CAUTION:
Variable valve timing actuator cannot be disassembled because it is a precision unit.
1. Remove the battery cover..
2. Disconnect the negative battery cable..
3. Remove the charge air cooler..
4. Remove the ignition coils..
5. Disconnect the ventilation hose from the cylinder head cover..
6. Remove the cylinder head cover..
7. Inspect the variable valve timing actuator for damage around the stopper pin cap (A), or a missing stopper pin cap (B), spring and stopper.
If no parts are damaged or missing, go to the next step.
If any parts are damaged or missing, replace the variable valve timing actuator..
CAUTION:
If any parts are damaged or missing, remove the front cover to inspect the timing and oil pump chains and all related components for damage as a result of lost parts. Replace components if necessary.
If the lost parts cannot be located in the timing chain area, it will be necessary to remove the oil pan to retrieve them.
8. Turn the crankshaft clockwise so that the notches on the variable valve timing actuator can be checked.
9. Turn the camshaft counterclockwise to align the notches on the variable valve timing actuator.
10. With the notches aligned, turn the camshaft clockwise 30 degrees.
11. Verify the notches again.
A: If the notches are not aligned, replace the variable valve timing actuator..
B: If the notches are aligned, there is no problem with the variable valve timing actuator.
NOTE:
In some rare cases, the timing chain tensioner ratchet lock may get stuck, which will require the removal of the engine front cover.
12. Install in the reverse order of removal.
Stop Vehicle in Safe Place Immediately
If any of the following warning lights turns on, the system may have a
malfunction. Stop the
vehicle in a safe place immediately and contact an Authorized Mazda Dealer.
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Front Door Latch And Lock Actuator Removal/Installation
1. To access the glass installation bolt, position the front door glass so that
the distance from the top of the front door glass to the upper part of the front
beltline molding is approx. 80 mm {3.1 in}.
2. Disconnect the negative battery cable..
3. Remove the following parts:
a. Inne ...
Ignition Coil Inspection [Mzr 2.0, Mzr 2.5]
Ignition Coil Inspection
1. Perform the spark test and identify the malfunctioning cylinder..
2. Replace the ignition coil of the malfunctioning cylinder with that of a normal
cylinder, and perform the spark test again..
If the spark is not normal due to a malfunctioning ignition coil, ...