Question about 2001 Mazda 626

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I have a 2001 MAZDA 626 2.5 liter v6 eng , automatic trans. When eng is cold the rpms rev up to @ 1500 and within 3 to 5 min will settle back to its normal rev. There is no eng light on nor any codes? Throttle Body Sensor or Idle Air Control Valve or ?

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Posted on Jan 02, 2017

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SOURCE: 2000 mazda miata r&r throttle body

se if egr is controled by vacium or electric
if it is by vacium then locate the egr solenoide and make sure it has vacium in one hose w/ engine runing if it does then replace solenoide

Posted on May 31, 2008

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SOURCE: no acceleration

I had the same problem with one exception. It would rev higher than 3500 but the higher it revved the more it bogged. I had the catalytic converter replaced. I thought I bought a new car. Acceleration is just like new. It was easy enough to test. My mechanic cut a hole in the exhaust pipe in front of the catalytic converter. It sounded like a truck but the acceleration difference was immediate. Easy diagnosis.

The car is hard to shift because the more you press on the accelerator the more the computer for the transmission won't let it shift. Which in turn causes the car to bog more sending more unburned fuel into the catalytic converter. Which in turn causes more carbon build up and more back pressure. Vicious cycle. It will only get worse.

My thermostat caused the entire problem. Thermostat was stuck open, engine never got to operating temp most days. Car burned rich. Bad gas mileage. A lot of unspent fuel being dumped into the converter. Probably have some underlying cause that needs to be addressed. Bad plugs, wires, coil, fuel filter.

Posted on Jan 21, 2009

  • 27 Answers

SOURCE: mazda 626 popping noise in front driver side when

Your Constant velocity joints have gone bad. the Boot that holds th grease has leaked out all the grease and the bearing inside are not being lubicated and thats where the poping comes from. Have someone look at the axle (CV) to determine if repairable or you might have to replace the axle. Hope this helps

Posted on Jul 01, 2009

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SOURCE: why does my 1996 mazda 626 have high rpms when

Make sure you have the trany in "D" (drive) and not in a lower gear like 1,2 or 3. Some models must be in "econo" (not "power") setting for the trany to shift at a lower rpm. It will also get in overdrive sooner.

Posted on Jul 03, 2009

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SOURCE: thrttole issues 2002 Jeep Grand Cherokee

the fast idle solinoid is bad.

Posted on Jul 25, 2009

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