Notes: The 2002 Ford Focus 2.0L SOHC engine has a defect where the intake valve seat fails. The valve then falls into the cylinder, destroying the engine & most owner relationships with Ford in the process.


fairly significant
Typical Repair Cost:
Average Mileage:
77,318 miles
Total Complaints:
5 complaints

Most Common Solutions:

  1. not sure (3 reports)
  2. had dpse sensor replaced (1 reports)
  3. replace ignition module (1 reports)
2002 Ford Focus engine problems

engine problem

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2002 Ford Focus Owner Comments

problem #5

May 312015

Focus SE Split Port Sohc

  • Manual transmission
  • 163,000 miles


Car started missing, and the check engine light turned on. So I replaced spark plugs and spark plug wires and no solution. Then I checked for spark for all the spark plugs and the number 2 sparking plug did not have a spark. Then I replaced the ignition module and that fixed the problem. The check engine light then turned off by itself. However this is NOT the end of the story!

- , Pa, CA, USA

problem #4

Nov 072007

Focus SE 2.0L

  • Automatic transmission
  • 86,000 miles

Check engine light comes on. Check code with code reader, o2 sensor bank 1.

went to auto parts store and replaced the o2 sensor suggested. Cleared Computer with code reader. Drive two miles and the same code comes on again. exchange it thinking sensor was bad. steps repeated and still the same.

Took it to dealer and they replaced it and the rear sensor as well. Two miles later same thing traded the car in after that 86000 miles

- , Rockvale, TN, USA

problem #3

Sep 282007

(reported on)


  • Automatic transmission
  • 32,000 miles

Check engine light stayed on and had to take it to the dealer to fix

- , Norristown, PA, USA

problem #2

Oct 022006

(reported on)

Focus SE

  • 50,000 miles

Engine light would come on and off for a few days, eventually it came on and stayed on. I took my car to a service station and they did a diagnostic. Unfortunately because Ford will not let other places buy their computer programs to decipher my car's computer, I had to take the car to Ford. Had the DPSE (Exhaust) sensor replaced and it runs fine... for now.

- , Edmonton, Alberta, Canada

problem #1

Sep 162006

(reported on)

Focus LX

  • 55,589 miles

I changed an alternator and the pvc hose and had computer checked for problems and everything was fine on my 2002 focus, but for some reason the check engine light keeps coming on. I took it to get checked and they said there is nothing wrong. The ford company says i must check it. Why? I feel the problem is in the work. The maker. Not the owner!!!!!!. Make them fix this or give us a new car that works. A four year old car should not have so many problems. Ford give us a car that we don't have to fix all the time we are working people and we can not work if our cars don't.

- , Fresno, CA, USA

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