Gearbox Overheat Fault

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GazNicki

New Member
Posts
15
Hello guys,

Wondering if someone could give me some advice on the "Gearbox Overheat Refer Manual" fault.

I have changed the car battery yesterday as the previous one died. I ran the car last night for a half hour drive and parked up outside the house overnight. This morning I went to move the car (we have parking restrictions outside the house) and immediately I was granted with the message about the gearbox overheating.

Obviously the Gearbox can't be overheating as the vehicle has been stood overnight. The weather is cold, windy & wet so it's not the baking heat that has caused it.

Does anyone have any advice? I am by no means a mechanic, nor do I know many abbriviations of engine parts or codes; so if someone could give me some no-nonsense advice pleae I would be much appreciated.

Regards,

Gaz
 
While assumption is the mother of all ... I assume it was fully charged. It was a new battery and I don't have a voltmeter to test.

Would you advise a long run to allow the alternator to charge the battery???
 
Thanks for the advice, I will take it out on a long run (don't have a battery charger either :S)

How long of a run would be sufficient to charge a battery to max capacity??
 
GazNicki said:
Thanks for the advice, I will take it out on a long run (don't have a battery charger either :S)

How long of a run would be sufficient to charge a battery to max capacity??
Click to expand...

How long is a piece of string? Depends on how flat the battery is. If your car is a V8 it would be cheaper to get a battery charger:rolleyes:
 
How long is a piece of string? Depends on how flat the battery is. If your car is a V8 it would be cheaper to get a battery charger
__________________
Blimey it would be cheaper to buy a another new battery:D
 
storm99 said:
Alcohol, Tobacco and Firearms.
Click to expand...

Ha ha ha ! leave the poor guy alone!

it stands for "Automatic Transmission Fluid" it the fluid in your gearbox that lubricates the gears. if its low you possibly might get a reading like that.

if your driving a pre 1999 P38 the dipstick will be in the engine bay, if its a post may 1999 put the suspension up to full height open the nipple on the auto box and top up with "ATF" until it dribbles back out the hole, close it then start up the engine and shift through the gears. that should be all it take, if the problem persists find someone close by that has diagnostic software. but i would start with what the others say about the battery needing a charge.
 
Ha ha, thanks for the info guys. "Alcohol, Tobacco and Firearms" I nearly pmsl but really smiled with the Google photo lol.

P38_Ireland - Thanks for the indepth guide.

I will check the ATF today and see if it needs a top-up. Also the battery will be double and triple checked. Is there any electrical connectors local to the battery that I could have disturbed when changing the battery??

It just seem weird that the warning comes on instantly when the ignition is on rather than after a small distance. The engine is ambient temp (roughly about 4C at the min) and it still instantly fires up the message ...
 
Low ATF will not cause a "Gearbox Overheat" message the instant you turn on the igniton. A bad connection or a duff sensor would. Take the cover of the fuse box and have a good sniff to see if you can smell burnt plastic.
 
Although my manual states the dipstick for the ATF is under the bonnet ... it isn't. Nice. So this hasn'r been checked. As I came here to review the location of it other than under the bonnet, I noticed Datatek's comments.

Datatek:
The fusebox under the right seat doesn't smell of burning plastic, and I have checked the fuses for the Automatic Gearbox ECU and the Transmission ECU and both are fine.

The one under the engine bay though smells of burnt plastic rather heavily. Am I safe to go one-by-one on the fuses removing and checking or is there a better way? There are also larger yellow boxes aswel as fuses. Are these relays, and could it be one of these?? The Owners Handbook only mentions the fuses not the larger ones.

Thanks again to all for the advice so far.
 
Thanks for the link, some interesting reading.

As a result I have checked LR6 and LR7, and while the smell of burnt plastic is there the Relays look good.
Its dark out now, so I will have to check the rest tomorrow. Will I be safe to remove the relays and/or Fuses one-by-one to check for fault? There isn't anything there that would kill the car if I removed it and replaced it is there??
 
Its a V8 (4.6)

I'm willing to check everything I can without forking out to a Mechanic at the moment, but need to get it fixed sooner rather than later :(
 
Right guys, it's early doors I know but the sun is up (of a fashion) and I can see. So back to the fuse box I went and removed LR7 first.
Plastic is melted! Cack!

OK, so the relay is in mint nick and the melt on the board aint too much to look at, but its a fault that I can see.

I know LR7 and LR6 are for Fans of some sort, but if there is damage to the Fuse Box, then would this be the most likely cause of faults?
 
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