TA22 Ignition half dodgy

[Oddyssey]

Hey everybody,

I've had a problem with my TA22 ignition switch since I started driving it, but the problem isn't huge, and happens rarely.

What happens is that when the car is hot (after being driven on a 35+ degree day usually, but it can happen at lower temps), and the engine has been stopped, when you go to start the car again, nothing happens. You get a click and not much else...starter motor does not engage. You can, however, push start the car, so ignition is there but the starter motor just won't do it's thing.

If the car has the opportunity to be left for a fair while to cool off to a temperature where it's happy, it'll be fine but that takes far too long to be practicable. The car doesn't run hot or anything though, it stays around 80 degrees in said hot weather, only going above if its excruciatingly hot and you're pushing it hard - cooling system is fine.

So if anybody has any clues about this one, they'd be much appreciated.

[Ashe]

Sounds like Heatsoak on the starter.
Is it the same side as the exhaust? If so try insulating it.

Or if its a carburated engine you may be getting vaporlock from the heat vaporizing the fuel but I dont know much about that.

[Cool1]

I think that you will find the temperature thing to be just a coincidence(sp?)!

Its common in the older cars(especially the TA22) for the contacts in the ignition to become high resistance. Sometimes if your lucky you can just keep fiddling with the switch and it will finally start.
Best thing to do is to wire in a relay to the ignition. Have the ignition switch trigger the relay and have the relay trigger the starter.

[Aphox]

That's happened to me a few times in my TA22. Ii usually keep the ignition ini start for 5-20 seconds and it will just start turning over around the 8-9 second mark. Only has ever happened on really hot days.

[Oddyssey]

It's a carbied engine, and yeah, it does usually start if you keep fiddling with the ignition switch...I'll try what Aphox said next time it happens too .

Thanks for the help guys!

[sillycar chick]

Hi,
I had the EXACT same problem in my KE55 corolla a few years back... will work the same as the TA22.
It turned out to be the starter relay. It was stuffed, and would only work when cold, and when it got hot it would just "click" (the common relay noise).
For the sake of less than $5, just replace it.
To get you out of trouble when its hot, try clicking the ignition on and off really fast, sometimes that will get you started, sometimes it wont.
Good luck!

[Oddyssey]

Aha!

Thanks . I'll check that out.

[o_man_ra23]

Yeah, sounds like dodgy contacts alright. Cool1 hit the nail on the head with wiring in a relay. I think the TA22s went straight from the ignition barrel to the starter motor, so youll need to find somewhere neat and out of the way to put the relay also (dont want it to look bodgy).

Cheers, Owen

[Cool1]

Yeah, sounds like dodgy contacts alright. Cool1 hit the nail on the head with wiring in a relay. I think the TA22s went straight from the ignition barrel to the starter motor, so youll need to find somewhere neat and out of the way to put the relay also (dont want it to look bodgy).

Cheers, Owen

Yep, the TA22 doesn't have a starter relay.

[Oddyssey]

Ah righto. I'll look into it!

[Turdinator]

Good info guys. My car does exactly the same thing. I just do what silly suggested. Turn the ignition on and off quickly. Embarrassing if you've just stalled the car though. Pos reps will be handed out.

[skiddz]

have a look at the back of the key barrel, and if need be re solder the wires on

[o_man_ra23]

It is more likely the contacts which are sealed inside the ignition barrel are worn out. I saw a new one for sale a while back, wonder if they still have them at Toyota, as im pretty sure everything except the plug fitted later models such as the RT142 rona.

Cheers, Owen