Check engine light is on. The code is p0734, gear 4 ratio incorrect. When going into 4th grear all of sudden the car kicks back into 3rd gear and gets stuck in their for the rest of the time unless I stop and put the car in park and turn the ignition off for 10 sec and start it back up is fine again until I hit 4th gear again it will do the same thing. Please help.
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
SOURCE: 2002 hyundai accent codes p1529 and p0734
P1529 means nothing more than the TCM (transmission control module) has
requested that the ECM (engine control module) turn on the check engine
lamp.
P0734 basically indicates that your transmission is slipping.
You need to take this car to an authorized repair center for hyundai cars. Replacing the filter and fluid on the transmission might save this transmission but I would be willing to bet that a total transmission rebuild is in order.
Good Luck
SOURCE: vehicle wont change up into gear reverse gear not
P0734 - 4th gear incorrect ratio. P1529 Malfunction Indicator Lamp Request. Problem is in the transmission.
Take/Tow your vehicle to an authorized Hyundai dealership and pay the diagnostic fee... they will tell you exactly what the problem is and the cost of parts/labor to fix it... at least this way you'll know what the problem is and what's required to fix it.
SOURCE: 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.
SOURCE: I have a 2005 Hyundai
Definitivelly the trans is going bad and slipping. Thats what the codes mean. Theres not much that can be done from the outside. If you choose to fix it, id go with a good used to keep costs down. You can locate one at www.car-part.com
All codes are for the trans slipping. If a sensor was out, you would have certain codes that say which one.
For instance if a speed sensor was out, you couldn't have the two codes
you have now as the speed sensor has to work in order to generate your
codes now.
I would check your fuses. Check the connector to the transmission check
the harness for any chaffing against the trans case where the wires
could be shorting out. If all of that looks okay I would check the
internal harness by removing the trans pan then replace the valve body
which includes all of the solenoids. If all of that doesn't work its an
internal failure and the trans must come apart for inspection and
repair. As a rule of thumb if its intermitant its probably electrical
if it does it at all times it could also be internal.
Keep us updated.
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:
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:
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I found this video tuto It may work for youhttps://www.youtube.com/watch?v=1Ds7yv2-...
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