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AMEDEE
AMEDEE, FORD TECHNICIAN
Category: Ford
Satisfied Customers: 21843
Experience:  ASE MASTER TECHNICIAN ADVANCED LEVEL SPECIALIST. Wisconsin certified emissions state inspector
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My 1998 ford ranger keeps blowing spark plugs. Why?

Customer Question

My 1998 ford ranger keeps blowing spark plugs. Why?
Submitted: 5 years ago.
Category: Ford
Expert:  AMEDEE replied 5 years ago.
Hello!

What do you mean by blowing spark plugs?

Do they keep going bad?

Is this on all cylinders?
Customer: replied 5 years ago.

1998 Ford Ranger 2.3
Customer: replied 5 years ago.
What I mean is that the spark plug is blown completely out of it's socket. And it's different ones each time.
Expert:  AMEDEE replied 5 years ago.
Was there new plugs just put it?
Customer: replied 5 years ago.
yes
Expert:  AMEDEE replied 5 years ago.
DO you put them in?

What where they torqued to?
Customer: replied 5 years ago.
Yes, my husband installed them, and it might help if I add the fact that it's only the porcelain portion that is blown out, not the threads. Also, we recently (within the last 6 months) replaced the timing belt.
Expert:  AMEDEE replied 5 years ago.
So the bottom half of the spark plug is still in the cylinder threads?
Customer: replied 5 years ago.
Yes
Expert:  AMEDEE replied 5 years ago.
Well is sounds like the spark plugs are broke.

They either got broke when they were put in, or they were broke before they were put in. Maybe when they were being handled in shipping.
Customer: replied 5 years ago.
But this has been going on for a priod of about 9 months using spark plugs replaced @ different times from different auto part stores. We have tried to find the issue, but have resorted to simply replacing the plugs as they blow.
Expert:  AMEDEE replied 5 years ago.
What size motor do you have?
Customer: replied 5 years ago.

2.3 liter

4 cylinder

8 spark plugs

Expert:  AMEDEE replied 5 years ago.

These spark plugs are not hard to get to... correct?

 

I don't see why they keep breaking.

 

Cylinder compression is not an issue right?

 

Have we done a compression test?

Customer: replied 5 years ago.

 

These spark plugs are not hard to get to... correct? No.

I don't see why they keep breaking. Exactly!

Cylinder compression is not an issue right? I don't know.

Have we done a compression test? No.

 

Could the way it's connected to the coil or the order of the spark plug wires cause this?

Expert:  AMEDEE replied 5 years ago.

Well if the wires were routed incorrectly, this should not cause the spark plugs to break.

 

When you get the spark plugs out, how does the electrode look?

 

 

Customer: replied 5 years ago.
some are really greasy and some look really corroded.
Expert:  AMEDEE replied 5 years ago.

Are you talking about the part that goes into the cylinder?

 

It does not look damaged... does it?

Customer: replied 5 years ago.

Are you talking about the part that goes into the cylinder? Yes

It does not look damaged... does it? No

Expert:  AMEDEE replied 5 years ago.

Ok...

 

How long does it take for this to happen after they are replaced?

Customer: replied 5 years ago.
A couple of months, maybe. It doesn't happen right away.
Expert:  AMEDEE replied 5 years ago.

Wow!

 

Well the only thing I can think of is if they were cracked going in or they were broke before they were put in.

 

The only other option is they maybe the wrong plugs are being used? Maybe they are overheating?

 

I am going to leave this question open for other experts. Maybe someone else has come across this before.

 

Good luck.

Customer: replied 5 years ago.
Relist: No answer yet.

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