Q: Check Engine Light and air conditioning problems

asked by on February 09, 2016

My Check Engine Light is on. I was told that the code reader says I need to replace the spark plugs, and the camshaft position sensor. I am also having issues with my air conditioner. Sometimes the unit stops blowing cold air out of the vents. Instead, a mist comes out, in which case, the air from the vents seems to stops blowing completely out of the front vents, while blowing hot air out the rear vents.

Check Engine Light is on Inspection $94.99 - $114.99 Get a Quote

The Check Engine Light illumination is most likely due to your engine having a misfire, and also getting a code to the cam sensor. If the misfire code is pointing to a particular cylinder misfiring, there could be another problem with the ignition system. The cam sensor should also be checked for failure.

The AC can then be checked for the system freezing up from possible temperature sensor failure, or a problem with the expansion valve. Only an in-person check can diagnose all three problems.

I would recommend that you start by having the Check Engine Light illumination diagnosed by a certified mechanic, such as one from YourMechanic.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing


Experienced Mechanic?

Earn up to $70/hr

What others are asking

How do I end a call?
To end a call, press the end call button, which is an icon of a phone with a line through it.
loud hum coming from the front tires when driving on highway
Hello. The brake caliper hanging up can cause the noise you are hearing. If the caliper is causing the brake pads to drag, this will occur. It can also be caused by a bearing failing, which will cause the noise...
My car is overheating I went to Pep Boys last night it shows a little leak in the radiator the heat temp is not going up it's stay
Let's be honest here - the temperature gauge isn't going to the "Hot" side of the gauge - yet. Modern vehicles actually use software to "normalize" small deviations in engine temperature, and keep the temperature needle in the center -...
What type of oil do I use in my altima
That's a good question. I did some research and it says 0W20. However, there is a small chance that my information is incorrect. Most vehicles, especially new ones, you can find the oil type on the oil fill cap. It...
Rear pinion seal leaking. Would i also need to change the flange?
The flange is integral with a splined yoke. The yoke segment (of the flange/yoke) has a precision, machined, highly polished surface which mates with the rubber seal (https://www.yourmechanic.com/services/pinion-seal-replacement). Since the rubber seal is spring loaded and is under tension against...
Squealing noise at front wheels when slowly accelerating or coasting?
Hello. The sounds you are hearing are likely related to the brakes. There are tabs that are manufactured onto brake pads. These are called wear indicators and they are doing exactly what they are designed to do. When the brake...
Will not acceleration
Hi there. It is possible that your Lincoln has entered a "limp mode"; which is when a problem is found in the transmission by a sensor. Essentially, it locks your vehicle in a low gear and restricts the speed, so...
replace oil pump and pick up tube
Hi there. Typically when the oil pressure changes based on the type of oil you are using, it's an issue with the pick-up itself. Quite often, the wrong sized or style of oil pump or a pick-up line that is...
car ran out of gas then i put some gas in it but now it wont start?
You will need to have the fuel pressure tested to see if the fuel pump in the fuel tank has failed. You may not actually ran out of fuel but the pump failed and stopped pumping. Have pressure tested and...

Related articles

P2433 OBD-II Trouble Code: Secondary Air Injection System Air Flow/Pressure Sensor Circuit High Bank 1
Diagnostic Diagnostic Trouble Code (DTC): P2433 P2433 code definition Secondary Air Injection System Air Flow/Pressure Sensor Circuit High Bank 1 Related Trouble Codes: P2430: Sec Air Inj Sys Airflow/Press Sensor Circ Bank 1 P2431: Sec Air Inj Sys Airflow/Press Sensor...
P0793 OBD-II Trouble Code: Intermediate Shaft Speed Sensor Circuit No signal
P0793 code means the transmission fails to provide a proper shift strategy due to faulty sensors, shift solenoids, or faulty wiring.
B2107 OBD-II Trouble Code: Front Wiper Motor Relay Circuit Short to Vbatt
B2107 trouble code means there's a circuit error in the front wiper motor relay, caused by a damaged relay, or damaged electrical components.