How to remove the camshaft cap on a Mazda 3?
21. Loosen the camshaft cap bolts in two or three steps in the order shown in the figure and remove the camshaft cap. The camshaft caps are to be kept ordered for correct reassembly in their original positions. Do not mix the caps.
What are the symptoms of a bad camshaft sensor?
7 Symptoms of a Bad Camshaft Position Sensor (and Replacement Cost) 1 Check Engine Light Illuminates. 2 Ignition Problems. 3 Car Jerking or Surging. 4 Engine Stalling. 5 Poor Acceleration. 6 Problems Shifting. 7 Bad Fuel Mileage.
What do you remove from an engine to install a camshaft?
With the cover off the engine, remove the three upper timing-chain bolts, along with the lower timing gear if a new timing chain is to be installed.
Which is the correct timing gear for a camshaft?
Rotate the gear until the mark is at roughly 12 o’clock. Always defer to the manufacturer’s directions. With the camshaft in place, the upper timing gear should have its timing dot in the 6 o’clock position; the lower timing gear should show its zero-degree marking in the 12 o’clock position.
What does trouble code mean on exhaust cam actuator?
A trouble code related to either camshaft actuator solenoid doesn’t necessarily mean the solenoid has failed. If you don’t change your oil on a regular basis, gunk buildup will form and block oil flow into the actuator.
How are the intake and exhaust valves synchronized?
In times past, camshaft and valve timing were synchronized based on the exact position of the camshaft gear when the timing chain or belt of an engine was installed. Valve overlap — the brief period when both intake and exhaust valves are open in any given cylinder — was controlled only by the design of the camshaft.
How does an exhaust cam actuator solenoid work?
Once oil pressure builds, the powertrain control module adjusts camshaft timing via the actuator solenoid depending on things like engine speed, throttle position, manifold pressure, engine load, barometric pressure and the position of the crankshaft.
Can a bad camshaft sensor cause bad engine performance?
Bad Engine Performance – A faulty camshaft position sensor will cause an improper amount of fuel to be injected into the cylinder chamber. The engine will not respond very well to this because it depends on a proper mixture of air and fuel to function adequately.