Minnesota Focus Owners Club

(Steve you should have access to the actual documentation, if you could please post it?)

As far as I read so far it is affecting the Focus from 00 - 01 with vin P. Problems are described as lack of power, hesitation and near stalling. The solution is the updated Ford cylinder head. Apparently it is caused from worn exhaust valve guides which may cause the valve to stick at times, or cause an intermitent misfire code. I priced the head and it goes for about $500.


John

04-9-1

DRIVEABILITY- ROUGH IDLE, LOW POWER
AND/OR STALL AT IDLE WITH
VEHICLES EQUIPPED WITH 2.0L SPI WITH
(MIL) ILLUMINATED, DTC P0300-P0304
VEHICLES EQUIPPED WITH 2.0L SPI
ENGINE ONLY; FORD: 2000-2002 FOCUS

This article supersedes TSB 02-09-01 to update the SERVICE PROCEDURE
service and part information.
NOTE
ISSUE THIS PROCEDURE APPLIES ONLY TO THE 2.0L Some vehicles equipped with the 2.0L SPI engine SPI ENGINE.
may exhibit a malfunction indicator lamp (MIL) This condition usually results in misfire when the
illuminated and diagnostic trouble codes (DTCs) engine returns to idle after running approximately
P0300 through P0304 stored in memory. The 2000 RPM or higher. vehicle may also have a rough idle or reduced
power condition, and/or may stall at an idle. This may be caused by sticking exhaust valves due to excessive carbon build-up.

Cylinder Head YS4Z-6049-GA