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Check Engine light question


mikkelstuff

Well-Known Member
U.S. Military - Veteran
Joined
Mar 26, 2018
Messages
603
Reaction score
467
Points
63
Location
Brighton, CO
Vehicle Year
2002
Make / Model
Ford
Engine Type
3.0 V6
Engine Size
3.0L
Transmission
Automatic
2WD / 4WD
4WD
My 2002 Ranger 3.0L has started giving me the check engine warning light. The OBD-II reader says the engine has a miss on the number 4 cylinder.

Usually this check engine light will go off after a time but then eventually returns with the same warning.

I have never felt a miss in this engine save for starting it up once on a very cold Colorado night and the miss went away when I cracked the throttle.

The truck has less than 15,000 miles on spark plugs, plug wires, coil pack, and cam synchronizer. The wires, coil pack, and synchronizer are all Motorcraft products.

I pulled the number 4 cylinder spark plug and it looks very good. I also made sure the plug wire was tight on the plug.

Where else can I look? Can this be an injector problem?
 


adsm08

Senior Master Grease Monkey
Supporting Member
Article Contributor
Ford Technician
TRS 20th Anniversary
Joined
Sep 20, 2009
Messages
34,623
Reaction score
3,613
Points
113
Location
Dillsburg PA
Vehicle Year
1987
Make / Model
Ford
Engine Type
4.0 V6
Engine Size
4.0
Transmission
Manual
2WD / 4WD
4WD
Tire Size
31X10.50X15
It could be an injector.
 

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