Question about 2007 Kia Sorento 4x4

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Engine hesitates and transmission doesn't upshift properly

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  • onfixit Sep 06, 2008

    I have 1996 Kia Sportage, engine run very good, but the gear is not shift properly, some time RPM past 3.5.



    please help or any sugestion will appreciated.

  • amp88764 Oct 20, 2008

    put the car in drive put foot on gas it hesitates. doesn`t shift properly and leaking transmission fluid from a front pipe

  • Anonymous Dec 16, 2008

    my 2002 kia optima hesitates and downshifts from 4th to 3rd by itself. I'm gonna try to replace the transmission fluid

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While driving my kia like it bearly drives an goes in the red line even at 35 miles per hr some times the car is good some times its not

Posted on Dec 28, 2008

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SOURCE: The transmission under hard acleration hesitates 99 dodge dieasel

tork converter lock up switch is sticking change oil and put in some lucas transmisson condtioner and change the filter two.

Posted on Jun 26, 2009

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Automatic transmission vehicle speed difficulty?


Parked on the ground, blocking the transmission lever in P position, players pull brakes, then step on the gas pedal and accelerate the inspection of the engine. If the engine speed is increased slowly this time, or up to a certain speed does not go on to mention, that the failure was caused by engine problems, check the engine oil pressure, cylinder pressure is normal, whether the fuel injection system, and each sensor is working properly.
Transmission failure: It may be in the transmission or burned badly worn friction plate, or transmission valve body shift valves, solenoid valves, transmission control computer and its related circuit malfunction, causing difficulty speed transmission upshifts. it is necessary to go to a professional repair shop for maintenance . via greebid.com

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Trans fault comes up on dash bored check engine sing, rench as well reversing works good first gear takes awile dives off after biting the gear hard but good oil and sounds normal still work able? 2005...


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1 Answer

"transmission "slams" sometimes when upshifting.


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2 Answers

The transmission under hard acleration hesitates 99 dodge dieasel


It sounds to me that the clutch material in the transmission might be breaking down. Before too long I would have the transmission rebuilt or replaced. If you wait too much longer the transmission will start to slip and pretty soon you will have NO gears but first and reverse.

Jun 24, 2009 | 1999 Dodge Ram

1 Answer

TRANSMISSION UPSHIFTS WITH A SLIGHT JOLT BUT DOWNSSHIFTS SMOOTH


Replace fluid and filter but add a bottle of Lucus Transmission additive. It will make tranny run cooler, shift smoother, renew bands a seals. Its also good to just put in all your cars to help make them last longer.

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1 Answer

1999 DODG 3500 AUTO TRANS SHIFTS TO 2ND WITH A LITTLE HELP


I have a 1999 Ram B 1500 Van, auto transmission, 5.9 L engine.
Same problem, trans hesitates in 2-3 upshift, sometimes 1-2
to 2-3 upshift. Posts trouble code P1756 - Transmission Govenor pressure too low at below 15 to 20 Psi. Transmission pump shot or valve body leak stops trans from reaching proper pressure to shift, which is minimum 15 Psi.
Either trans is leaking in valve body, valve is stuck, shift solenoid on valve body is sticking, or pump is shot.

Feb 14, 2009 | 1999 Dodge Ram

1 Answer

Transmission trouble


Transmission model is a 4R70W,totally electronic,no vacuum to the trans.A common failure on that transmission is the 1-2 accumulator springs...they break,causing a harsh 1-2 upshift.An accumulator is a mechanical/hydraulic assembly also called an accumulator piston.It is made from steel with rubber lip seals bonded to the steel.The accumulator piston takes a certain portion of the hydraiulic fluid produced when the 1-2 upshift happens,and strokes up and down with springs providing resistance.It acts as a hydraulic shock absorber for the 1-2 upshift,providing cushion.When the springs break,it no longer provides shock absorption,hence the harsh upshift.It is located just inside the trans pan,on the passenger side front of the case.It is retained in the case with a cover and a round snap ring about 2" in diameter.A new piston and springs can be purchased from a transmission repair shop,or better yet,have them check the assembly for broken springs.Good luck

Sep 04, 2008 | 1999 Ford Crown Victoria

1 Answer

Transmission


Hyundai has a TSB for this: 07-40-010 - AUTOMATIC TRANSAXLE HARSH AND/OR DELAYED
UPSHIFT OR DOWNSHIFT". This one will also refer to TSB# 06-40-005 - AUTOMATIC TRANSAXLE CONTROL MODULE -RESET AND RELEARN ADAPTIVE VALUES. either need to be performed by the dealer.

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