2003 ford focus sohc spark plug gap - Cars & Trucks

There is a little controversy about this. Searching the web, the best explanation I see is:

he 0.061-0.068 gap comes from the Ford OEM Service DVDs for 2003, 04 & 05, for the 4.0L Explorer, Explorer Sport-Trac, Mountaineer & Ranger, originally equipped with the Motorcraft AGSF22PM plug. Interestingly, in 2005, the Mustang started using the same 4.0L engine. In that application, the engine was equipped with the AGSF24N plug (a hotter plug). The gap on the DVD is shown as 0.052-0.056 in.

Through 2002, all 4.0L SOHC plugs, according to the Ford DVDs, are gapped at 0.052-0.056, using AGSF22PP plugs as replacement plugs.

The 4.0L SOHC is a waste spark engine, which uses slightly different plugs on the left & right banks.

Replacement plugs are usually double platinum, suffixed PP so they can be
used on both banks.

On the 2006 and later Ford DVDs, all 4.0L SOHC plugs are gapped at
0.052-0.056 in.

On the Ford OEM parts site, the AGSF22PM plug isn't listed. The replacement
plug for 2003-05 4.0L engines is the SP400, which is shown as having a gap
of 0.052-0.056 in.

The sites for Autolite, Champion and Bosch all list replacement plugs, for
those years as having a gap of 0.054 in.

Bottom line, it looks like the original plugs in the 2003-05 engines, except
for the 2005 Mustang, were gapped at 0.061-0.068 in. Replacement plugs,
regardless of manufacturer, are gapped at 0.052-0.056 (0.054), regardless of
electrode type (iron, copper, platinum, double platinum, or iridium.

Certain spark plugs you don't adjust the gap. Spark plug manufacturers may have different gap recommendations. If you want it in inches, try .051 or 1.3mm

check to see if you put spark plug wires on correct plugs . If fireing order is correct check for a cracked or miss gapped spark plug

the coil pack mounting bracket corroded

It really depends on the spark plug being used. But if you stick to the origninal spark plug NGK TR5A-10 it is supposed to be gapped a 1.0 mm since Ford has issued an in house service directive to reduce the gap from 1.3 mm (original) to 1.0 mm (present) 0.03936996

Kelly

2003 Ford Focus 2.0 liter SOHC L4 VIN "P"



2003 Ford Focus 2.0 liter DOHC L4 VIN "5"
or
2003 Ford Focus 2.0 liter DOHC L4 VIN "3"




Hope helps (remember to rate this answer).

CHANGING SPARK PLUGS EASY.ALL YOU NEED IS SPARK PLUG SOCKET.TORQUE WRENCH WOULD BE GOOD.NOT MANDATORY IF YOU MAKE SURE NOT TO OVER TIGHTEN SPARK PLUGS STRIP OUT THREAD SINCE THEY ARE ALUMINUM.YOU NEED A 3/8 RATCHET.SHORT AND LONG EXTENSION.YOU NEED SPARK PLUG GAUGE TO SET SPARK GAP.THE 2.0 OR 2.3 ENGINE SPARK PLUG GAP IS 0.041- 0.045.

lol, I never knew they made a sohc focus, 99% of these are zetecs DOHC. so they have the spark plugs down the middle of the cyliderhead.

you can set the gap by using the new spark plug casing papar thikness.try it and it will work

2.0L SOHC (single overhead cam) AGSF34EE plugs gap 0.054
2.0L DOHC (dual overhead cam) AZFS32FE plugs gap 0.050

The plug numbers are the motordraft numbers