Question about 1998 Buick Century

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At idle engine surges when in gear .if i dont leave the ac on car will most likely stall but when driving it runs great

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Check for vacuum line leaks , also remove and clean the idle air control motor and clean its hole if problem persists,get the ecm checked it could very well be bad injector drivers.

Posted on Nov 13, 2010

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Location of . idle control valve in mazda6 3.0 2004 e 3.0


Do this procedure first before replacing the expensive IAC valve.

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

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1995. WHEN I START IT IDLES NORMAL BUT SURGES BUT IF I DONT TAKE OFF IT CLICKS AND IDLES MUCH FASTER BUT AFTER I AM ON THE ROAD IT RUNS GREAT NEED SOME HELP WHAT CAN I TRY


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My 1984 Rabbit Convertible runs great, but has a surge in idling and after driving for a short while when going to stop, stalls out?


you are right it is a air leak but either at the intake gasket or tb gasket seeing you replaced the hoses already. spray some carb cleaner around those areas while running and see if idle changes this will pin point the area of trouble. make sure you dont have any spark plug wires arcing out cause this could ignite the carb cleaner.

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1 Answer

Idle don't go up.


tell the full story, please.
you start car
and it runs.
and what do you do that causes the car to not respond.
are you driviing, what? we dont know what you are doing, or execting.
transmission slip
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Idles fine wont stay running, surges


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i know this may sound stupid but if your battery is old or a little weak on this vehicle the idle air control solenoid will act speradicley hunting for were it should be and the vehicle will stall.replace battery

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1 Answer

Stalling issues


Here is the most common cause of surges and stalls and low idle rough idle, it is the idle speed control air-bypass valve and throttle valve (IAC for short), they get full of gunk 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.

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Have a 96 camry 4 cyl auto. After highway driving, the idle becomes rough and wants to stall. The problem eventually goes away after driving a city speeds. Around town, it runs all day just fine. Help ,...


Here is the most common cause of surges and stalls and low idle, 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.

Dec 05, 2008 | Toyota Camry Cars & Trucks

1 Answer

My car surges after running for 10 minutes when I put it in parking or drive can you tell what is wrong .


Here is the most common cause of surges and stalls and low idle, 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.

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1 Answer

Car petrol engine revolution surges.


Here is the most common cause of surges and stalls, 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.

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