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HARD TO START ENGINE WHEN IS VERY COLD

WHY? MY PONTIAC CAR WHEN IS VERY COLD ITS HARD TO START ENGINE I WILL START MORE TIMES THEN HE WILL START. THE PROBLEM WHEN IS COLD TO HARD TO START, WHEN IT SUMMER EASY TO START ENGINE , WHY? WHEN IS VERY COLD TO HARD TO START MY CAR,, PLEASE HELP ME TO FIX THIS MY CAR PROBLEM , THANK YOU FOR HELP

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I read the other two solutions top your problem and I have to say, some people should not give advice, because the advice they are giving is not worth anything. NOW, let me tell you what is wrong with your car. You have a defective IAC (Idle Air Control) value. The IAC value (sometimes called a cold start value) is used as a means to quickly start your car when it is cold outside. Replace the IAC (easy to do) and your problem will be solved..

Posted on Jan 08, 2011

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  • Debby Honea Nov 05, 2011

    Great idea so where do I find the iac on "rusty bucket"? Thanks

  • Deano Jan 22, 2012

    The IAC value (or motor as it is sometimes called) is located on your throttle body. It will be a small cylinderical looking object that has an electrical plug clipped to it. On GM engines, it is right next to the Mass Air Flow (MAF) sensor. You can either remove it and clean it throughly with carb. cleaner or you can replace it. The cost of a new IAC is anywhere from $30-$50.

  • joe steadman Jan 27, 2013

    i will ghange this on my 01 yugon . i also cleaned the mass air flow sensor . it may help as well .,

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Change,plugs,cap&rotor,wires,change electric coil,change fuel filter

Posted on Oct 28, 2009

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Check your battery, and see if the cca's (cold crankink amps) are up to par. How to test is, when it is cold try starting, if it starts slow shut off immediatly and put a "jump" on it. If it starts quickly...replace battery.

Posted on Oct 31, 2009

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1 Answer

My car when using when using my autovox remote starter , starts for 1 second then dies 3 times in a row when cold but works find after warming up .


Cold weather makes the engine hard to start for two main reasons. First, oil thickens when it's cold, which increases friction and makes it harder for the staner motor to spin the engine. ... You can ensure that your car will start in the worst weather by keeping the engine or the battery, or both, warm.

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Cool mornings it doesn't want to start ,i have to turn the key to start and let it off several times and it will eventually start after that it starts fine all day and starts fine on warm days


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Nov 21, 2015 | Cars & Trucks

1 Answer

Car has trouble starting in warm weather


scan data if engine temp. is normal if ok see if there is engine faulty code.
hope it helps

Mar 20, 2014 | 1999 Pontiac Sunfire

1 Answer

Pontiac Codes P0300 and P0133 when cold won't start unless you punch the gas


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Dec 12, 2013 | 1999 Pontiac Grand Am GT

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Car starts hard when engine is cold it back fire or acts like it is flooding but starts good when engine is warm


how long has it been since a tuneup was done to the car.this maybe all that is needed.check the tps as these have a problem with hard start when cold at times.it pobably wouldn`t hurt to have the fuel pressure tested when cold.the map sensor can cause problems as well it this situation

Mar 28, 2012 | 1998 Ford Taurus

1 Answer

My temp gauge is not working and since that,when the car is hot,it stops everywhere and it is hard to start,like it s flooded ( to much gas )is it the temp gauge the problem!


Hello francis.

If the temperature sensor is defective it will send a cold signal to the computer.
This cold signal will make the engine run rich (too much fuel).
Cold engines need more fuel to run so that is why it is rich when hot.
But...the computer has a separate sensor from the gauge sender.
Which engine is in your Pontiac? 2.2 or 2.4 ?
Let me know here and I will send you some location diagrams.

Dec 28, 2010 | 1999 Pontiac Sunfire

1 Answer

97 firebird formula hard to cold start


Check the cold start injector useing a digital multimeter with a bar graph. Unplug the injector wires and insert the probes into the wiring plug, crank the engine and the bar graph should pulse if it does remove the injector and with the wiring reconnected and the injector held over a suitable container crank the engine and observe the spray pattern. If insufficient replace injector. This should be a starting point at least

Jun 05, 2009 | 1997 Pontiac Firebird

1 Answer

Hard to start in the cold


I believe it's your Throttle Position Sensor.

Dec 22, 2008 | 1995 Pontiac Firebird

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