Question about 2001 Chrysler Town & Country

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Won't shift into fourth gear

I change the shift selonoid and both speed sensors, replaced the tcm relay and i am still having the same problems.

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  • whurley1967
    whurley1967 Jan 19, 2013

    did u change filter and fluid and did you use right fluid chrysler uses specal fluid if u put wrong fluid in could cause shifting problems

  • whurley1967
    whurley1967 Jan 19, 2013

    what

  • whurley1967
    whurley1967 Jan 19, 2013

    did you change fluid and filter and did you put chysler trans fluid in.they have specail trans fluid

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  • 16 Answers

Take the van to a transmission shop they can scan it sounds like overdrive might be out

Posted on Sep 05, 2009

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1 Answer

2002 pontiac grand am had 1st and 2cnd gear slippage.i replaced the filter and fluid but now i do not have 3rd and fourth gear it will just not change to the gear


Perform ODBII scan. Look for speed sensor fault. Trans has to read speed to know what gear to engage. Could also be a governor problem. Try shifting from low to high gear manually

May 20, 2017 | Pontiac Cars & Trucks

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I have a Suzuki Jimny automatic 2007. It has 3 buttons to select gear type. None of these are now working.


Start by looking at the fuse box... check all the fuses. Next possibility is a relay.

The Suzuki Jimny Transmission Control Module (TCM) is an electronic circuit component that controls gear shift, TCC lock-up and idle-up according to the signal from each sensor. It is a microcomputer consisting of an IC, transistor, diode, etc. It is installed behind glove box.

1. Ignition switch
2. Transmission range sensor
3. Input shaft speed sensor
4. Output shaft speed sensor (A/T VSS)
5. Shield wire
6. Vehicle speed sensor (VSS)
7. Transmission fluid temperature sensor
8. Shift solenoid-A (Shift solenoid No.1)
9. Shift solenoid-B (Shift solenoid No.2)
10. Shift solenoid-C (Shift solenoid No.3)
11. Shift solenoid-D (Shift solenoid No.4) 12. TCC solenoid (Lock-up solenoid)
13. "O/D" cut switch
14. "O/D OFF" lamp
15. Monitor connector No.2
16. DLC
17. To ECM
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a4263c83-244a-438b-baaa-044b9bd1b782.jpg

Apr 18, 2017 | Suzuki Cars & Trucks

1 Answer

Why am I still getting codes p1529 and po734 after replacing tcm and imput speed sensor when the car warms up?


P0734 is a gear ratio code for 4th gear. In other words TCM sees 4th gear is slipping. P1529? I don't know I'm on my cell phone.

Dec 11, 2014 | 2002 Hyundai Accent

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Won't shift properly


Your probably pulling OBD Code P0758, just like mine is. Ive changed the trans in a customers car now 3 times with the same result. Hard shift into rev and 2 but no third gear. I believe its the TCM or wiring harness. Check to have the TCM Completely flashed and re-written by the dealer, this may help, if Not replace the TCM is my only other options, because I do not believe that 3 transmissions have been bad.

Jul 15, 2012 | 2008 Ford Fusion

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What would cause transmisson only have 2 and 3rd gear and got to manualy shift them and speed odomator doesnt work


The problem is the speedometer is not working and the computer cant tell ****** when to shift as it doesnt know the speed, have the speed sensor on the ****** checked. the speed sensor is the problem in most of these cases and is not hard to replace and i think that will solve your problem. also the check engine light should of come on also, if it did you can have the computer scanned to see if you have a speed sensor code, if you do then that will tell you its the speed sensor,this sensor is also called out shaft speed sensor. heres a picture to help you locate the speed sensor on the ******. good day hope this helps.2_14_2012_6_57_56_pm.gif

Feb 14, 2012 | 2002 Mitsubishi Diamante

1 Answer

I have a 1995 Buick Century 6 cyl. The transmission shifts smoothly and into 4th gear but when I get to about 55 mph it shifts back into 3rd gear by itself and won't go back into 4th gear. What is...


Fourth gear in your vehicle doesn't exist. What feels like a fourth gear is the torque converter locking up. The lockup lockup is controlled by a solenoid in the side pan of the transmission, and the solenoid is controlled by the ECM (electronic control module) in response to several pressure, temperature and speed sensors etc. To determine which component is the problem you'll need a professional transmission mechanic with the proper diagnostic equipment.

Jun 28, 2011 | 1995 Buick Century

1 Answer

My came with a code po734 is that a big problem?


DTC P0734 - Improper Ratio for Fourth Gear.
P0734 is detected when A/T cannot be shifted to the 4th gear position even if electrical circuit is good.

This diagnosis monitors actual gear position by checking the torque converter slip ratio calculated by Transmission Control Module (TCM) as follows:

Torque converter slip ratio = A x C/B

A: Output shaft revolution signal from revolution sensor
B: Engine speed signal from Engine Control Module (ECM)
C: Gear ratio determined as gear position which TCM supposes

If the actual gear position is higher than the position (4th) supposed by TCM, the slip ratio will be more than normal. In case the ratio exceeds the specified value, TCM judges this diagnosis malfunction.

Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
- Incorrect transmission shifting

Possible causes
- Low transmission fluid level
- Dirty transmission fluid
- Shift solenoids
- Transmission mechanical problems
- Transmission hydraulic control circuit

Tech notes: Start by inspecting the transmission fluid level and condition, and change fluid if necessary.


Test and check it and send us ypur comments.

May 14, 2011 | 2000 Land Rover Discovery

1 Answer

Please,can you help me fix cods problems p0732,p0734 on my 2006 Mazda Tribute


P0732 - Improper Ratio for Second Gear.
P0734 - Improper Ratio for Fourth Gear.

This diagnosis monitors actual gear position by checking the torque converter slip ratio calculated by TCM as follows:

Torque converter slip ratio = A x C/B A: Output shaft revolution signal from revolution sensor B: Engine speed signal from ECM C: Gear ratio determined as gear position which TCM supposes

If the actual gear position is higher than the position (2nd and 4th) supposed by TCM, the slip ratio will be more than normal. In case the ratio exceeds the specified value, TCM judges this diagnosis malfunction.

This malfunction will be caused when shift solenoid valve B is stuck open.

Gear positions supposed by TCM are as follows. In case of gear position with no malfunctions: 1 , 2, 3 and 4 positions In case of gear position with shift solenoid valve B stuck open: 4* , 3, 3 and 4 positions to each gear position above.

Symptoms: Engine Light ON (or Service Engine Soon Warning Light)

Diagnostic trouble code A/T 2ND GR FNCTN with CONSULT-II or P0732 without CONSULT-II is detected when A/T cannot be shifted to the 2nd gear position even if electrical circuit is good.

Possible Causes:
- Shift solenoid valve B
- Each clutch
- Hydraulic control circuit


Check it and tell us news.

Nov 23, 2010 | Mazda Tribute Cars & Trucks

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I have a 98 plymouth grand voyager with a 3.3l 4 speed transmission. My van goes into limp mode after a couple minutes of driving. My question is how do I determine if my shift solenoid or my tcm is the...


THERE MUST BE SOME FAULT CODES STORED IN TCM..WHEN A FAULT OCCURS,THE TCM SHUTS THE POWER FEED OFF TO THE SHIFT SOLENOIDS IN THE SOLENOID PACK SO ALL YOU HAVE IS SECOND GEAR(LIMP MODE)..IS YOUR SPEEDOMETER WORKING?IF NOT IT MAY BE THE OUTPUT SPEED SENSOR IS BAD..YOU SHOULD GET TCM SCANNED FOR FAULT CODES..I HOPE THIS HELPS

Sep 17, 2009 | 1998 Plymouth Grand Voyager

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