2003 Ford Focus Spark plug change

Tiny
KCSTORZY
  • MEMBER
  • 2003 FORD FOCUS
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 85,000 MILES
I was just wondering why my car would be affected by just changing the spark plugs. It feels like it is a cylender short, it doesn't accelorate, and there is a smell like something is burning. The spark plugs are in good condition and are tightened securely.
Sunday, February 7th, 2010 AT 10:41 AM

3 Replies

Tiny
MATHIASO
  • MECHANIC
  • 1,209 POSTS
Hello kcstorzy

Check spark plugs gap.
.050 (In thousandths of an inch)
When installing spark plugs, use your finger tips, turning the spark plugs in clock wise. So they can be well seated before using socket wrench.
Fail to do so will damage the tread in the cylinder head and cause compression and misfire issue.
Make sure the boots are well seated on all plugs, and the wire is not broken inside one of the boot. Replace the spark plug wires if you doubt.
Replace one spark plug and wire at the time to avoid having problem with the firing order.
The burning smell is caused by a misfire.
Was this
answer
helpful?
Yes
No
+1
Sunday, February 7th, 2010 AT 11:47 AM
Tiny
KCSTORZY
  • MEMBER
  • 2 POSTS
Thanks it was a gap issue, everything runs fine now. Thanks for your help
Was this
answer
helpful?
Yes
No
Sunday, February 7th, 2010 AT 1:46 PM
Tiny
MATHIASO
  • MECHANIC
  • 1,209 POSTS
Thank you for your donation and for visiting 2CarPros. Com we hope to help you again the next time you need us
Was this
answer
helpful?
Yes
No
Thursday, February 11th, 2010 AT 10:31 PM

Please login or register to post a reply.

Related Spark Plug Replace/Remove Content

Spark Plug Replacement Ford
VIDEO
Spark Plug Replacement Ford
In­struc­tional re­pair video
Spark Plug Replacement
GUIDE
Spark Plug Replacement
A spark plug is a vi­tal part of the en­gine's ig­ni­tion sys­tem and is re­spon­si­ble for start­ing the com­bus­tion process. As a part of an en­gine tune up, spark plugs should ...
VIEW MORE