overdrive stopped working

[nigel62]

Hi,

2 weeks ago a friend of mine bought a tr5 from tr trader in Manchester,drove back to Oxford faultless, everything working.Took it out today for the 1st time since bringing it back and overdrive is now not working,is there any simple checks we can do before getting hold of the place he bought it from?.

Cheers

Nigel

[kcsun]

When i first got my TR6 the same thing happened to me, I found that I had kicked the wire to the column switch and it had disconnected itself from a "joint" above the centre console. pushed the wire back in and hey presto everything back working OK

 

KC

[RobinTR6]

There are some wires which go from column switch to gearbox overdrive, they enter the gearbox tunnel right next to floor dip switch, they are connected just before entering gearbox tunnel cover, make sure they haven't been kick ed apart...easily done. Its an A type overdrive so has a connection to a relay in the bulkhead near fusebox. If they have come undone note wire colours and report back. If not let us know and we can try some other diagnostics.

[peejay4A]

If the electrics check out OK then check the gearbox oil level.

[John Morrison]

Switch the O/D on and off and listen for the solenoid 'Click' from the gearbox,

it's quite audable with the engine off, (Ignition on) Make sure you are in an overdrive gear, if it clicks there is nothing wrong with the wiring.

John.

Edited August 4, 2014 by john

[Gordon Bayley]

I also am having problems with the over dive, I think they relay is faulty ,

Ill have to sort it out before next weekend,

Godon

[AlanT]

This has been done many times on here.

 

Google:

 

site:tr-register.co.uk overdrive

 

Take your pick.

 

Buckeye and VTR are most useful.

Edited August 4, 2014 by AlanT

[Gordon Bayley]

A mystery unfolds the relay next to the fuse box I thought was the overdrive relay operates the horn,

only one relay , So I phoned a friend and he conferred that there should be two, but it has worked for the last 9 years, cannot investigate till Thursday

will have to chase the wiring out through to see if the relay is somewhere else

Are there any auto electricians going to Harrogate,

 

Cheers Gordon

[RogerH]

Hi Gordon,

I may be wrong (as usual) but I thought the 'J' type OD on the TR6 did not have a relay.

If it does have a relay then you should be able to hear it click in.

 

If the wiring is OK then suspect internal problems. Mine had an internal circlip fail a couple of weeks ago - that was expensive.

 

Roger

[simonjrwinter]

I would have thought being a TR5 it was expensive?

Surely TR Trader should do the decent thing and fix it? (Presuming it's more serious than just a wire hanging off)

Simon

[peejay4A]

Gordon,

If yours is an A type overdrive and there is no relay there's a good chance that the column switch has died and you'll need to install a relay. If it's a J type then as Roger says, it doesn't require a relay as the solenoid works differently to the A type and draws less current.

Edited August 6, 2014 by peejay4A

[Gordon Bayley]

Thanks guys for the information; talking to john Sykes at TR Bits today, he said the same things that you all mentioned so I will try the suggestions out tomorrow afternoon

See you all at Harrogate overdrive or not

Cheers Gordon

[Gordon Bayley]

Update ,,,,,,Iv found the relay behind the H frame ?, after changing the relay and a look at all the wiring, it made all the right noises ,

will see better tomorrow