Yeah, the battery is fine. At least my multimmeter tells me.

I had the fluid changed and it didn't cost much. Ford Dealer did it locally and they knew it took Mercon V. So I assume they put Mercon in it. Assume.

Since the flush I occasionally get a bit of a kick in the pants when I lift off the throttle after accelerating. Like say 3 times in 10kms of city driving. Kick in the pants you say? Feels like a bump from behind. A thump - as it tries to let go when I close the throttle.

If they put wrong fluid in it would it cause this? I know little about auto transmissions. The dealer (that's half an hour away) will be a probable trip but I am sure some code interpretation will be introduced as they fish to see if some dummy will spring or a $5000 trans on a $10000 car.

Car selects gears ok all this time but tonight the gearbox fault light came on and when reversing into my spot, going back into drive gave a serious thump.

The gearbox fault message only came on once in a while in Economy. In Sport it never came on until recently. I swear the fluid is wrong. Am I nuts?

 

cosworth
I am assuming we are talking about the Ford 5R55N transmission.
Some of the many faults experienced with this unit is due to the original fill prior to May of 05. Ford released an additive package 4L2Z9-19B546-AB & fluid XL with bulletin FSA 04B22. To install in customer vehicles and new inventory. Then came a final solution with a later Mercon V as revised (XT-5-QM)--comes in a black container.
It was advised at one time to remove all traces of the old fluid from the transmission to improve serviceability, since it seems the original fluid was responsible for valve wear affecting both shifting quality and torque converter operation.
One of the most important aspects of this unit is that battery grounds, a re-learn strategy, the PCM and the mass air flow sensor often needs cleaning at a transmission service to ensure smooth operation.
Check with your Ford dealer on what they filled with and did they do a re-learn etc.
Dennis

 

Well when I picked the car up the car had a dead battery. I doubt they bothered to relearn the gearbox. I also have had a persistent p1633 code that they wipe successfully when I get an oil change. I bought a new battery and it didn't go away with my OBD reader/clearer.

Ok, I now think this is what is going on. The engine light that comes back between oil changes is affecting the ability for the trans to learn and hold a shift pattern.

Ask the dealer why the clear the code and all is well with no "repair" needed.

Well at least I hope that it's software....

 

How do you do a "re-learn'?

 

gbdiver
Actually Factory Jaguar posted a an "adaption procedure" on this forum on
Jan 2008. Simply scroll back to observe the method.
Dennis
p.s If you don't find it repost and I will look for it
D

 

cosworth
p1633 is KAM "KEEP ALIVE MEMORY" I would expect to see that when the battery is flat or gone flat.
Clearing the code should have eliminated that code.
Dennis

 

Dennis,

Is this the post you were talking about?


10. Carry out the adaption drive cycle road test as follows:
• Ensure the vehicle is in normal mode (not sports mode) and the following conditions are met.
• Conduct the test on a flat road.
NOTE: The transmission fluid temperature must be above 60°C (140°F) and below
100°C (212 °F)
• Ensure the vehicle is at normal operating temperature so that the transmission fluid temperature is
above 60°C (140°F).
NOTE: The accelerator pedal may not be moved during shifts.
CAUTION: The 1-2, 2-3, and 3-4 shifts must occur with engine speed between the specified
limits.
• Accelerate from rest with light steady throttle without exceeding the following upper rev limits for
shifting in the table below.
3.0L
VIN ALL
4.2L N/A
Prior VIN
G13962
4.2L N/A
From VIN
G13963
4.2L N/A
Prior VIN
M96321
4.2L N/A
From VIN
M96322
4.2L S/C
Prior VIN
M96315
4.2L S/C
From VIN
M96316
1800 - 2000
rev/min
1450 - 1600
rev/min
1550 - 1700
rev/min
1600 - 1700
rev/min
1550 - 1700
rev/min
1450 - 1600
rev/min
1550 - 1700
rev/min
• Continue to accelerate gently to 50mph (80km/h) so that transmission shifts into 5th gear.
• Go into overrun and let the transmission shift down into 4th gear without braking.
• Brake gently to a standstill and hold footbrake on for at least 15 seconds.
11. Repeat the Step 10 procedure at least five times.

__________________

Mark

 

Mark
Yes that looks like it!
have fun!
Dennis

 

KAM is a Ford code. Says you have a dead/bad battery or battery ground. I bought a new battery, let the car sit overnight with no power and the code came back right as I started it up with a new battery. So, I have neither. The Jaguar code for 1633 states that it is a dead or malfunctioning computer.

I think I'll just take it to a dealer and ask them. This is one of those issues that the internet can't solve quickly.

 

cosworth
You are wise to get it checked out.
Battery and charging problems, bad connections, and charging woes all contribute to current surges; influences like overcharging, current spikes & such like can often affect the electronic controllers in most modern cars. Even starting the car with a battery charger connected will in some case cause the ECM to shut down due to overvoltage inputs.
The ECM's these days are designed to work within a narrow range of voltage and any deviation will cause the internal circuitry to shut down the unit to protect it and avoid an expensive failure. That shut down however short in most cases causes a fault to be recorded and mil light flag (check engine light).
Often I have seen mechanics condemn a controller when outside influences have created the fault.
Dennis

 

I know I am going to feel a little stupid after getting the answer. Alas it is not hitting me in the face right now.

Here is the procedure to carry out the adaption test cleaned up a little;

10. Carry out the adaption drive cycle road test as follows:
Ensure the vehicle is in normal mode (not sports mode) and the following conditions are met.
Conduct the test on a flat road.
NOTE: The transmission fluid temperature must be above 60°C (140°F) and below
100°C (212 °F)
Ensure the vehicle is at normal operating temperature so that the transmission fluid temperature is above 60°C (140°F).
NOTE: The accelerator pedal may not be moved during shifts.
CAUTION: The 1-2, 2-3, and 3-4 shifts must occur with engine speed between the specified
limits.
Accelerate from rest with light steady throttle without exceeding the following upper rev limits for shifting in the table below.
1800 – 2000 rev/min
1450 – 1600 rev/min
1550 – 1700 rev/min
1600 – 1700 rev/min
1550 – 1700 rev/min
1450 – 1600 rev/min
1550 – 1700 rev/min
Continue to accelerate gently to 50mph (80km/h) so that transmission shifts into 5th gear.
Go into overrun and let the transmission shift down into 4th gear without braking.
Brake gently to a standstill and hold footbrake on for at least 15 seconds.
11. Repeat the Step 10 procedure at least five times.

What I am at a loss for is, do I change gears, let the transmission change itself. Hold the engine at these RPMS and wait? There are 7 RPM limits, am I supposed to go up and down the gears?

Sorry guys; I am at a loss on this one.

Mark