It shifts great. Once in a while will hold 3rd on a downshift a little too long I feel but still goes into OD and Lock-up good too. Starts in first every time and no shutter in reverse. What is causing the 1740 code?
Thanks in advance.
 
  #2  
Old 10-13-2015, 05:48 PM
HeyYou's Avatar
HeyYou
HeyYou is offline
Administrator
Dodge Forum Administrator
Join Date: Apr 2010
Location: Clayton MI
Posts: 80,697
Likes: 0
Received 3,171 Likes on 2,924 Posts
Default

P1740 TCC or O/D Solenoid Perf

PCM isn't seeing RPM drop as quickly as it thinks it should. Check and make sure everything is seated properly, a pressure leak will give you that code.
 
  #3  
Old 11-18-2015, 11:08 PM
ThatJeepGuy's Avatar
ThatJeepGuy
ThatJeepGuy is offline
Registered User
Thread Starter
Join Date: Sep 2015
Location: PA
Posts: 24
Likes: 0
Received 0 Likes on 0 Posts
Default

Been too busy recently, Just dropped the pan last night and took solenoid out and reinstalled. It looked ok but I recall when I first put in it seemed to not want to go in enough but the hold down plate seemed to work. Drove it and Shifts the same.
Adjusted D/T cable again and 1,2,3 gear shifts are like snapping your finger perfect, then I have to let off gas to drop in 4 and Lockup. D/T Cable not adjusted right? Do I want it tight or loose. It does downshift very easily and front a stop on a downhill start with almost no throttle it wants to stay in 1st or 2nd unless i touch throttle.
Sorry for story book!
Thanks in advance!
 
  #4  
Old 11-19-2015, 10:41 AM
HeyYou's Avatar
HeyYou
HeyYou is offline
Administrator
Dodge Forum Administrator
Join Date: Apr 2010
Location: Clayton MI
Posts: 80,697
Likes: 0
Received 3,171 Likes on 2,924 Posts
Default

4th gear and TCC lockup are just solenoids. May want to loosen the kickdown cable one notch at a time, and see if it makes any difference in the 4th gear shift.
 
  #5  
Old 11-27-2015, 10:29 AM
ThatJeepGuy's Avatar
ThatJeepGuy
ThatJeepGuy is offline
Registered User
Thread Starter
Join Date: Sep 2015
Location: PA
Posts: 24
Likes: 0
Received 0 Likes on 0 Posts
Default

Well I got some miles on her now and after readjusting the kickdown cable it has been really good. This morning I got the 1740 code again and it shut overdrive off. No Temp light, that never comes on. The trans I installed is a 98-99. There was a service bulliton about drilling out the boost valve cover plate on 2000-2001. This being an older trans might have the smaller hole up top, (maybe). If it has the small hole could that be causing this? I still have my old valve body so I could swap the whole unit it I needed.
Thanks!
 
  #6  
Old 11-27-2015, 10:39 AM
HeyYou's Avatar
HeyYou
HeyYou is offline
Administrator
Dodge Forum Administrator
Join Date: Apr 2010
Location: Clayton MI
Posts: 80,697
Likes: 0
Received 3,171 Likes on 2,924 Posts
Default

Are the solenoids in the trans new?
 
  #7  
Old 11-27-2015, 10:42 AM
ThatJeepGuy's Avatar
ThatJeepGuy
ThatJeepGuy is offline
Registered User
Thread Starter
Join Date: Sep 2015
Location: PA
Posts: 24
Likes: 0
Received 0 Likes on 0 Posts
Default

Yes, I added the borg warner HD one recommended and new solenoid w/harness.
 
  #8  
Old 11-27-2015, 11:20 AM
HeyYou's Avatar
HeyYou
HeyYou is offline
Administrator
Dodge Forum Administrator
Join Date: Apr 2010
Location: Clayton MI
Posts: 80,697
Likes: 0
Received 3,171 Likes on 2,924 Posts
Default

Are the O/D and TCC solenoids new as well? (sorry, wasn't real clear on your answer there.)
 
  #9  
Old 11-27-2015, 11:27 AM
ThatJeepGuy's Avatar
ThatJeepGuy
ThatJeepGuy is offline
Registered User
Thread Starter
Join Date: Sep 2015
Location: PA
Posts: 24
Likes: 0
Received 0 Likes on 0 Posts
Default

Sorry, Yes O/D and TTC I put in right before I posted this. Odd side note maybe means something, I have had a P0420 code but I have new o2 sensors and believe a hollowed cat causing the P0420. Maybe a bad tps sensor? Truck has 150K
 
  #10  
Old 11-27-2015, 11:28 AM
ThatJeepGuy's Avatar
ThatJeepGuy
ThatJeepGuy is offline
Registered User
Thread Starter
Join Date: Sep 2015
Location: PA
Posts: 24
Likes: 0
Received 0 Likes on 0 Posts
Default

I did new trans lines too when i put the trans in. I did leave the check ball in hose as it is brand new. Should I take off and drill out?
 


Quick Reply: P 1740 Code 2001 Ram 1500



All times are GMT -4. The time now is 11:00 PM.