Q: At what RPM should my car be at while idling. My car is a 2000 Mazda 626 automatic.

asked by on October 30, 2016

What level of rev meter should my car be when on idle?
My car has an automatic transmission.

Hey there. The specifications for the idle speed in gear for a 2.0 liter engine is 500 to 800 rpm. If you have a 2.5 liter engine the specifications are 550 to 750 rpm. Both of these rpm specifications are with the engine in park. The tachometer on your car is not very accurate unless it has a digital readout display of the actual rpms. If the idle is high then check for vacuum leaks in the inlet tube. If idle is too low, then check the throttle body and idle control valve for carbon build up and clean as needed. A certified technician from YourMechanic can come to your car’s location to inspect the idle and make corrections if you are noticing it to be abnormal.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

What others are asking

New plugs and new battery but it won't turn over

Hi Diamond. Thanks for contacting us today - and our first for 2018! If you turn the key of your Mazda and the starter will not engage, but you have power to accessories like lights, radio and such, then the...

Cost to fix: Spark plug #4 on passenger side blew out of its cylinder. Common on 5.4 Tritons. only need this spark plug 2000 Ford F150

Hi there. Unfortunately, this is a service that requires advanced machining tools; which our mobile mechanics don't typically have access to on site. As such, it's not a service we provide at YourMechanic.com. You might be better served contacting a...

Rough idling

Hello. This could be caused by a variety of things. It could be that your spark plugs or coil packs are misfiring. This means that the coil pack is not sending the proper electricity to the spark plug. It could...

Head gasket failure

There are several indicators possible. If the oil under the oil filler cap, or the oil on the dipstick, has a milkshake-like appearance, this would indicate coolant leaking into the oil. A milky substance under the radiator cap would indicate...

I had a p0405 get code replaced egr valve, map sensor,mad sensor, and PCv valve just to be safe but still getting the code why?

The code P0405 and a rough idle is most likely due to carbon getting into the EGR pintle. This will hold the EGR open. When you are getting the rough idle you should shut off engine and remove EGR valve....

Oil leaking from car.

We need to determine in what area of the car the oil leak is coming from. If it's in front of the motor it could be a front main seal or camshaft seal. If it's near the rear of the...

My engine revs up and down while I'm parked and driving and my car turns off

It is possible that your idle air control valve could be malfunctioning. The idle air control valve is responsible for making sure that the RPMs stay at a certain point during idle. I would recommend having your idle air control...

Smoking car

Hi there. From the description you have provided, the most likely cause is, the fuel pressure regulator is leaking. Removing the vacuum hose to the fuel pressure regulator and turn the key to the on position (engine off), this should...

What does it cost to replace the front end?

The cost of this repair would depend on the exact parts that require replacement. There are multiple parts on the front of the vehicle including suspension parts and brake Parts. Depending on which parts have failed you may need to...

Related articles

The Top 5 Selling Cars in Arkansas in 2012
Arkansas, Arkansas, like many other states, has to deal with a wide range of weather, from the stifling to the icy. This means drivers need vehicles that can handle the heat while also helping them get through slippery conditions. In...
2012 Mazda 3 vs. 2012 Honda Civic: Which One Should I Buy?
Compact cars are well-known for their cost-effectiveness, value and affordability as well as their small stature. In general, they make great commuter cars and are especially good for first-time cars for kids or college students heading out for the first...
The Best Used Cars to Buy for Occasional Drivers
Not Not everyone relies on their car on a daily basis. Maybe you aren’t the type that deals with a daily commute, and running from here to there constantly. If that’s the case, you may be looking for a car...