Question about 1996 Mazda 626

1 Answer

P0734 (Gear 4 incorrect ratio) 96' Mazada 626 automatic

Recently my check engine light came on. When driving the car it can switch gears fine up until I reach around 40mph. Then it wont switch gears to go any faster. Sometimes it will switch but most of the times it sounds like its trying but doesn't. I put the OBDII scanner in and it came up with one code P0734 (gear 4 incorrect ratio). What should I check for besides the tranny oil and filter? How much can it cost to repair if I have to take it to a shop?

I hope to fix it myself instead of forking it over to a shop.

Posted by on

  • duganfry Mar 31, 2009

    I have the same problem with my 2004 Hyundai accent. The p0734 gear 4 incorrect radio. I wish i can just to the damn light off. Any idea how to shut it off?

×

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Mazda Master
  • 5,759 Answers

More likely is transmission problem it could cost up tp $2000.00

Posted on May 10, 2017

Ad

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Good luck!

Posted on Jan 02, 2017

Ad
  • 1 Answer

SOURCE: auto transmission will not engage in DRIVE gear when starting.

IT IS THE STRAINER INSIDE THE PAN IN THE TRANSMISSION,WHEN ITS COOL THE FLUID IS TO THICK TO TRAVEL AND GRITTY TO GO THROUGH THE STRAINER SCREEN,BUT WHEN THE TRANNY WARMS THE FLUID ITS THEN ABLE TO FLOW THROUGH THE SCREEN AND SHIFT PROPERLY.

Posted on Feb 06, 2009

polarcycle
  • 1392 Answers

SOURCE: 98 Intrepid Gone into "Limp Mode"

There are some sensors on the transmission that tend to go bad. You may also need to check the wiring. Could be a computer problem. How many miles?

Posted on Mar 06, 2009

rcampsr
  • 90 Answers

SOURCE: My Mazda 626 Wont go into Drive

Sounds like you have lost the transmission. There are bands that clamp down to lock the transmission into the gear you want. They are controlled by a hydrolic unit located in the trans. The first thing I would do is have a shop pull the trans oil pan and see if it is full of chips of metal. If so you definately have a problem. At the same time they can look at the bands and see if one of them is broken. another cause would be that metal has gotten into the hydrolic valve body and frozen the drive band portion so it will not function. You may also get lucky and have it be an internal adjustment of the drive band. Good Luck, RAC

Posted on Apr 18, 2009

darkoh69
  • 77 Answers

SOURCE: auto transmition wont go into 3rd and 4th gear

I had the same problem I changed the transmission fluid & put a new filter in the trans, this fixed it good until I put my foot down to overtake the trans kicked down to 2nd gear & the hold light started flashing again & the trans started slipping again. I stressed over it for a day or 2 & then I took it out for a drive & thrashed it, Low & behold it came right. When you change fluid its impossible to get all the old fluid out because the torque converter holds a liter or two under pressure, so when I put my foot down some of the gunk blew through & blocked the pump it looses pressure & cant change gear. You need to get it flushed by a transmission specialist   

Posted on May 11, 2009

  • 11 Answers

SOURCE: Mazda 626 - Hard to shift into gear.

With any vehicle that has a hydraulic clutch, a worn master cylinder or slave cylinder will give this very symptom. First step is to check the fluid in the resivor. If it is low, you will want to check for fluid bypassing the seals. Be sure to check under the rubber dust cover as fluid can collect there and not be readily visible. Also, if the fluid in the resivor is dark colored, it is an indication of the internal seals going bad and you will need to replace the cylinders.

Posted on Aug 17, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

What are the probable causes of DTCs P0700, P0700 PD, P0732 and P0734?


P0700 transmission control system malfunction (failure)
P0732 gear 2 incorrect ratio
P0734 gear 4 incorrect ratio

Check level and conditions of fluid

Sep 20, 2015 | 2000 Dodge Grand Caravan

1 Answer

P0734 Hyundai accent 2003


code p 0734 refers to gear 4--incorrect ratio===causes --wiring---TR sensor/ switch---shift solenoids---transmission mechanical fault
I would check the operation of the transmission ration sensor/switch first as that is the most likely place that the fault is
check engine lights are not solely for the engine but report on transmission problems as well
a transmission mechanical fault is the absolute last that you should consider because the transmission will revert to normal operations until it selects gear 4 which indicates sensor or solenoid problem

Apr 13, 2012 | 2003 Hyundai Accent

1 Answer

My 2000 hyundai elantra is automatic it has a code p0734. which the mechanic explained me that i have to get the speen sensor replace and get new clutch because the 4 gear ratio is bad. pls advice what 2...


P0734=A/T 4th gear incorrect ratio. This has nothing to do with the speed sensor. If the speed sensor was faulty, it would also set OTHER gear incorrect ratio codes. My experience tells me the 4th gear incorrect ration indicates the torque converter clutch (TCC) is slipping and nothing more. Unless there was a speed sensor DTC (Diagnostic Trouble Code), the sensor is not the issue (yet). The fact P0734 was set (trust the computer), the TCC is slipping (out of range). Question: Maintenance history may indicate the wrong transmission fluid may have been introduced. Hyundai's Transmission fluid is strictly SPIII... there is no substitute. The incorrect fluid will cause 4th gear slippage. Now, having said that, it doesn't mean the 4th gear (lock-up) clutch isn't worn out. Have a qualified/certified Hyundai Service Technician properly diagnose this issue.

Sep 08, 2011 | 2000 Hyundai Elantra

2 Answers

What are the automatic transmission problem codes PO 751, PO 761, PO 734 indicate


PO 734 GEAR 4 INCORRECT RATIO
PO 751 SHIFT SOLENOID A PERF OR STUCK OFF
PO 761 SHIFT SOLENOID C PERF OR STUCK OFF

Jul 05, 2011 | Ford Focus Cars & Trucks

1 Answer

Need yo know details codes po734 & po732


p0734- Gear 4 incorrect ratio
p0732- Gear 2 incorrect ratio

Unless you have recently had your transmission replaced with a junkyard unit you are having a problem with the transmission control computer.

Good Luck!

May 10, 2011 | 1996 Hyundai Accent

2 Answers

Code po734, po735


This is what your codes mean:

Trouble Code-P0734 (A/T Additional Gear Ratio Error In Fourth Gear)


Trouble Code Conditions:
Vehicle driven to a speed of 4-37 mph at more than 500 rpm, gear selector in 4th Gear in Drive, and the PCM detected too much difference in the engine speed and output shaft speed.

Possible Causes:

  • Customer may complain of intermittent 4th gear operation
  • O/D and 2/4 pressures less than 75 psi
  • O/D or 2/4 clutch volume indexes out of specification
  • O/D accumulator seals are damaged
  • Transmission enters "limp in" mode running in 4th gear

Trouble Code-P0735 (A/T Gear Ratio Error Fourth Prime)

Trouble Code Conditions:
Vehicle driven any forward Gear, and the TCM detected the ratio of the Input speed to the Output Speed did not match the current Gear Ratio (this test can take up to 5 minutes).

Possible Causes:

  • Related Gear Ratio trouble codes may be stored (note that some of these Gear Ratio trouble codes may be intermittent)
  • Transmission has internal problems or damage present
You have a transmission problem.

Jan 17, 2011 | 2003 Dodge Durango

1 Answer

What do the following codes mean: P0734,P0732,P0715, and P0731. this is the order they came up in the scanner..all I can find is that they are generic codes. Should I be worried I was able to clear my...


P0715 Input/Turbine Speed Sensor Circuit Malfunction
P0731 Gear I Incorrect ratio
P0732 Gear 2 Incorrect ratio
P0734 Gear 4 Incorrect ratio
It seems like you were having an issue with your transmission but if you cleared your light and it has stayed off I would just keep a close eye on it.

Jun 10, 2010 | 2000 Dodge Durango

2 Answers

P0734 Gear 4 Incorrect ratio


USUALLY WHEN ITS AN INCORRECT GEAR RATIO ITS USAULLY A INPUT SESOR AND IF THAT DOESNT FIX IT THEN TRANNY

Oct 06, 2009 | 2003 Ford Focus

1 Answer

Trans drops into 3rd gear won,t shift to 4th


DTC P0734 is "4th gear incorrect ratio" - that's your torque converter 'LOCK UP Clutch" It's worn out (or you're using the wrong Trans Fluid required by Hyundai - SPIII OR Both). The P1624 is simply the Trans Control Unit (computer) communicating to the Engine Control Module (ECM computer) MIL - on request signal to ECM = asking it to turn on "Check Engine" light. MIL = Malfunction Indicator Lamp. When the torque converter 'lock up" clutch slips or doesn't engage, the trans automatically returns to 3rd gear and stays there (it's called 'fail safe' mode) until you cycle the ignition key, then everything resets until the malfunction occurs again.
You'll need to have an AT (Automatic Transaxel) tester hooked up to verify this. Hyundai has a Service Bulletin specifically for "gear incorrect ratio' codes. If when you changed the trans fluid, was it done at a Hyundai Service Center? If not, someone may have installed the wrong fluid.

Jun 01, 2009 | 2000 Hyundai Elantra

Not finding what you are looking for?
1996 Mazda 626 Logo

Related Topics:

697 people viewed this question

Ask a Question

Usually answered in minutes!

Top Mazda Experts

yadayada
yadayada

Level 3 Expert

79186 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22326 Answers

Jeffrey Turcotte
Jeffrey Turcotte

Level 3 Expert

8836 Answers

Are you a Mazda Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...