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The mkiv Supra Owners Club

Auto tt issues


Mr2kyle

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Hi all,

 small issue I noticed tonight whilst driving the car. Was slowly driving around a car park, so the car must have been either first or second but it was then changing between first and second as if it couldn’t decide what gear was best. It then started to bog down and the dials on the dash dimmed. I’m thinking it’s an alternator issue but would this make the auto gearbox act the way it did? Car has been sitting up for the guts of two years so what are your thoughts. Auto fluid and filter were both changed within the last 3 months so I can rule that out. Didn’t notice any lights on the dash either. Let me know your thoughts.

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Possibly alternator, but usually when that goes the lights on the centre dash pop up...

More and more ECUs are failing, might be worth checking the capacitors? 

But first easy job would be checking the battery and alternator if that's your hunch :)

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Hmm ok I’ll have a look at the voltage output and then investigate the ecu although I found it odd how it tried to get into second and bogged down...dash went dull and then I picked up again. Rest of the journey was grand and I slowed down later to see if I could try and get it to happen again and it seemed perfect. I’ll have a look. Many people replace the capacitors in the ecu ect?

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