Question about 2003 Mazda Protege

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Rough shifting my 2003 protege engine light is on..idles rough..like it might stall..but..doesn't and it sometimes is very jerky shifting into 1st and sometimes 2nd.. any ideas what this problem could be.

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It sounds like the MAP (manifold absolute pressure) switch might be bad. Since the check engine light is on, have the computer codes read.

Posted on Jul 21, 2009

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Posted on Jan 02, 2017

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1 Answer

Why is my ford focus 2003 car always stalls?


My ford focus 2.0L Auto T. Starts and keep idling for 10 minutes, then stalls. Sometime when shifting to 1st, it stalls
(I hear a sound like "cliking or knopking" in the motor.

Feb 16, 2014 | Ford Cars & Trucks

1 Answer

Car engine idles really high then really low, why?


It can be issue with IAC( idle air control valve) causing the problem.


There are many other possibilities causing these idle issues. Engine idles rough.

There are few help links with solutions to troubleshoot such idle issues.

I suggest you refer the link below and follow its troubleshooting details:------

Click the link below:-----

Ford Expedition IAC valve replacing

http://technoanswers.blogspot.com/2012/12/ford-expedition-iac-valve-replacing.html

Bad miss at idle?

http://technoanswers.blogspot.com/2012/01/bad-miss-at-idle.html

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Stumbling and stalling at idle after engine rebuild?

http://schematicsdiagram.blogspot.in/2012/03/stumbling-and-stalling-at-idle-after.html

------------

1999 Ford F-150 Idles rough and quits when gas pedal is pressed less?

http://technoanswers.blogspot.in/2012/01/1999-ford-f-150-idles-rough-and-quits.html

---------

Engine stumbles coming off idle when warm?

http://repairhelpcenter.blogspot.com/2012/01/engine-stumbles-coming-off-idle-when.html

------------------

Erratic idle on car?

http://schematicsdiagram.blogspot.com/2011/12/erratic-idle-on-car.html

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Cold start problem and vehicle shudder around 2500 to 3500 rpms

http://repairhelpcenter.blogspot.com/2012/10/cold-start-problem-and-vehicle-shudder.html

----------

Low idle when cold out side?

http://repairhelpcenter.blogspot.com/2011/12/low-idle-when-cold-out-side.html

-----------

GMC Sonoma Stalls and idles low

http://technoanswers.blogspot.com/2012/10/gmc-sonoma-stalls-and-idles-low.html

--------


GMC Idle Air Control (IAC) Valve Replacing?

http://schematicsdiagram.blogspot.com/2011/12/gmc-idle-air-control-iac-valve.html

-------------

1996 Camry intermittent engine failure while idle?

http://repairhelpcenter.blogspot.com/2011/10/1996-camry-intermittent-engine-failure.html

------------

Engine quits at idle?

http://repairhelpcenter.blogspot.com/2011/10/engine-quits-at-idle.html

-----------

Car overheats and Air blows hot at idle?

http://howtobyme.blogspot.com/2011/11/car-overheats-and-air-blows-hot-at-idle.html

---------

High Idle Problem

http://repairhelpcenter.blogspot.com/2012/10/high-idle-problem.html

-------

While stop engine idles like cylinder missing?

http://schematicsdiagram.blogspot.com/2012/01/while-stop-engine-idles-like-cylinder.html

---------

Idle flair is noticed on car? Rough idle? car will not idle? Erratic idle speed?

http://technoanswers.blogspot.in/2012/02/idle-flair-is-noticed-on-car-rough-idle.html

--------

High rpm in neutral? Inconsistant high RPM in neutral?

http://technoanswers.blogspot.in/2012/02/high-rpm-in-neutral-inconsistant-high.html

-------

Vehicle stumbling at idle and shows code 54?

http://schematicsdiagram.blogspot.in/2012/03/vehicle-stumbling-at-idle-and-shows.html

----------

Rough idle, staling and Erratic shifting?

http://technoanswers.blogspot.in/2012/03/rough-idlestaling-and-erratic-shifting.html

-----------

While stop engine idles like cylinder missing?

http://schematicsdiagram.blogspot.com/2012/01/while-stop-engine-idles-like-cylinder.html

---------

These details will help.

Thanks.

Feb 15, 2013 | 2003 Pontiac Grand Am

1 Answer

Rough shifting 1st to 2nd


Hi Summit, Take the vehicle for a diagnostic scan. The gearchange is controlled by speed sensor signals which also serve the ABS system and traction control. It could be something simple like one sensor having dirt contamination or defective signal output. The scan should pin point the problem. Regards John

Oct 20, 2012 | 2003 Mazda Protege

1 Answer

I got a 2003 mazda protege 2.0 the check engin light came on. it drives great but when left to idle it sounds like its going to stall.


Could be the Mass Air Flow sensor. But I would check the cold air intake tube first, they are subject to cracking and any hole in it will cause the MAF to give false readings which will trigger the light and cause rough idle, stalling and hesitation.

Jan 31, 2011 | 2003 Mazda Protege

1 Answer

Mazda Protege 2002 check light engine is on and engine sometimes slows down or stalls while idling


For a proper diagnosis and repair you first need to scan your engine control module to find out why it turned on the Check Engine light.

Dec 09, 2010 | 2002 Mazda Protege

7 Answers

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).

Dec 30, 2008 | 2003 Mazda Protege

1 Answer

Engine bogs and stalls


Check the air filter hose. My '99 Protege was idling rough and would sometimes shut off. The air filter hose was cracked half way around. I replaced it (easy just loosen two hose clamps and pull out the sensor) and the car is running fine.

Dec 27, 2008 | 2000 Mazda Protege

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