(T) faulty jtd coil

Guys

I've had the preheat fault coming up. Now, the car seems to be misfiring with the exhaust phutting? I've had the engine cover off and if I put pressure on the 3rd coil along, the engine starts running properly. I was going to buy a new coil to replace this one. They look easy enough to fit but I've never done it before!

Any hints or tips?

Thanks

Darren

Are you saying you've got a loose heater plug

Could be?

I sprayed some electrical contact cleaning fluid on the ends of the contact but didn't make any difference. Is the plug easily replaced?

Thanks

Darren

I'd screw it back in if I was you (and quickly)

I don't suppose it's even faulty but I think I'd have words with the person that fitted it

You'll almost certainly need to take it in to a specialist Fiat garage as you need quite specialised tools to access the plug and tighten it.

Once it's back in then you may well find the 'Preheat Fault' message disappears.

??

I just reseated the black plastic plug which connects to the top of the coil?? The coil hasn't actually been replaced, yet?

Thanks

Darren

Coil? preheat? ....... do you mean the connector ontop of the 'glow-plug'?

Possibly!!!

4 of them in a row across the top of the engine?

The injectors run along the top of the engine.

The glow-plugs are at the rear (at an angle) and are very difficult to get to. Each one has a lead attached and looks a little like a spark plug.

That's them, they sit at an angle? Big thick cable with plastic connector connecting across the top of each plug and a smaller, thinner material covered cable too?

Thanks

Darren

Sounds like you have faulty glow plug then.

Thanks for the reply T. Are these easy fitted or is it a job for a mechanic?

Cheers

Darren

You can easily check which one (if any) is faulty if you can use a multimeter.

Remove the heater relay module (bolted to middle top of bulkhead), remove the 6 pin plug (with 4 thick wires attached) from underneath and then measure resistance to earth on each pin. Each one that's open circuit is defective.

Now take it to a good Fiat garage and ask them to replace each one which is faulty (you must of course tell them exactly which one/s you want replaced).

Ask them to test the duff one across a battery. If it glows like an electric fire then you’ve just asked them to remove a perfectly good one (but hopefully it will be dead )

Driving with a defective glow plug will do no harm to the engine but if you have a loose one (about to blow out) then I'd imagine this could be very dangerous

It might help to read this too

...might aswell get them all changed at same time though,about £9 each.

The car does a lot of spluttering and there is no power. I thought driving like this would harm the engine? Local dealer is closed till Tuesday but I think I've found them on ebay for £11.99 each.

Cheers

Darren

I expect it will but what's that got to do with a duff glow-plug.

They're only used to preheat the cylinders on a cold morning. Most of the time they don't do anything.

I thought you said you thought one might be loose

If it is then get if fixed pronto !!!