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Vaccum diagram Thanks Holigan but that is not it. I have a 2.5 Liter 4 cyl. with 8 spark plugs. I believe Mazda made the motor and a great one at that with 245,+++ miles. Runs great and I love the 5 Speed manual tranny. I hope someone has access to a link so I can see how it all ties together...

Hope someone can help me with a vaccuum problem. From inside the vehicle, when I call for heat nothing happens. I replaced the heater control valve today and still no heat. Could the control valve inside the vehicle be the culprit? All the other vaccum operated divises seem to fuction ok The...