Mazda 2006 tribute 4 cylinder spark plug loosens and then tightens up on removal

Check for spark? Gas in cylinder? Crankshaft sensor good? Computer?

Here's the information you are looking for:

Firing order 1-4-2-5-3-6
Location:
1 - 2 - 3

4 - 5 - 6
Front of Engine

It may just be a coil breaking down or a bad spark plug. Try swapping one of the coils over with the faulty one and see if the misfire happens on that cylinder and cylinder 2 runs fine. If it does then swap the faulty one for a new coil. Don't know about your car but most now have individual coils for each cylinder that fit directly onto each spark plug.

On a Mazda Tribute you must remove the plastic engine cover. Once that is removed you should see the spark plugs. They will be on the top of the engine with caps on them. you must undo the cap and remove it on each spark plug to have access to the spark plug.

2.3L 4 cylinder? After removing the plastic engine cover, look at the top of the ignition coil.


It should be numbered 1 through 4.

This is plug number 1 on the engine:


Just wire them 1, 2, 3 and 4 to the corresponding numbers on the ignition coil.

best wishes

Inspection & Gapping

Fig. Inspect the spark plug to determine engine running conditions

Removal & Installation

2.3L Engine

1. Disconnect the negative battery cable.
2. Remove the 2 nuts, the bolt and the alternator air inlet duct.
   
   

   Fig. Remove the 2 nuts, the bolt and the alternator air inlet duct-2.3L engine
   

3. Disconnect the 4 ignition coil-on-plug electrical connectors.
   NOTE When removing the ignition coil-on-plugs, a slight twisting motion will break the seal and ease removal. Remove the 4 bolts and the ignition coil-on-plugs.
   
   WARNING Only use hand tools when removing or installing the spark plugs, or damage can occur to the cylinder head or spark plug.
   
   NOTE Use compressed air to remove any foreign material in the spark plug well before removing the spark plugs.
   
4. Remove the 4 spark plugs.

To install:

1. Inspect the spark plugs, as outlined in this section.
2. Adjust the spark plug gap, as necessary, to 1.25-1.35mm (0.049-0.053 in.).
   WARNING Only use hand tools when removing or installing the spark plugs, or damage can occur to the cylinder head or spark plug.
   
3. Install the spark plugs and tighten to 12 Nm (9 lb-ft).
   NOTE Apply a small amount of dielectric grease to the inside of the ignition coil-on-plug boots before attaching to the spark plugs.
   
4. Install the 4 ignition coils and bolts and tighten to 10 Nm (89 lb-in).
5. Connect the 4 ignition coil electrical connectors.
6. Install the alternator air inlet duct and the 2 nuts and the bolt. Tighten to 6 Nm (53 lb-in).
7. Connect the negative battery cable.

This is a fairly easy job. Do each cylinder one by one (removal and install), make sure to reinstall the coil on the same exact cylinder (DO NOT MIX UP). 1. Remove coil retaining scre 2. Pull upward on the coil to remove. 3. Remove spark plug (using a spark plug socket). 4. Properly gap new spark plug (if applicable). 5. Apply sprark plug anti-seize compound on plug threads. 6. Install plug. 7. Aplly coil boot grease on the coils' rubber boot tips. 8. Reinstall coil.

The procedure to replace spark plugs in Mazda -3 2006 model is as follows:--
1)  Start by disconnecting the negative terminal from the battery.
2)  Now remove the black plastic cover from the top of the engine. It snaps into place, so just pull straight up.
3) The four cylindrical gizmo's are the coils which mount directly above the four spark plugs.   
4)  Remove the four bolts (studs) that are securing the coils, and pull the connections straight up off the spark-plugs. Remove the plugs with a deep socket, or spark-plug socket.
5)  You may have to grasp the plugs with a needle nose pliers to get them out after loosening them.
6) Install the new spark plugs in reverse method and refit all the wires and bolts which you removed.
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1 - High Tension cable

• 4 to 8 Kohms
• With suppression connector and spark plug connector
• Only remove and install spark plug connector using tool T10029

2 - Ignition coil with output stage (-N70-, -N127-, -N291-, -N292-)
Connection, ignition wires:

• HV1 = Cylinder 1
• HV2 = Cylinder 2
• HV3 = Cylinder 3
• HV4 = Cylinder 4

3 - 10 Nm 4 - Connector

• 6 pin

5 - Knock sensor 1 -G61-*

• Contacts gold plated
• Fitting location: Cylinder block intake side

6 - 2-pin connector

• For knock sensor 1 -G61-
• Contacts gold plated
• Do not interchange

7 - Knock sensor 2 -G66-*

• Contacts gold plated
• Fitting location: Cylinder block intake side

8 - 2-pin connector

• For knock sensor 2 -G66-
• Contacts gold plated
• Do not interchange

9 - 20 Nm

• Tightening torque influences the function of the knock sensor

10 - Spark plug, 30 Nm

• Type and electrode gap See test data, spark plugs.
• Remove and install with 3122B

11 - Connector

• Contacts gold plated
• 3 pin

12 - 10 Nm 13 - 100 Nm

• Use counter- hold tool 3415 to loosen and tighten

14 - Camshaft sprocket

• With rotor for Camshaft Position (CMP) sensor

15 - Camshaft Position (CMP) sensor -G40-* 16 - Bracket

• For Camshaft Position (CMP) sensor

you have to dismantlement the top part of the engine to get the back 3 spark plugs. Remove the air intake. I own a Mazda Tribute and I just replaced mine.