Gear box

[Wayne]

Hi I recently bought a Mazda bongo and have discovered it won't go into top gear (3k revs) at 60. That would probably be why he he was reluctant about a good test drive I didn't get it up to that speed in a residential area, maybe I should of persisted in going on a dual carriageway. What's done is done anyway It drives really well though no lights on etc. What could this be.?
Also I've fitted a new split charger leisure battery 120ah wiring bits and bobs and discover it only powers 2lights and the fridge the mains runs the cig lighters etc can I upgrade this ? I'm new to owning a bongo or any camper any advice would be great.

[Billybongo123]

First thing that's easy is check oil level etc and its condition. Is it petrol or diesel?

[Alacrity]

Waste of time checking oil level for THIS fault, oil quality maybe (is it black & smells burnt?), as the transmission is electronically controlled so you need to be looking at fault codes etc. I assume to HOLD light comes on & off with the button & it isn't on all the time? If it is it will never shift to top. Poss TPS issue or speed sensor assuming all is well in the trans.

[teenmal]

This might give you an idea of the rpm to gear position/mph.


Gear Ratios
(mph/2000rpm) for each
gear.
1st – 11.2MPH
2nd – 20.4MPH
3rd – 32.0MPH
4th – 50.3MPH

+/- 8%

Take Care

[LJColeman]

It seems I also have this issue on my recently purchased bongo.

On occasions it will select 4th but then a few seconds later it will jump back to 3rd and then may not select 4th again for the rest of the journey.

Any ideas?

[Flanners]

as per Alacrity's post: TPS issue etc