Jedd

Active Member
Hi guys need a little help, RR 5-0 supercharged, getting gearbox fault on dash, will not kick down unless I turn ignition off the all's good, until next day, then switch off and all's good, any ideas please, Rob
 
Would start by asking when was box last serviced and is your battery tip top condition.
We got “trans fault” a few times and it was the beginning of a weak battery.

J
 
full service 8,000 miles ago, will check battery see what its showing, thanks
 
Battery well charged at 12-70 volt I'm thinking it's electrical as when I switch off and restart it's OK, Rob
 
Battery well charged at 12-70 volt I'm thinking it's electrical as when I switch off and restart it's OK, Rob
I'm thinking that's low for a Range Rover. Can't remember what it should be, take a quick look around, you'll find the figures.
 
Hi guys, sorry for the late update but my problems are not over, had diagnostics done twice now, getting convicted results, first time came back as possible causes,
torque converter
solenoid
oil filter and oil.
second time miss fire on multiple cylinders, would this cause the down shift and irregular gear change, on the other note they want £1700 for a recon box, any help our put in the right track would be appreciated, thanks Rob
 
Hi guys, sorry for the late update but my problems are not over, had diagnostics done twice now, getting convicted results, first time came back as possible causes,
torque converter
solenoid
oil filter and oil.
second time miss fire on multiple cylinders, would this cause the down shift and irregular gear change, on the other note they want £1700 for a recon box, any help our put in the right track would be appreciated, thanks Rob
sorry forgot to mention possible needs inlet manifold gasket.
 
Hi guys, sorry for the late update but my problems are not over, had diagnostics done twice now, getting convicted results, first time came back as possible causes,
torque converter
solenoid
oil filter and oil.
second time miss fire on multiple cylinders, would this cause the down shift and irregular gear change, on the other note they want £1700 for a recon box, any help our put in the right track would be appreciated, thanks Rob

I have a gearbox saga on here, if you're in the mood to search. Long story short, you could be having the same issue I did: two faults, similar symptoms, everyone blaming gearbox and totally missing injector issue.
Just because you have one fault, doesn't mean you don't have more ;)
 
I have a gearbox saga on here, if you're in the mood to search. Long story short, you could be having the same issue I did: two faults, similar symptoms, everyone blaming gearbox and totally missing injector issue.
Just because you have one fault, doesn't mean you don't have more ;)
yes thanks for reply this all started about 4wks ago, took advise and had diagnostics done, just driving at 50mph ish gearbox down shifts then instantly changes back then it would do it again in a few minutes, then I get transmission fault, I then have to stop and restart all will be good for days then it comes back had test done and came back with possible causes no mention of misfire, then had a diagnostic done today came back with misfire and erratic gear change, I'm at a loss and lossing the will
 
yes thanks for reply this all started about 4wks ago, took advise and had diagnostics done, just driving at 50mph ish gearbox down shifts then instantly changes back then it would do it again in a few minutes, then I get transmission fault, I then have to stop and restart all will be good for days then it comes back had test done and came back with possible causes no mention of misfire, then had a diagnostic done today came back with misfire and erratic gear change, I'm at a loss and lossing the will
If you have exhausted the possible, it is time to look at the impossible ;)
 
yes thanks for reply this all started about 4wks ago, took advise and had diagnostics done, just driving at 50mph ish gearbox down shifts then instantly changes back then it would do it again in a few minutes, then I get transmission fault, I then have to stop and restart all will be good for days then it comes back had test done and came back with possible causes no mention of misfire, then had a diagnostic done today came back with misfire and erratic gear change, I'm at a loss and lossing the will
I can't remember if you have a friendly, local, indy. If not, find one. Look on local LZers to see who is near you, and ask who they use
 

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