I have Fiat 124 abarth spider 2017, the car has broken down three times since I got it new. it would not start or if started ran very rough every...

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Customer

I have Fiat 124 abarth spider 2017, the car has broken down three times since I got it new. it would not start or if started ran very rough every time. it was towed to the dealer for fixing, I am told that the spark plugs are full of carbon and are either cleaned or replaced. It does not make sense that I am told to drive it harder for the plugs to cleaned. I am been told from other sources that it could be a propulsion system problem or it could be Multiair brick needs to be replaced. As it going out of warranty earlier in the new year, I would like to know if what the dealer tells me is correct or what I have others have told me. Ta Ralph

Last updated
Elixir Cada
Fiat Mechanic

Hello and welcome to ExpertHelp.com! My name is Elixir Cada and I'm going to do everything in my power to answer your question to your full satisfaction!

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Posted
Elixir Cada
Fiat Mechanic

Hi Ralph,

Yeah , the first thing that you need to check are the sparkplugs and if you haven't changed them before then this is the right time to replace it. See the procedure below on how to change/replace the spark plugs.

The spark plugs are under the engine cover, it pops right off if you lift it. Then just unplug, unscrew, and pull the 4 coil packs out. The plugs are inside the hole left by the pulled coil packs, you'll need a 5/8 spark plug socket and extender to unscrew and extract the plugs. See below images. 

Test the issue again after replacing the sparkplugs.

Let me know if this helps. 

 

Posted
Elixir Cada
Fiat Mechanic

Hi Ralph,

Yeah , the first thing that you need to check are the sparkplugs and if you haven't changed them before then this is the right time to replace it. See the procedure below on how to change/replace the spark plugs.

The spark plugs are under the engine cover, it pops right off if you lift it. Then just unplug, unscrew, and pull the 4 coil packs out. The plugs are inside the hole left by the pulled coil packs, you'll need a 5/8 spark plug socket and extender to unscrew and extract the plugs. See below images. 

 

 

Test the issue again after replacing the sparkplugs.

Let me know if this helps. 

 

Posted
Customer

Hi,

Your reply is not telling me anything.

I do not need to replace the spark plugs as they were changed and the coil checked by the car dealer service centre.

What i am trying to find out is what could be causing the spark plugs to foul up? 

What is causing the plugs to have excessive " carbon built up ", causing misfire?

Is it a problem with the fuel propulsion system or Multiair brick or a computer adjustment or other possibilities ?

The question i need answered is what could be Causing the carbon built up, so that i can tell the Fiat service centre to change  / repair. 

Ta

Posted
Elixir Cada
Fiat Mechanic

Hi Ralph,

Many factors can contribute to spark plug fouling. The air/fuel ratio may be too rich as a result of incorrect adjustment or a poorly performing fuel injection system. Worn piston rings or valve seals may allow too much oil to leak into the combustion chamber, leading to oil fouling. The ignition system may not be performing properly. Prolonged idling or continuous low-speed driving may keep the spark plug from reaching its optimum operating temperature. Using too cold a spark plug can lead to the same problem. Finally, a dirty air cleaner can create a too-rich condition which can lead to fouling.

Let me know if you have further questions.

 

Posted
Elixir Cada
Fiat Mechanic

Hi Ralph,

Any update on this issue? 

Posted

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