I just lost Drive in all gears...very afraid. And LTFT fixed.

[Tikka7mm08]

I just replaced my MAF sensor with one the BMW guys use (still Bosch) as my LTFTs were maxed out on 25. By the time I got to the end of the drive (300m) the LTFT had resolved themselves...cleared lean engine faults and didn't come back on a drive round the 'block'.

http://i761.photobucket.com/albums/xx251/Tikka7mm08/imagejpeg_2_zpsz2m0zsyb.jpg (http://s761.photobucket.com/user/Tikka7mm08/media/imagejpeg_2_zpsz2m0zsyb.jpg.html)

Triumphantly returning the truck to the haybarn and clearing a lip gave it bit more juice and revved as in neutral...tried all gears inc low range forward and reverse and it just revs like it is in neutral.

Was running perfectly! I am really worried. No faults on OBD or dash.

Has my transmission/gearbox buggered itself somehow?

Please Help :(

[Hoges]

Assuming that you do not have a heavy leak from the transmission and there is sufficient oil then it sounds like the transmission pump has died... = transmission rebuild:( could be worth an extensive internet search to see what the "experts" advise. There is a lot of info on zf4hp22/24 transmissions. Very disappointing.

[Tikka7mm08]

Sounds like many 1000s of $...

[bee utey]

If your park stop still holds in low and high range then it's the trans that's dead. If park doesn't hold then it's the transfer case. I remember reading on here about a P38 stuck in the bush with a stripped spline on the viscous drive, ended up being fixed out in the bush and driven out. Apparently relatively easy to do without removing anything major.

Edit: here it is: http://www.aulro.com/afvb/technical-chatter/126178-urgent-help-needed-rr-broken-up-bush-2.html

[Tikka7mm08]

UPDATE

Started her this morning and had a little movement in drive...garage is slight uphill so into low range 1st and managed to get her in under her own steam...after a minute though she is revving in as though in N no matter what gear. In Park she holds.

What am I looking at here?? Neither prop turning when in drive on idle.

[mike 90 RR]

in the bush with a stripped spline on the viscous drive,

I've suffered the "Stripped output shaft spline" syndrome ... The sign was a grinding noise with the auto in D (Drive) accompanied with no movement.

[Tikka7mm08]

I just got a win by replacing the rear amp and getting sound again...needed.

I confess I was just rolling back a little when I put her into Drive...but so slow surely wouldn't strip output shaft? I am on rangerovers.net too and about to check trans fluid as suggested starting point.

[wayneg]

Sorry to hear of your woes on the gearbox front. I have limited knowledge of Autos apart from fluid and filter changes. I recall someone before having a suspect pump and it was suggested to remove the cooler return line, run the engine for a short period and see if there is oil pumping out. I am sure you know the fluid level is checked with the motor running.
If in the slim chance you get to suspect the gearbox ECU, I have a recently acquired spare from a 2001 car I could loan out
Mike90rr knows his stuff, I remember him losing all drive and subsequently diagnosing and replacing the output shaft.

[Tikka7mm08]

Actually no, I checked the level with the motor off and a liter came out on me...just as well I was already in the pink. My 02 doesn't have a return feed I think?

[wayneg]

See.............How to service the transmission on a P38 Range Rover 4.6 (http://www.instructables.com/id/How-to-service-the-transmission-on-a-P38-Range-Rov/)

[Tikka7mm08]

Yep...should I drain it all out or just top up...seemed pretty clean.

[ian4002000]

It may be a torque converter problem, or a broken flex plate . But I would have thought you would get some noises.
What did you do to the car before it had the problem ? why where you test driving ?
Have you undone what you fixed ?

[Tikka7mm08]

Torque convertor is spinning fine. Was parking truck in garage after replacing MAF.

[Armitage_Shanks]

I had the exact same thing happen in a Pajero.
Turned out to be a clogged filter screen in the tranny.
Changed the filter and the oil.
Good as gold.

[Tikka7mm08]

Wouldn't that be great! Is the filter replaced in the trannt kit from Repco??

[wayneg]

The filter kit should have a filter, o rings and sump gasket. The Gasket is thick rubber and you most probably would get away using the old one if you cant get one easily.
Range Rover P38 ZF Automatic Transmission Gearbox OIL Filter KIT RTC 4653 Auto | eBay (http://www.ebay.com.au/itm/RANGE-ROVER-P38-ZF-AUTOMATIC-TRANSMISSION-GEARBOX-OIL-FILTER-KIT-RTC-4653-AUTO-/290906549141?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item43bb61ab95)

[Tikka7mm08]

Just got the Repco kit...picking kids up from school now and going to fit shortly...fingers crossed.

[Tikka7mm08]

Well bugger. Filter fitted...took 2.8l fluid. Started truck in N removed bung while idling and fluid overflowed...it obviously isn't been drawn through the system. Booked in at transmission specialist.

http://i761.photobucket.com/albums/xx251/Tikka7mm08/20140915_151317_zpsetv6vnnr.jpg (http://s761.photobucket.com/user/Tikka7mm08/media/20140915_151317_zpsetv6vnnr.jpg.html)

[wayneg]

When you fitted the maf and were running checks did you rev the engine hard whilst stationary?

You say you filled with 2.8 ltrs, In my experience you get about 5 litres out with a sump off oil change, re-filling takes 4ish to start then the last ltr with the engine running having run it up and down the gear selector a few times

ZF 4HP22 AUTOMATIC GEARBOX FREQUENTLY ASKED QUESTIONS | For Land Rover Enthusiasts (http://www.paddockspares.com/blog/zf-4hp22-automatic-gearbox-frequently-asked-questions/)

[Tikka7mm08]

Not after fitting the MAF... I did rev to 3000 and over (sticky throttle cables) to test old MAF. Was using truck for a couple of weeks afterwards no trouble.

[wayneg]

Not after fitting the MAF... I did rev to 3000 and over (sticky throttle cables) to test old MAF. Was using truck for a couple of weeks afterwards no trouble.

I am sure someone recently warned against this recently, cant recall why,I am sure someone could explane

[TheTree]

It's to do with pump pressure and I believe the late models had a mod done to them to stop this happening

This was the thread and link

http://www.aulro.com/afvb/p38a-range-rover/200326-revving-engine-3000-zf-safety.html

Steve

[Tikka7mm08]

Thanks Steve...not sure that was the cause unless issue eventuate soon after rather than immediately at the time of revving.... I will report back so the thread can be closed out.

[Tikka7mm08]

:(

http://i761.photobucket.com/albums/xx251/Tikka7mm08/20140917_072901_zpsumwv18ae.jpg (http://s761.photobucket.com/user/Tikka7mm08/media/20140917_072901_zpsumwv18ae.jpg.html)

[TheTree]

Damn mate I hope it gets fixed without spending a heap of money!

Steve

[Tikka7mm08]

Thanks Steve....the auto store have already got on the job and suspect the pump. Their test is to drop the pan and smear uptake with grease to see if it gets taken up!

I pulled the old filter apart and those metal filings look ominous.

The shop say best case is $2500 for just the pump but they don't warranty it unless they overhaul and can't price til they are in there to see what needs doing :(

It makes no sense to me to just fix the pump if there is a chance it could stop again?

http://i761.photobucket.com/albums/xx251/Tikka7mm08/20140917_093633_zpsdm3pc7hf.jpg (http://s761.photobucket.com/user/Tikka7mm08/media/20140917_093633_zpsdm3pc7hf.jpg.html)

[TheTree]

Mate it might be better to look for a second hand transmission

Steve

[davidsonsm]

Yep. I'd be looking to simply swap out the whole transmission. Sorry to see this. You must be a little peaved - having just bought it.

[Tikka7mm08]

Fellas I don't think there are many 2nd hand transmissions here in NZ... and if so what might I be getting? You have to be philosophical when you collect Landies... otherwise I would be sitting facing a corner rocking back and forwards while sucking my thumb today.

[davidsonsm]

Good attitude to have. Hold off on the pencils up your nose and the underpants on your head - just for the time being.

I'd certainly be trying to scour the breakers yards. Wonder what shipping from AU would cost? An ebay search of the Aussie ebay site found 4 AT's - ranging in price from $299 to $650. They're normally pretty tough (unburstable) boxes, but like anything, if its not fed clean oil - it'll crap its pants.

Hopefully the garage come back with some positive news.

[Tikka7mm08]

Update:

Pump died due to flexplate breaking apart which allowed TC to have slop damaging a part they can't get in NZ and to bring in is $2000. Don't ask I don't know the part.

Good news sourced local transmission for $650 inc t. case so will have that as spare.

Bad news is will still cost $2500 to fit the replacement transmission inc their time to date to pull etc broken tranny. Could have been worse...?

[Hoges]

Good news/bad news I guess. Hopefully the replacement transmission will give you good long service and the pain of haemorrhaging $$$$ from your wallet will become a distant memory as you enjoy the eccentric world of the P38! :D
Keep in touch with the rest of the eccentrics here!
cheers

[mike 90 RR]

Pump died due to flexplate breaking apart which allowed TC to have slop damaging a part they can't get in NZ

In your Thread .....
Jinx Broken P38 Bought & Guess These Items
http://www.aulro.com/afvb/p38a-range-rover/204180-jinx-broken-p38-bought-guess-these-items-3.html

You wrote .....

It drops down nicely but if you floor it then she shakes and feels like your driving on a rumble line. Ordered halo plugs so hoping that will smooth her out.

I guess this is what that Shake n rumble was all about .... Ye good ol flex plate .... ;)

[Tikka7mm08]

Yes I think so...

[Tikka7mm08]

UPDATE:

The transmission experts just called me. The trans they told me to buy they fitted and found it is a different length and squashes the torq conv... seems last 3 serial numbers or such different and didn't realise would be a problem. Another Landy outfit said the spacers might be different and a mod on the existing one might be possible. The experts are looking at freighting the replacement trans back for a refund. I told I am pretty ****** off and best I call back after I cool down. Otherwise it is back to square 1 with no replacement and no Rangie forseeable future. On the upside wife's new Disco 4 SDV6 is brilliant.

[Scouse]

According to this post:
3.0 TD6 Engine Install Conversion into P38 - Page 5 (http://www.rangerovers.net/forum/7-range-rover-mark-ii-p38/7431-3-0-td6-engine-install-conversion-into-p38-5.html#post86089)
later 4.6s had a shorter torque convertor compared to the earlier cars.


Is it possible that this is your problem?






PS: I hadn't heard of this before. I knew the 4HP22 was shorter than the 4HP24 but I had no idea the convertors changed between 4.6s.

[Tikka7mm08]

Yes mine is an '02 but I am hoping it is possible to modify... yes they must have changed, God only knows why. Mean if you have the later year you can't swap over a 4.6 trans from an earlier (pre-'99?) year. Not helpful.

[Rupert Prior]

there is a difference in length is between 4ltr and 4.6ltr transmissions. the 4ltr torque converter is shorter so they install a spacer on the crank.

[Tikka7mm08]

No this is 4.6 onto 4.6.

[ashtrans]

The autoboxes are ID'd by the last digits of the second number down on the side ID plate, early ones with the big converter are the 061 and 064, later 4.6's had the same smaller converter as the 4.0 and were 065's

Do you know the numbers of the old and new? if you keep the converters with them you can interchange then if you also change the spacer between the starter ring gear and the flexplate

Dave

[Tikka7mm08]

Thank you! See below from trans people...thoughts:

"Your transmission ID number is*1043 030 065
and the replacement transmission ID number is***1043 030 061

Are you happy for me to fit the replacement transmission if I can set up the drive plate to converter clearance."

[ashtrans]

Hi,

You need to turn 5mm off the spacer from 12 to 7mm thick then use the 065 sump as it's the later non dipstick type,

That's all, will be fine

Dave

[Tikka7mm08]

Dave if they can make this work I am sending a box of beer to you from New Zealand.

[Tikka7mm08]

UPDATE:

Just got a call from the auto transmission people and the RR is all fixed and they are very happy with it. Ashtrans can you please pm your address as I would like to sort something out by way of a thank you for extremely helpful advice. Woohoo!!

[TheTree]

good news mate :cool:

[mtb_gary]

Great news, now it's time get out and enjoy the ride

Gary

[mike 90 RR]

Ashtrans

Ashcroft Transmissions (http://www.ashcroft-transmissions.co.uk/contact-us.html)

[Tikka7mm08]

...postage just went up.

[daf11e]

Glad she's (he's) back.....hoping you get many months before the next!

[Tikka7mm08]

Cheers...definitely a she!

[davidsonsm]

That's a great result. Glad it's work out. You'll forget about the cost. Eventually.

[Tikka7mm08]

If I do my wife will remind me....

[Tikka7mm08]

Look who's back! Thanks all for the support :)

https://www.aulro.com/afvb/ (http://s761.photobucket.com/user/Tikka7mm08/media/20141019_120120_zpsk4remrce.jpg.html)

[davidsonsm]

What an impressive fleet. Jealous. Glad you saved the P38. I'm sure plenty wouldn't have.

[TheTree]

Well done mate ! Quite a lineup you have there :D

Steve

[Tikka7mm08]

Cheers.... just the clutch on the S3 to sort and all running and road legal.

[ashtrans]

2 bottles of New Zealand wine arrived today !!!

thanks very much,

Dave

[Tikka7mm08]

Hope you enjoy them - thanks again Dave.

[TheTree]

2 bottles of New Zealand wine arrived today !!!

thanks very much,

Dave

I am sure they will be a very fine vintage :cool:

Steve