Bad Piston: Aside from a faulty piston ring allowing engine oil to flow to the cylinder and saturating the spark plug, a bad piston can also cause the oil in the spark plug well. Due to excessive heat, the piston may soon start cracking. Such a faulty piston can result in engine misfire, excessive oil combustion, and rattling sounds while the Step One. Turn Finger Tight. A new or reinstalled plug with a new gasket will require ⅜-⅝ turn to effect a gas tight seal depending on head material. Note: If using a torque wrench, please refer to the Torque Recommendations chart below. The 1,0 mm gap was only prescribed by Ford for a short period. The prescribed spark plug gap for the Sigma engine family was changed back to 1,3 mm after the coil pack problems were solved and a revised coil pack was introduced. Afterwards the prescribed spark plug gap for the Sigma engine family was changed to 1,2 mm. This was over 8 Years ago. Once the engine has cooled completely, adjust them so they're properly in place and the torque levels are right. Or simply remove and replace them with new plugs. A spark plug blow out occurs when the spark plug is fastened too tightly or not tight enough to the engine plug. The result is that the spark plug. Step 1: Open the Hood And Remove the Sparkplug Wire. Open the hood while the engine is cooled down. An active engine can take up to 30 minutes to cool down. There will be water around the well of the spark plug. Regardless, remove the spark plug wire. With your hand, grab the wire by the boot. Check the Ford Focus Ignition Capacitor. The ignition system in the Ford Focus is pretty simple. Power flows from fuse 14 to power the control coil in the PCM power relay. As you turn the key to start the engine, the PCM grounds the control coil. That switches the relay to provide power to fuse 29 which is the power source for all the C.O.P eKBx. Spark plugs 13 Nm (1.0 litre engines) 15 Nm (1.6 litre engines) ABS wheel speed sensor bolts 5 Nm. Ford Focus Mk3 maintenance schedule. The Ford Focus Mk3 maintenance intervals shown below are provided with the assumption that you, not the dealer, will be carrying out the work. These are the minimum intervals recommended by us for vehicles Old plugs were not old..a few months. Tried in two cars now and both showed improvements. So try Denso iridium TT Spark Plugs IK16TT. These fit the duratec 1.6 and I left factory gapped. Cost a few bob (try the green spark plug company) but given the slight mpg increase I guess over the year they pay for themselves. Put a new battery in put the key in the ignition and nothing. Nothing happened. The lights came on and you could hear the fuel pump. I started checking fuses and relays. The altenator is fine the starter is good. Removed the relay and used a jumper wire. Then i found out thatvthere is no spark and no fuel. P0300 definition: Random, Multiple Misfire Detected. Issue Severity: SEVERE – Stop driving immediately. Repair Urgency: Fix this code immediately (same-day if possible) to avoid ignition failure, catalytic converter damage, and dangerous conditions. Diagnosis: A multiple misfire can be caused by anything from faulty spark plugs to low engine Symptoms Of A Bad Ford Coil Pack. When the ignition coil pack or the spark plug wires are bad, your Ford (or Mercury, or Mazda) vehicle will display one or more of the following symptoms: The car idles rough and wants to stall (die). When you accelerate the car, it has no power. Really bad gas mileage. The vehicle will not start.

ford focus spark plug problems