Mazda Tech Tip: Air Conditioning Musty / Mildew Odor
A musty odor may come from the vents when the A/C system is operating. It is most noticeable when the A/C is first turned on.
Mazda Tech Tip: Whining Noise From Automatic Transaxle
Some customers may complain of a whining noise from the automatic transaxle when driving at 10 mph and above. The noise depends on the vehicle’s speed (the more speed, the more noise). The noise also occurs with all types of driving (acceleration, deceleration and steady speed).
Mazda Tech Tip: Sulfur Or Rotten Egg Smell/Odor From The Exhaust
On some Mazda vehicles, a sulfur smell or rotten egg odor may be noticed coming from the exhaust system. The odor is usually noticed after a cold start, fast idle, extended periods of idling and full-throttle acceleration. The sulfur smell is not an indication of an engine concern and will not cause reduced driveability or
Mazda Tech Tip: Key Code Retrieval Process
In the event that all vehicle keys are lost and the vehicle key code is not available on the Vehicle Retail Data Inquiry system, replacement keys may be acquired only by obtaining the key code using this repair procedure.
Mazda Tech Tip: P1443, Engine Idles Rough, Replaced Idle Air Control Valve
The car might be more than 20 years old, but that doesn’t mean you don’t want it to run smoothly. In this case, the component related to the code was not the culprit. Follow along with this Real Fix to learn about the cause.
Mazda Tech Tip: VVT Noise When Starting Engine
Applicable Models: 2003-’08 Mazda6 (2.3L) 2004-’08 Mazda3 with VINs lower than JM1BK******864673 2006-’08 Mazda5 with VINs lower than JM1CR******306808 2006-’08 MX-5 with VINs lower than JM1NC******146287 When the engine is first started, some vehicles may exhibit a loud ticking noise from the variable valve timing (VVT) actuator. This is caused by the lock pin of
Mazda Tech Tip: Diagnosing Body Vibration At Cruising Speeds
Some vehicles may experience a body vibration when driving approximately 55 mph. This symptom is due to the characteristics of the No. 3 and No. 4 engine mounts. Modified No. 3 and No. 4 engine mounts have been established for service only. Customers having this concern should have their vehicle repaired using the following repair procedure.
Mazda Tech Tip: Clunk/Bang On Initial Forward Take-Off
Some customers may report a slight clunk, bang or jolt from the front of the vehicle. This concern will most likely occur during the vehicle’s first forward movement, and after the vehicle sits for a few hours and/or a cold soak. This is a normal operating noise of the Anti-Lock Brake System (ABS).
Mazda Tech Tip: Curing Rough Idle During or Immediately After a Cold Start
Automotive fuel with high alcohol content may damage the fuel pressure regulator diaphragm. The damage to the diaphragm may allow fuel to enter the vacuum supply line for the fuel pressure regulator. The vacuum supply line uses the No. 3 intake runner as the vacuum source. The unmetered fuel entering the No. 3 cylinder on cold starts may cause a rich mixture misfire.
Mazda Tech Tip: Hesitation/Surge or MIL on with DTSC P0102/P0103
The malfunction indicator lamp (MIL) may illuminate with diagnostic trouble codes (DTCs) P0102 and/or P0103 on any 1998-’99 Mazda B-Series 2.5L. There may be driveability concerns, such as hesitation and/or surge, during acceleration under normal driving conditions. This may be caused by an out-of-specification mass air flow (MAF) sensor.