p0732??? 2nd gear ratio incorrect?? what to do?!?! - JeepForum.com
 
LinkBack Thread Tools
post #1 of 3 Old 11-23-2009, 09:15 AM Thread Starter
kmd1776
Registered User
2004 WJ 
 
Join Date: Jan 2008
Location: long island
Posts: 842
p0732??? 2nd gear ratio incorrect?? what to do?!?!

my roommates 07 wk 4.7 just threw an engine code p0732 which is "2nd gear ratio incorrect" i have never encountered this code before and have no clue where to start with this problem... is this a common problem with the WK's? what are ur guys suggestion on where to start??


04 wj limited; 4.7L V8, 247> 242hd swap; Hayden auxillary tranny cooler; BFG All Terrain 245/70/17; Moog Up-Country Coil Springs; Monroe Reflex Monotube Shocks; JKS BPE's; Chrome Overland tow hooks; Dynomax Ultraflow catback
kmd1776 is offline  
Sponsored Links
Advertisement
 
post #2 of 3 Old 11-23-2009, 10:47 AM
robpp
Registered User
 
Join Date: Oct 2007
Location: Colorado
Posts: 1,267
from a 2007 manual:
Theory of Operation



The transmission system uses two speed sensors, one to measure input rpm and one to measure output rpm. These inputs are essential for proper transmission operation. Therefore, the integrity of this data is verified through the following checks:
1) Once in a particular gear, if the gear ratio varies from the correct gear ratio, the corresponding in-gear trouble code is set (DTCs P0731-36 and P1736).
2) An excessive change in input or output speeds indicating signal intermittent may result in the DTCs P0716 and/or P0721 being set.
3) If the common speed sensor ground circuit is lost, both sensor inputs will read the pulses from the input speed sensor when at a stop in neutral. Since the input speed sensor reads 60 teeth from the input clutch hub and the output speed sensor reads 30 teeth from the park gear, the result is an apparent speed ratio of 1:2 and may cause the DTC P1794 to set.

  • When Monitored: Continuously with the ignition on, engine running, with the transmission in gear.
  • Set Condition: If the ratio of the Input rpm to the Output rpm does not match the current gear ratio. This DTC can take up to five minutes of problem identification before illuminating the MIL
Possible Causes
RELATED DTCS PRESENT
INPUT SPEED SENSOR OR WIRING
LOW FLUID LEVEL
CRACKED OR MIS-INSTALLED PRIMARY OIL FILTER OR SEAL
WORN SOLENOID SWITCH VALVE OR PLUGS
STUCK OR STICKING MAIN REGULATOR VALVE
BURNED UD OR 2C CLUTCH
CUT 2C OR UD PISTON SEAL
BROKEN 2C PISTON CASTING
BROKEN OR MISSING 2C BLEED ORIFICE
BROKEN OR MISSING UD BLEED ORIFICE
CUT 2C OR UD ACCUMULATOR PISTON SEAL
CRACKED 2C OR UD ACCUMULATOR PISTON
CUT OR MISSING #5 OR #7 CHECK BALL
TRANSMISSION SOLENOID/TRS ASSEMBLY
BROKEN WELD - REACTION CARRIER TO REVERSE SUN GEAR
MISSING TEETH ON INPUT CLUTCH HUB TONE WHEEL

Rob 007 Laredo 4.7 FFV 27X; DeBadg'd; Zaino'd; SRT8 Grill, Pedals, Strut; ClearBra; WeatherTech; LED Reverse; HIR Hi/Lo; SS Fog; Stealth Turns; 15% Tint; Stubbie; Rear Spoiler; Magnaflow; V1; 22Elite Console/Visors; Body Kit; Color Match Everything; TintedTails; K&N 63; Front Skid; QuickOilDrainValve; BatteryTender; SuperChips 91; Bilstein; Billet Window Switches; Greasable Addco Sways; RamMedic Hood; Fastman TB; BWoody Links; Kicker Upgrade w/Single Sub; AVIC F90BT Hacked; NeffyWrap ABCD; Putco LEDs; Viper 20s w/255/50; R1 Slot/Dimple w/Hawk Pro Ceramic; Whistler Mod w/FlashTech Halos
robpp is offline  
post #3 of 3 Old 11-23-2009, 10:49 AM
robpp
Registered User
 
Join Date: Oct 2007
Location: Colorado
Posts: 1,267
i would check the fluid level properly.

Rob 007 Laredo 4.7 FFV 27X; DeBadg'd; Zaino'd; SRT8 Grill, Pedals, Strut; ClearBra; WeatherTech; LED Reverse; HIR Hi/Lo; SS Fog; Stealth Turns; 15% Tint; Stubbie; Rear Spoiler; Magnaflow; V1; 22Elite Console/Visors; Body Kit; Color Match Everything; TintedTails; K&N 63; Front Skid; QuickOilDrainValve; BatteryTender; SuperChips 91; Bilstein; Billet Window Switches; Greasable Addco Sways; RamMedic Hood; Fastman TB; BWoody Links; Kicker Upgrade w/Single Sub; AVIC F90BT Hacked; NeffyWrap ABCD; Putco LEDs; Viper 20s w/255/50; R1 Slot/Dimple w/Hawk Pro Ceramic; Whistler Mod w/FlashTech Halos
robpp is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the JeepForum.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.



Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Jeep Forums Replies Last Post
Tranmission Code PO731 1st Gear Ratio Incorrect GVSU89 WJ Grand Cherokee Forum 4 08-05-2010 10:10 PM
gear ratio ? jim75 ZJ Grand Cherokee Forum 11 04-22-2009 03:40 PM
trouble code 733 Gear 3 Incorrect Ratio. hard shifting into 3rd kilabeez0 ZJ Grand Cherokee Forum 3 11-07-2008 08:44 PM
gear ratio jhram318 ZJ Grand Cherokee Forum 3 03-20-2008 09:31 PM
How to tell what gear ratio you have? donp ZJ Grand Cherokee Forum 7 06-14-2004 06:17 PM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome