Question about 1994 Mazda Navajo

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Rough idle mazda navajo 4.0

When in drive ,stopped it idles rough for 15seconds then the rpm's will go up 1800 and down 200,back and fourth,like its going to stall out,you hit the gas and its ok till you let off the gas ,then samething

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

ilragatzzo78
  • 241 Answers

SOURCE: mY car is a 1995

check your air mass meter or map sensor

Posted on Jul 09, 2008

cbaroni78
  • 44 Answers

SOURCE: high idle 1997 Madza 626 4 cylinder auto transamission

The PCM controls idle speed to ensure good driveability. The PCM will only attempt to maintain the desired idle speed when it “knows” the throttle is closed. A throttle switch or the TPS input is used to determine when the throttle is in the idle position. Motors and solenoids are used by most PCM’s to control idle speed. Many PCM’s are programmed to attempt to control the idle speed by adjusting spark timing and then by controlling the idle speed actuator. Some computers of the early 80's did not control idle speed.

Posted on Oct 19, 2008

emissionwiz
  • 75744 Answers

SOURCE: wants to stall at idle.

Here is the most common cause of this stall, it is the idle speed control air-bypass valve and throttle valve, they get full of gunk over the miles and cause idle issues (stalls) like yours, Get a can of intake cleaner from any local parts store, not carb spray, intake cleaner, it is made by a company called CRC, remove the air intake hose to the engine, hold the idle high so the engine won't stall, then spray the can of cleaner into the intake while keeping the engine running, use at least 1/2 the can, shut down the engine and disconnect the battery for 5 minutes, then restart and complete a number of mixed driving cycles, town, freeway, stop and go etc., after a few days the problem will go away as the system will relearn to the clean intake.

Posted on Nov 10, 2008

dealt_soul
  • 296 Answers

SOURCE: 2004 Mazda Mpv high idle and will not idle down.

Check your throttle position sensor

Posted on Mar 19, 2009

  • 1 Answer

SOURCE: 2003 Mazda protege had rough idle and wants to stall when I stop.

The idle on my 2003 Mazda Protege started acting strange one day - it kinda surged forward a little bit. Then the RPM would drop and kept wanting to stall out. It stalled out at a stop sign. The check engine light came on. I drove it immediately to my Goodyear mechanic. It ended up being the Idle Air Control Valve. They had to order the part from Mazda which took 3 days to get there. The whole thing cost $700. Runs great now (again).

Posted on Apr 21, 2009

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2 Answers

How do I fix an erratic idle problem?


Solving Automotive Idle Problems - EricTheCarGuy- Stay Dirty!

www.ericthecarguy.com > Troubleshooting FAQ
Learn about the most common causes of engine idle problems and how to determine their source ... Honda Rough Idle ... If you have a check engine light on for any for the above sensors, repair that fault first, then recheck for your idle problem.

How To Fix Or Prevent Stalling, Surging Or Rough Idle ...

? 16:38
https://www.youtube.com/watch?v=Q7gAwGlJAww
Sep 22, 2013 - Uploaded by Old750
This is how I solved the rough idle and stalling problem on my Mazda ... Fix my car, repair my car, advice, help, how to, how tofix my car, help to ..

Nov 15, 2015 | Cars & Trucks

1 Answer

I am having serious problems with the idle modual it reves at the norm then all of a sudden the reves just increase up to roughly 2.300 and then come down to near stalling


First Check All Air hoses. Make sure no vacuum leak are present.
make sure your ignition coil are good. This will make engine idle roughly. For the rpm to high or to low maybe your air idler is no good. If you're car turn off it might be overheated. Check coolant level. Make your not mixing water with oil. Check the oil dipstick to verify. If like a milky color then it's mixing water with oil. This will car to stall and run roughly

May 08, 2014 | 1995 Mazda 626

1 Answer

1995 chevy silverado cl1500: high idle @ 1800 rpm: replaced all sensors, some twice.


check all vacuum lines very closely for a vacuum leak. might be a small hairline crack that is hard to see.

Dec 04, 2013 | Chevrolet Cars & Trucks

1 Answer

Still Rough Idle After Battery Disconnect


The first thing to do is not set up the idle speed, but to set the Idle mixture screw to lean best idle setting. First, turn in the mixture screw until the engine dies or runs worse, then back out the screw (recommend turning ¼ to ½ turn at a time). The engine should pick up speed and begin to smooth out.

The battery has nothing to do with the idle speed

Apr 09, 2017 | 2004 Mazda 6

2 Answers

1993 Mazda Mx3 Revving high/Fluctuating during idle.


there is either a vacuum leak,or a valve on the throttle body called an iac that is bad. it is the idle air controller.alot of mazda have that problem

Oct 23, 2009 | 1993 Mazda MX-3

1 Answer

Rough idle when stopped in drive


hi barry i have the same problem did you ever fix yours ?

Sep 30, 2009 | 1995 Mazda Protege

1 Answer

I have 2002 audit quattro TT with 180k miles. When I do a normal acceleration the car surges and rpm drop but pick back up. If I accel hard it runs fine. Also at idle at times it varies 200 rpm like a


this sounds similar to a problem i had. as the rpm went over 2000 the engine would stop for a split second and then kick back in.
after a few days looking my garage finally found the problem was a faulty air mass meter.
this cost me £200 in total to be repaired.

May 06, 2009 | 2002 Audi TT

1 Answer

High idle 1997 Madza 626 4 cylinder auto transamission


Idle control valve...

HIGH DOLLAR PART, 400 to 500 smackers....

You can try cleaning it, I beleive that is the same 2.0 liter motor they put in the ford Probe? I could be wrong, I know they 2.0 has issues with the idle control valve..

Anyway, if you want to try cleaning it, try this link... its to a Probe, but should be the same as yours...

http://www.geocities.com/adamk01452/IAC_Clean.html

If its not the same as that, you can probably search the net and find a site specific to your car... but it really should be the same motor, even the haynes manual for the Probe has sections for both the Probe and 626 in it...

Good Luck!!!

Apr 22, 2009 | 2001 Mazda 626

1 Answer

93 cavalier vibrating


your probably feeling a rough idle of the engine. need a tune up?

in park the engine is not loaded down, just idling at a low rpm=rough
in drive with brake on you have put some load on motor also at low rpm=rough
in drive on the road engine is at higher rpm, = smoother

generally 4 cylinder motors idle a bit rough, especially if one spark plug is not firing right or fouled or one bad spark plug wire. tune up may fix it. if it is not stumbling real bad or stalling then you can live with it.

Nov 22, 2008 | 1999 Chevrolet Cavalier

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