Transmission Trouble

[Cannonfodder651]

Hi all,

Got a biggie, real biggy. I lost 3 and 4th gear on the weekend. Had to town my WJ from nowra to sydney. Nrma scanned a bunch of codes

P0731 gear 1 ratio incorrect
P0733 gear 2 ratiio incorrect
P0734 gear 3 ratio incorrect
P0841 transmission fluid sensor sensor
P0161 02 sensor heater switch

Now my mechanic has sussed it out - he reckons a new refurbed transmission for $4k plus labour.

It is a 2003 4.7lt grand Cherokee. 177,000 kms

My options are:
Drop the cash and fix it. ( not going to get a decent grand cherokee for $4k plus what ever money I can get for it at the wreckers ). If I do transplant something will it be to great a risk?
or
Straight to the wreckers and lose out.

My questions are
Has anyone overcome or had something similar? Has anyone got a spare transmission laying around they would like to part with for some dollars?

looking for some loving for my beast, I would hate to see her die.

thanks in advance for advice/comiserations

Cannonfodder

thanks in Advance

[OzJeeper]

I feel your pain. My GC was a clean, good looking beast. Just about everything worked. Put in a new radiator for 1K. Did up the brakes for $500. Drove and purred like a kitten - until one day I got a tap, tap, tap from the lower end.

Big end bearing. Still drive around town OK but don't go over 2000 revs or it may crap itself. So what now????
Car is worth 4K to buy 2nd hand as a 2000 model. Re-motor is going to cost - 5k for a reco donk, at $60 per hour for a mechanic to take out old motor and install the reco is 3k, making 8k to fix it. So mine went to the wreckers as scrap. We live in a throw away world and to fix these cars at $60 per hour in a garage is just not justified dollar wise.
When my CJ6 crapped the donk, I swapped a falcon donk into it. No problem, just a bit of work. No computer, no sensors, no hi-tech. It worked and did OK. Not so now. Throw away due to expense. Not fair, not good, no sense, but that's the way it falls. Get used to the fact that the new Jeeps will not become "old" Jeeps, just disposable commodities. Welcome to consumerism in the new age.
I got a princely sum of $300 for the scrap value. Drove it there. Broke my heart. Current Jeeps have no value for spares as most spares are purchased new for warranty. Wreckers mostly now operate as scrap dealers.
Hope you find a transmission and can do it yourself - that's the cheap way. Best wishes

[alexbrown64]

That can be your speed sensors. Easy cheap fix.

Its quite a common problem.. you just went into limp mode.

You Tube

45RFE and 545RFE use the same speed sensors and both input and output speed sensors are the same and only $60 for both delivered.
http://www.ebay.com.au/itm/121997631...%3AMEBIDX%3AIT

A $20 obd2 reader and the free torque app for you phone would of cleared the codes and got you out of trouble.
http://www.ebay.com.au/itm/ELM327-OB...8AAOSwLVZVrcDw

Cheers

[Cannonfodder651]

Thanks guys,

I hate the tale of woe of new age electronic control stuffing up a perfectly good ride.
Alex I will check it out and post the results.

thanks
Brett

[Shane001]

I'd also add, do you know what the history is of fluid/filter changes, and what fluid was used?
Once you've checked the sensors, a fluid and filter change isn't too expensive, especially if you can do it yourself.

[Cannonfodder651]

Just a quick update,

The tranny had heaps of kitty litter in it, got a second hand one, serviced it and dropped in for $1650.

It feels ok which is good and for some reason seems to idle better. Fingers crossed as I am road tripping to the gold coast next week.

[almc3]

I 've got a 2003 WJ 2.7 CRD in my garage with a cracked head - price to repair /replace head , 2 injectors and 2 engine mounts was worth as much as I paid for the car - I use it for spare parts now and bought a nice WJ Overland with 147,000klms for $6000.00 . I seem secondhand transmissions on ebay for $475 but I don't know if you have to reprogram ECU is you fit another tranny .