Question about 1995 Ford Aspire

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Engine stalls at idle with A/C on. How do I adjust idle?

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  • Ford Master
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Replace the idle air control

Posted on Jul 20, 2010

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Posted on Jan 02, 2017

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Molson02536
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SOURCE: IDLE SLOW ON 2000 SILVERADO

The idle is electronically adjusted by the ECM with the IAC (idle air control) valve which is located in the throttle body. Then the IAC get's to dirty from carbon build up, it can cause what your experiencing
Start with cleaning the throttle body, paying attention to the IAC passageway to try to clean the IAC. If this does not fix the issues, you may have to replace the IAC if it is to dirty to clean.
Thank you for using fixya and good luck, do not use carb cleaner, the carburetor cleaner is to corrosive to the gaskets used on the throttle body's. .

Posted on May 03, 2010

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1993 mitsubishi eclipse idle speed adjustment


The idle is controlled by the engine computer and it is not adjustable. Do the following if you have idle problems.

Here are the most common causes of idle surge, stalls at stops, slow idle speed, erratic idle speed, rough idle and engine hesitation (and other problems), it is in most cases the idle speed control air-bypass valve and or throttle valve and upper intake, these area's get full of gunk and combustion residue over the miles and cause idle issues (stalls, low idle) 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

Jun 26, 2017 | Mitsubishi Cars & Trucks

1 Answer

Idle adjustment


idle is not adjustable
pcm decide the idle rpm by iac valve
try to clean trottle body plate and iac hole with combustion chamber cleaner and pour the rest at the trottle body engine idle enough not to stall engine

Oct 11, 2013 | 2007 Chevrolet Impala LS Sedan New Cars

1 Answer

Car hiccups and stalls


Although your temperature gauge may show that it works, some models have a second temperature sensor for the engine management system.
That second sensor provides info which sets curb idle and timing advance. The "Cold start" feature is a part of this. The hic-cup is something of a bucking symptom as the engine controls toggle between hot and cold run settings repeatedly as water temperature is not stable.
In the past, I found several 1984 engines having defective thermostats which are tied into "Step-up" solenoids for the curb idle. What happens is idle speed is suppose to drop when the engine is hot.
When someone adjusts the curb idle while the engine is on the "cold setting", the setting(rpm) will be too low once the engine has heated up and the part drops to a hot setting.
So to clearly define your problem, you have 2 stemming from the same defects. The "in motion" problem is caused by timing changes based on temperature and the "idle" problem is caused by improper adjustment of the curb idle solenoid because of unstable operating temperature.
What you want to do is change your thermostat. This will give you a stable temperature. Then let the engine heat up and you should notice a "click" and the engine should idle down. It may stall. Then turn the idle rpm up until the engine will not stall.
The hic-cups should disappear once the operating temp is reached. If you still have problems then look for the water temperature sensors before replacing expensive parts.

May 24, 2013 | 1984 Ford Mustang

2 Answers

1999 mazda 626 lx engine stalls when put in any gear


It can be low fuel pressure issue or clogged fuel pump. Or its engine related issues,---------------
Check the help link mentioned below to troubleshoot the problem: ------

Engine stalls, car stalls while starting, vehicle stalls while starting, Engine stalls and dies, Car stalls and stops,
http://alltypesofpartsreplacing.blogspot.com/2012/12/engine-stallscar-stalls-while.html

------
These will help.
Thanks.

Dec 17, 2012 | 1999 Mazda 626

1 Answer

Just started idling rough, sometimes stalling


Shot in the dark here without knowing the vehicle but it could be an Idle Air Control valve starting to fail. An IAC (idle air control) motor is designed to adjust the engine idle RPM speed by opening and closing an air bypass passage inside the throttle body. The cars computer or PCM (powertrain control module) receives information from various sensors and will output signals to adjust the idle air control motor in or out to adjust engine idle speed by controlling engine idle air. An idle air control motor can fail one of two ways, either the motor short circuits and stops working or the motor will develop high resistance and cause the idle air control motor to react slowly, either failure can cause the engine to stall at idle. When a trouble code scan is performed it sometimes won't always detect a failed or weak idle air control motor. To check the idle air control motor remove the unit, with the wires connected turn the key to the "on" position without starting the engine, the idle air control should move in or out. If the idle air control motor does nothing it has probably failed, replace it with a new unit and recheck system. Note: while the idle air control motor is removed clean (use aerosol carburetor cleaner) the passages the idle air control uses to control idle air speed, also inspect the idle air control for a build-up on the seating (pointed) end and clean as necessary.

Jul 20, 2011 | Mazda B2300 Cars & Trucks

1 Answer

My 2003 Silverado 2500HD is idling around 500 RPMs and when I put it in gear, it stalls. Can it be adjusted? If so, how?


I don't believe there is a mechanical adjustment for that. However, there are a couple of things that should restore the correct idle and prevent the stalling.

1. Install a new air filter. For the engine to operate at it's maximum level it needs the right ballance of air, and fuel. Air filters are like the lungs for your engine.

2. You may want to see if your truck is equiped with an, " idle air control sensor," or similar part that helps maintain a steady idle.

I hope this helps.

Jan 26, 2011 | Chevrolet Silverado 2500HD Cars & Trucks

1 Answer

1989 Cadillac Sedan De Ville engine stalls when air is turned on...tries to take off when stopped at stoplight..sometimes dies while driving..


It sounds like the idle compensation circuit for the engine is dirty or faulty. Have your car checked at a shop. have them check the idle air motor for dirt or malfunction. It could be that it only needs to be cleaned or replaced.

The compensation circuit adjusts the idle/slow speed of the engine. The air conditioner puts a load on the engine and this circuit adjusts the engine speed to compensate. Also, when the car is cold this circuit adjusts the idle speed to prevent stalling and help the engine warm up faster. I hope this information helps you.

Aug 16, 2010 | 1989 Cadillac Sedan DeVille

1 Answer

Engine loses power and stalls


try adjusting the throttle position switch very hard to adjust right car will hesitate , not idle properly and hesitate when accellerating if not adjusted properly.

Jan 23, 2010 | 1991 Volvo 740

2 Answers

My 2001 buick lesabre turns off un expectedly


fuel pressure regulator!! vacuum run not electric!! happened to my 97 lesabre

Sep 17, 2009 | 2001 Buick LeSabre

2 Answers

1988 F-250 460 engine stalls when dribing down the road


On older, carbureted engines, cold stalling (and hard starting) is most often due to an automatic choke that is sticking, misadjusted or broken. Cleaning the choke mechanism with aerosol carburetor cleaner may free up the choke allowing it to work properly again. If the choke housing as an electrical heating element, the element may not be receiving voltage when the key is on, or the element may have burned out (check resistance with an ohmmeter).

Other causes of stalling with a carburetor include an idle speed adjustment screw that is set too low (turn screw to increase idle speed rpm). The engine may stall if the idle fuel mixture screw(s) are not adjusted correctly or the idle mixture port(s) are dirty or clogged with fuel varnish deposits (clean the carburetor and readjust the idle mixture screws for smoothest idle). Stalling can also occur is there are vacuum leaks in the carburetor, under the carburetor (bad base gasket), or any vacuum hose connections to the carburetor or intake manifold

Jun 22, 2008 | 1988 Ford F 250

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