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Why does the car hesitate or power down when accelerating with a cold engine?
Wiki User
∙ 12y ago
If I remember right there is a technical service bulletin about water getting into the ecm. If I am right he may find the computer either full of water or if you live in a climate that has freezing weather, the case may even be cracked. In the past we have been able to perform the recommended repair according to the tsb sucessfully, in some cases had to replace the ecm. Unfortunatley this question was moved from the Old FAQ, and pertinent information is now missing. This particular answer related to a particular car that is no longer mentioned.
AnswerYour o2 sensor may be bad. AnswerOr your EGR valve/sensor.Answer
If its a EFI motor it is more then likely dirty fuel injectors, they just can't get enough fuel through them when its cold. Compare it to a older carby car that didn't have enough choke..
Usually the computer will not look at the O2 sensor when the motor is cold.
Wiki User
∙ 12y ago
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Why does the ac get hotter when you give it gas then when the rpm goes down it get cold again?
The computer turns the AC clutch off when accelerating for maximum engine power. The AC compressor uses up some engine horse power.
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all engines hesitate when cold they need to get to proper running temp
What causes a engine knocking noise when you are accelerating and the engine is warm doesnt do it when engine is cold?
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It was a coil pack.
Does a car's battery power decrease in cold weather?
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1995 Mazda MPV squealing noise coming from the engine during startup as well as accelerating on cold days?
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Bad plugs and or wires.
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With the engine cold, remove the cap on the power steering pump. Inside the cap is a dipstick with a marking for both the cold and hot fluid levels
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