Re: [Peugeot-L] ZF4HP22 Transmission Problems

From: Charles Lincoln <clincoln_at_spiritone.com>
Date: 06/03/05

On 6/3/05 3:13 PM, "Bob Bruce" <bobbruce@mts.net> wrote:

Oops
I hope you only did it for a few seconds
>
> It was brief. Just long enough to determine (what you address next). While
> on the subject, it was my recollection that the rev in park/neutral issue is
> only such if done with out a ³rest² interval with the engine off. Do i infer
> that in gear with brakes engaged is hazardous also?
>

I will explain A basic test for these transmissions is to stand on the brakes and the gas
simultaneously while in drive. If much is well the trans will hold the engine at about 2000 rpm.
>
> Never recall coming across that diagnostic technique in the many years on the
> list. Good to know.
>

So Maybe there is nothing wrong with the trans at all
>
> Hope so!
>

maybe the brakes are stuck or busted and jammed? If it a SW maybe the U joint is busted and jammed? Or the diff is busted and jammed?
Or like you say maybe the Park pawl is somehow staying engaged while the trans gets into drive?
I think all of these senarios will give you the same result  

> Perhaps is was Park Pawl issue and the Basic Test freed a sticky spring? In
> which case the trans fluid change should help.
>

I am not positive if the park pawl mechanism is through the pan or inside the tail housing.

Is there any change when going from Drive to Reverse??  

No.

I think based on time of email transmissions your reply was before I gave my update on the transmission working, so I donıt know what other diagnosis I can do at this point other than examining drained transmission fluid and the pan. (Iım going to start a new thread on parts to keep on hand ­ but a transmission pan leak I can handle for a week or two; and another early flush wonıt hurt.)

Well, my Saturday plans are now firming up. At least I can now get the Pug in the garage!

  • Charlie

P.S. After many years of being a die hard plain-text only for email advocate, Iım starting to bend. Any feed back on formatting welcome ­ I can easily go back to the >, >> etc. formatting.

[Non-text portions of this message have been removed]

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