Apr 022018

2007 Mazda CX-7

Radio won’t work

Check fuses first. Then trace wiring. If everything checks out, replace the radio. Use the wiring diagram provided below to assist in your troubleshooting. If the radio comes on but just no sound, your radio thinks its being stolen. You will need the radio code. If it is not in your owners manual call the dealer.

2007 Mazda CX-7 Radio wiring diagram

Jun 062017

2003 Mazda 323

Engine crank’s good but won’t start

Car stops while driving. Has a very good cranking but won’t start.
No “Fuel Prime” when turn key to “ON”.
Fuel pump running well when thought Fuel Relay manually.
Fuel tank is 3/4 full.

New Camshaft Position, Crankshaft Position and Throttle Position Sensors have been installed.
Engine oil and oil filter has been changed.

Mar 222017

Mazda TributeI am trying to change Ignition Coil #2 under Upper Intake Manifold. I have disconnected all hoses, all items and removed bolts. The manifold refuses to “break loose” in order to lift it up. It appears there’s oil, gook, and it is like “sealed” at the gap where it should break apart from the lower intake manifold. Help! What can i use to help loosen it? Thank you!



Intake Manifold Refuses to Break Loose

Make certain all bolts are removed. Next double check to make sure all bolts are removed. When you are done with that, move on to checking to make sure all the bolts are removed. Since you are sure all the bolts are removed you may slide a thin metal scraper in and wiggle a little to try an loosen it up. You can try being gentle with a big screwdriver but it shouldn’t take much pressure. The gaskets are just rubber o-rings that may need to be replaced.

Upper Intake Manifold Replacement

Upper Intake Manifold

To Remove:
  1. Loosen the air cleaner outlet tube clamps and remove the air cleaner outlet tube.
  2. Remove the three nuts retaining the engine appearance cover and remove the cover.
  3. Disconnect the throttle cable (#1), the speed control cable (#2, if equipped) and the throttle cable bracket bolts (#3).
  4. Disconnect the Throttle Position (TP) sensor and the Idle Air Control (IAC) electrical connectors
  5. Disconnect the Exhaust Gas Recirculation (EGR) valve vacuum hose and EGR tube nut.
  6. Disconnect the EGR vacuum regulator solenoid electrical connector and vacuum hose.
  7. Locate the three vacuum hoses on the back of the intake manifold. Identify and tag for reassembly. As shown, #1 is the chassis vacuum hose, #2 is the engine vacuum hose and #3 is the Positive Crankcase Ventilation (PCV) hose.
  8. Disconnect the larger Vapor Management Valve (VMV) hose.
  9. Locate and detach the two electrical connectors attached to the left side of the upper intake manifold.
  10. Disconnect the Power Steering Pressure (PSP) sensor electrical connector.
  11. Remove the bolt holding the transmission vent hose and bracket and move aside. Also remove the nut from the wire harness.
  12. Remove the eight bolts and remove the upper intake manifold. Discard the gaskets.
To Install:
  1. Installation is a reverse of the removal procedure. Clean all parts well. Installation is essentially a reverse of the removal process. Use care when handling light alloy parts.
  2. Install new gaskets in the upper intake manifold and carefully set into position. Tighten the bolts in sequence.

Carefully torque the upper intake manifold in this sequence. Do not over-tighten or the light alloy pieces could be damaged.
upper intake manifold

3.Make sure all vacuum lines are returned to their proper locations (follow the marks made at disassembly). Also check that all electrical connections are secure.


Mar 042017

2007 Mazda 5I know home A/C system cold air when i turn it off, i can not turn back on right away, needs to wait 5 minutes before the compressor kicks in again, this feature is to protect the compressor. But what about car? my job requires me to drive less than a minutes and stop(engine off), and back driving after 2-3 minutes, and drive another minutes and stop, on and off for 50 times, would this kill the compressor faster in summer since car doesn’t have a thermostat to oversight compressor like home.


Air Conditioning Compressor Thermostat

This would not kill the compressor faster in the summer. The air conditioning compressor doesn’t need a thermostat to oversight. The Fan Speed is automatically increased to insure the compressor doesn’t get hot anytime it is turned on.

Jan 022017

2011 Mazda Speed 3HID headlamp does not work. went back on for a brief day or two.


In most cases replacing the bulb will correct this issue. In other cases correcting a connection error may need to be made.

HID Headlamp Replacement

Discharge Type


•Incorrect servicing of the discharge headlights could result in electrical shock. Before servicing the discharge headlights, always refer to the discharge headlight service warnings.

  1. Disconnect the negative battery cable.
  2. Remove the front bumper.
  3. Remove the front combination light.
  4. Rotate the cover in the direction of the arrow shown in the figure to remove it.

2011 Mazda Speed 3 HID headlamp replacement

  1. Rotate the connector in the direction of the arrow shown in the figure to remove it.

Headlight repalcement 2011 Mazda Speed 3

  1. Press sections A to release the bulb retaining wire and remove the discharge headlight.

HID Headlamp Diagram

  1. Remove the discharge headlight.

HID Headlight Removal 2011 Mazda Speed 3


  • The bulb generates extremely high heat when it is illuminated. If the surface of the bulb is soiled, excessive heat will build up and the life of the bulb will be shortened. When replacing the bulb, hold the metal flange, not the glass.
Nov 192016

dvd navigationMy 2006 Mazda 3 S Grand Touring has DVD navigation system. Was wondering if I could use navigation screen for video playback with a separate head unit.


I would think if you could figure out the wiring that it would work. Might turn out to be ore work than its worth but if it is what you want to do, go for it. There are many aftermarket options available along with factory OEM options. Check out Amazon for some awesome deals.

Oct 192016

2007 Mazda 6My indicator fuse has blown a few times over the last few days. I had to change the fuse again today but it has made both the indicators go at the same time. Is there anything else I can check to fix the problem?


  • Short in wiring harness
  • Shorted or sticking Hazard switch
  • Shorted Flasher Control Module

Anytime a fuse blows it is caused by an excessive amperage draw or direct short.


Sep 282016

2006 Mazda RX8In 4th gear the clutch grinds only at high rpm and all the other gears shift great the gearbox is also making a little bit of noise. I had the transmission looked at and its fine. Do I need to add trans fluid or clutch fluid?


Only add fluid if it is low. It would be helpful to know the year of your Mazda RX8. If the fluid is red, use ATF if it is clear, use gear oil. Manual gear box holds 3.6 quatrs.

Aug 012016

2007 Mazda 6 diagnostic plugWhen trying to get the car inspected was told the diagnostic plug in was not working. They were using a machine that powered off of my battery. I was told to go somewhere that the diagnostic machine had it’s own battery. Is this possible? This was in Austin, Texas


Most likely your ROOM Fuse (15amp) is blown. This would make the diagnostic plug unable to read it.  They may also have a bad machine and had nothing to do with your vehicle or your vehicles Data Link Connector. Some auto repair shops just don’t spend the money on good equipment and have to refer you to another shop that has better equipment.

2007 Mazda 6 Computer Data Link (Diagnostic Plug)Wiring Diagram