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Cadillac XLR Idle Air Control Valve Replacement

An idle air control (IAC) valve is responsible for controlling the engine idling speed and the cost of replacing one varies depending on the year, make, and model of your car.

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Cadillac XLR Idle Air Control Valve Replacement

RepairSmith offers upfront and competitive pricing. The average cost for Cadillac XLR Idle Air Control Valve Replacement is $127. Drop it off at our shop and pick it up a few hours later, or save time and have our Delivery mechanics come to you.

Car
Location
Quoted on
Price
2005 Cadillac XLR
4.6L V8 Base • 13,000 miles
San Jose CA 95120
Oct 30, 2020
$126 - $154
2009 Cadillac XLR
4.4L V8 Supercharged V • 115,000 miles
Santa Monica CA 90403
Oct 28, 2020
$108 - $132
2009 Cadillac XLR
4.4L V8 Supercharged V • 140,000 miles
Chino CA 91710
Oct 22, 2020
$116 - $142
2007 Cadillac XLR
4.6L V8 Base • 185,000 miles
Torrance CA 90504
Oct 18, 2020
$104 - $128
2007 Cadillac XLR
4.4L V8 Supercharged V • 218,000 miles
San Diego CA 92136
Oct 18, 2020
$105 - $129
2009 Cadillac XLR
4.4L V8 Supercharged V • 169,000 miles
North Highlands CA 95660
Oct 9, 2020
$111 - $135
2006 Cadillac XLR
4.6L V8 Base • 61,000 miles
Fresno CA 93723
Oct 7, 2020
$110 - $134
2007 Cadillac XLR
4.6L V8 Base • 218,000 miles
Garden Grove CA 92845
Sep 29, 2020
$120 - $146
2006 Cadillac XLR
4.6L V8 Base • 22,000 miles
Trabuco Canyon CA 92678
Sep 18, 2020
$124 - $152
2007 Cadillac XLR
4.6L V8 Base • 52,000 miles
Roseville CA 95747
Sep 16, 2020
$115 - $141
Last Updated:
Dec 17, 2020 6:25 PM
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What is an Idle Air Control Valve?

A four-word car part might sound confusing, but hang in there. You can keep up, I promise. An idle air control (IAC) valve is responsible for controlling the engine idling speed. See? Told you it was simple. The engine control module (don’t worry, this is just fancy speak for computer) supplies voltage to the IAC valve, which causes a pintle or rotary valve (depending on the car) to move in and out, adjusting airflow. More air means a higher idle. Now, your car might not have an IAC valve, as most modern cars have moved on to electronic throttle bodies. So if your car doesn’t have an IAC valve, you can skip this info. I promise you, it won’t need an IAC valve replacement if it doesn’t have an IAC valve.

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Symptoms of a failing Idle Air Control Valve

Bad idles

Okay, ready for some news that will knock your socks off? If the IAC valve, which is responsible for controlling the engine’s idle, isn’t working...the idling might not work right. If it feels like your car is idling too high or too low, there’s a good chance your IAC valve is the guilty party.

Poor engine performance

I get it. You might not notice when the idle speed is off. That’s understandable. But you better notice when the engine isn’t performing well. Surging and jerky acceleration is a sign of an IAC valve that’s not up to the task. So is stalling, and, in more extreme cases, a car that won’t even turn on.

Check engine light

Oh, you didn’t want to see this listed as a symptom, did you? I get it. You don’t pay attention to the check engine light. You think it’s meaningless, because it’s small and harmless looking. Spoiler alert: it’s not meaningless. Something’s wrong with your car, and it might be the IAC valve.

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How urgent is replacing an Idle Air Control Valve?

It’s not great to ignore an IAC valve that is malfunctioning. Your car won’t perform well, and you might get stuck with a car that won’t turn on, or will stall every time you’re at a red light. Not ideal. But not really a safety hazard either, and driving around with a busted IAC valve typically won’t put your engine at risk of further damage.

So get the IAC valve replaced, but no need to leave your friend’s wedding to do so. Unless you need a good excuse to get out of there.

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