Question about BMW 525

8 Answers

Zf4hp - 525 BMW Cars & Trucks

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  • 14 more comments 
  • talleresme_j Oct 17, 2010

    HARSH ENGAGEMENT N TO R OR P TOR

  • talleresme_j Oct 17, 2010

    I have not recieved an answer to my problem yet, witch is wiht and zf4hp22 automatic transmission wich problem is harsh engagement,N to R, or P to R.
    Thanks a lot.

    Sinserely.

    jorge mejia.

  • talleresme_j Oct 17, 2010

    excuse me zf4hp22 automatic transmission

  • talleresme_j Oct 17, 2010

    Excuse me the problem is of a ZF4HP22 automatic transmisson.

  • talleresme_j Oct 17, 2010

    I have a problem with a ZF4HP22 automatic transmission wich is istall in a 1989 year jaguar car and the transmission has the problem that is harsh engagement when I change the shift lever from parking to reverse or neutral to reverse. Excuse me I don't know english very well.



    Thanks a lot again.

    jorge mejia.

  • talleresme_j Oct 17, 2010

    Is a ZF4P22 an automatic transmision that is in a Jaguar Sovereign 1987

  • talleresme_j Oct 17, 2010

    I repaired the automatic transmission all toleranses are good, the valve body is put new,and the idle speed is in good calibration (700 rpm).
    what else can be the problem?

    Thanks again

    jorge mejia

  • talleresme_j Oct 17, 2010

    Please tell me if the problem in a ZF4HP22 AUTOMATIC TRANSMISSION that has all clutchs and brakes in good toleranses calibration and have a new valve body install,and that has the problem that when I change the shift lever from parking to reverse or neutral to reverse it makes a strong shake or hard engaging jolt,can the transmission have a one way clutch,a carrier or shaft in but condition and wich one is the problem?.

    thanks.

    jorge mejia.

  • talleresme_j Oct 17, 2010

    Please tell me if the problem in a ZF4HP22 AUTOMATIC TRANSMISSION that has all clutchs and brakes in good toleranses calibration and have a new valve body install,and that has the problem that when I change the shift lever from parking to reverse or neutral to reverse it makes a strong shake or hard engaging jolt,can the transmission have a one way clutch,a carrier or shaft in but condition and wich one is the problem?.Excuse me this transmission is no't an electronic transmission.

    thanks.

    jorge mejia.

  • talleresme_j Oct 17, 2010

    Please tell me if the problem in a ZF4HP22 AUTOMATIC TRANSMISSION that has all clutchs and brakes in good toleranses calibration and have a new valve body install,and that has the problem that when I change the shift lever from parking to reverse or neutral to reverse it makes a strong shake or hard engaging jolt,can the transmission have a one way clutch,a carrier or shaft in but condition and wich one is the problem?.Excuse me this transmission is no't an electronic transmission.

    thanks.

    jorge mejia.

  • talleresme_j Oct 18, 2010

    Jason, please tell me all the situations that can cause harsh jolt ,when you change the shift lever from parking to reverse or neutral to reverse, in a ZF4HP22 non electronic autmatic trans mission.

    thanks.

    jorge mejia.

  • talleresme_j Oct 18, 2010

    the automatic transmission is mounted in a jaguar sovereign car ,1991 year ,L6 4.0L,

  • talleresme_j Oct 19, 2010

    what are the exact causes that produces a hard jolt in a ZF4H22 AUTOMATIC TRANSMISSION non electronic transmission?,when engine is runing and I change the shift lever from parking to reverse or neutral to reverse. This automatic transmission is installed in a jaguar car with a 6.L 4.0L engine, 1991YEAR.

    Thanks

    jorge mejia

  • talleresme_j Oct 20, 2010

    please tell all situations that can cause a hard jolt when the engine is running and I change the chift lever from parking to reverse or from neutral to reverse,in a ZF4HP22 non electronic automatic transmission,witch is install in a JAGUAR car, 1991 year,L6,(6 cylinders in line,DOHC 4.0 Liters ENGINE.
    Thanks again.

    jorge mejia.

  • talleresme_j Oct 20, 2010

    Hi Jason, the ajustment and cheks that you say to do I did them and all are correct, and remamber that the hard engagement is hapenning only in reverse.

    Thanks.

    jorge mejia.

  • talleresme_j Oct 20, 2010

    Thanks Jason, I'm looking the manual

    jorge mejia .

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8 Answers

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A hard jolt is felt because the pressure valve from the oil pump is not releasing the excess pressure and it in turn temporarily forces open the regulating valves for the gears. The transmission must be opened and the oil pump and valve body removed, tested and refurbished - the valves will have to have their seats recut and the springs recalibrated. Or you could replace the entire valve body with a new one.
This is something only a specially equipped repair shop can do - so you will have to go to either a Jaguar dealer or an repair shop specialized in automatic transmissions. And make sure they will install only ZF original parts even if they are more expensive, otherwise you will return very soon to them.

Posted on Oct 20, 2010

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HI!!
THERE IS A VALVE BODY KIT # S69165A Correction kit, ZF4HP22
The ZF4HP22 Clutch correction package is used to reduce cross leaks at the turbine shaft. Cross leaks can partially apply the FWD clutch when the transmission selector is in in Park or REV, causing BURNT FORWARD CLUTCHES & SLIPPING.

Helps correct burned forward clutches, slipping in drive, reverse only, creeping in neutral, short life rebuilds.

Kit includes the no go tool to test stator support condition. Custom composite teflon stator rings. Buffer wheel and forward clutch piston modification information with drill bit.

THIS KIT IS ONLY $65 HERE http://www.makcotransmissionparts.com/ZF4HP22.html.
A HELPFUL - 4 THUMBS rating for this solution would be greatly appreciated. Thank you for using FixYa.

Posted on Oct 20, 2010

  • Rene J Solis Oct 20, 2010

    I know you just installed a new valve body. But the problem is not related to the valve body. Your problems are the leaks at the turbine shaft and the forward clutch piston that needs to be modified. This is a common problem for that transmission, it does not matter if it is installed in a Jaguar, a BMW or a Volvo. We know the problem and the solution is there.



    Keep me posted!!

  • Rene J Solis Oct 20, 2010

    Hey Jorge, si ocupas ayuda en español dejame saber.

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Hello. thanks for choosing Fixya! we sincerely want to help you. Please restate your problem and include the year, make and model of your vehicle. What showed up as the problem was only "zf4hp". that alone is not enough to go on. Sincerely, Joe

Posted on Oct 19, 2010

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Please, send us additional details.

Posted on Oct 18, 2010

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Hi

Not to sure what you are wanting here, could you clarofy this for me.

Thanks

Jason

Posted on Oct 18, 2010

  • Jason Maurirere
    Jason Maurirere Oct 18, 2010

    Hi Jorge,

    One of the main problems with harsh engagement of the gears in a Automatic transmission is one of the following:
    1. Check your Transmission fluid pressure and flow rates, this is a vital factor in smooth transmission shifting.
    2. Check that your Converter Clutch valve is operating correctly and that there is no fluid bypassing which means you need to replace the gaskets and seals.
    3. Also make sure that your kick system/cable from your throttle control area is adjusted correctly.

    If you need further information please let me know.

    Thanks

    Jason

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Hi.. May i know the issue here?

Posted on Oct 17, 2010

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  • BMW Master
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What does ZF4HP mean, this is not a question, in fact don't know what it is, ZF is a type of transmission

Posted on Oct 17, 2010

  • 5 more comments 
  • yadayada
    yadayada Oct 17, 2010

    ZF4HP

  • yadayada
    yadayada Oct 17, 2010

    the most common cause of this is them engine idle is to high, have the automatic idle speed control system tested with a scan tool at the BMW dealer to determine the cause. Please give a complete question in the future, ZF4HP gives no useful information as what the nature of your dilemma is..

  • yadayada
    yadayada Oct 17, 2010

    correction, the most common cause is the engine idle speed is to high.

  • yadayada
    yadayada Oct 17, 2010

    add

  • yadayada
    yadayada Oct 17, 2010

    I have 45 years of auto repair experience and if the idle speed is within spec then the problem is in the transmission, I suspect a sticking check ball or broken check ball spring, very hard to say with looking at the problem with my own eyes, this will require a dealer to test the transmission pressures and also the electronic controls for a fault. You will not get this fixed over this keyboard.

  • yadayada
    yadayada Oct 19, 2010

    then u did something wrong like like leave out a check ball or cut a seal..

  • yadayada
    yadayada Oct 20, 2010

    tear the transmission down and figure out what U did wrong.

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  • 2,299 Answers

Not sure what you are asking. Please explain.

Posted on Oct 16, 2010

  • Rodney Clark
    Rodney Clark Oct 20, 2010

    Are you wanting a manual for this transmission? Or what are you wanting to know about it?

  • Rodney Clark
    Rodney Clark Oct 20, 2010

    I see now that I answered that the transmission is jerking when shifting.
    The transmission jerking when engaging in gear is usually not the transmission. And is usually the engine. If the engine is idling too high then when you change gears it will ****. Does the motor sound like it is running fast? Should idle at about 700 rpm's on the tachometer. If the car is idling too high this will cause your problem.

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