Skip the auto shop - Our mechanics make house calls

Q: Coolant flow control valve and camshaft position

asked by on

My car has a metallic noise when I accelerate, auto zone diagnosed on check engine light, the coolant flow control valve position sensor circuit stuck also camshaft position- timing over retarded. How serious is this?

My car has 184341 miles.
My car has an automatic transmission.

A camshaft position sensor is a sensor that monitors camshaft speed to regulate ignition timing and fuel injection timing. This is a small sensor that is usually easily replaced and fairly inexpensive. The coolant control valve controls the flow of coolant in and out of the coolant storage tank. By diverting coolant into the storage tank, it can keep the coolant heated in order to keep the engine at operating temperature. This valve can become stuck and the computer will recognize this as an incorrect coolant flow which triggers this code and your check engine light. A YourMechanic certified technician can come to your location to perform a Check Engine Light is on Inspection on your vehicle or help you with a camshaft position sensor replacement.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Coolant flow control valve and camshaft position

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

Q: If a mechanic put one of the fuel injectors in the wrong cylinder, could this damage the ECU?

Hello. The ECU could not have been damaged by moving injectors to different cylinders. The injectors are not programmed to be in a particular cylinder of the engine. Having only two injectors reconditioned is the most likely cause for running...

Q: Car not starting, though dash lights work

I would start by checking the battery pack's service plug to make sure it's installed correctly. If the service plug isn't restored to it's original position, it can cause all of the warning lights to come on and prevent the...

Q: My Toyota Sienawas driving fine on the highway on 50mph but then it began slowing down. I checked and theres no transmission fluid

Hi Mariam. Thanks for contacting us tonight. It would be very difficult to speculate as to what's causing these issues, but the lack of transmission fluid has likely caused rather serious damage and possibly the source of your issue. It...

Related articles

How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.