Q: Replaced Camshaft Position Sensor, now car idles rough, quits.

asked by on November 16, 2016

This past weekend, replaced the camshaft position sensor on my daughters vehicle. Was running fine Sunday and Monday. Tuesday, rough idle, no pick up upon acceleration. Wednesday, no pickup upon acceleration and stalled 2 times at stop light. Not sure what is happening.

My car has 120000 miles.
My car has an automatic transmission.

Hi there. Why was the cam position sensor replaced? Was there a code stored, check engine light on? If the rough idle and stall started after the sensor replacement, try putting the old sensor back in and recheck the operation. If the car still has the concern, then the cam position sensor may not be at fault and this is simply an unfortunate coincidence. Is the check engine light currently on? Check for any codes, stored or pending, and proceed from there. The idle air control valve could be sticking or failing. Attempt to clean the valve with a suitable cleaner and see if the operation improves. If it does not improve, it still may be the idle air control valve is beyond maintenance and will need to be replaced. The safest route to take is to have a qualified technician perform an inspection to avoid replacing unnecessary parts. Your Mechanic has several available technicians that can assist you with a rough idle inspection.

Was this answer helpful?
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

Get a quote

What others are asking

Service stabilizer and traction control warning is on.

Your car is equipped with wheel speed sensors at each of the four wheels which monitor wheel speed while relaying this information constantly to the ABS and traction control system which are controlled by the car's ECU. When the ECU...

How do I know which side of the car the fuel tank is on?

Some cars have their gas tank on the driver side, and some on the passenger side. As a result, it can be hard to remember which side of the vehicle your fuel tank is on. The fuel gauge is designed...

What are the ignition positions?

Your vehicle is equipped with four different ignition positions. To turn the engine off, stop your vehicle and shift into park, then turn your key in the ignition switch to the LOCK/OFF position by turning counterclockwise, or closest...

Related articles

A Buyer’s Guide to the 2013 Chevrolet Spark
The The Chevy Spark nimbly walks the line between being functional and being totally adorable. In the spirit of mini cars past like the Ford Festiva and the Yugo, this spritely little creation offers improved safety combined with the tech...
A Buyer’s Guide to the 2012 Chevrolet Tahoe Hybrid
Chevrolet Chevrolet has always had a good name when it comes to the vehicles they make, and that is doubly true for their SUVs. The 2012 Chevrolet Tahoe Hybrid has all of the great features that you would want from...
The Best Used Cars to Buy If You’re a Wedding Planner
As As a wedding planner, the demands placed on your time are going to be significant, even if you’re only dealing with one or two couples. You need to be a master juggler when it comes to your time and...