Crank Shaft Position Sensor and check engine light

2005 HYUNDAI ACCENT
89,000 MILES • 1.6L • 4 CYL • 2WD • AUTOMATIC
Avatar
INDIANABETH
  • MEMBER
  • 1 POST
1. A friend/auto mechanic just replaced the timing belt and drive belts on the Accent. The engine sounds and drives fine and quiet.
2. After about 1hour of drive time, the check engine light lit up.
3. The scan at Advanced Auto said it was the crank shaft position sensor. Ordered the $40 one from Dorman Products. The one in stock at store was $113.
4. My husband replaced the sensor. I started the car and the check engine light went off. So I said, it was fixed and turned off the engine.
5. Later that day, I turned on the engine and the check engine light stayed on.

My next step is to return to an Advance Auto or Auto Zone to read the code. But.... if I were an experienced mechanic, how would I trouble shoot this?

Since the sensor went as soon as the timing belt was replaced, is it coincidence?
Nov 14, 2014 at 10:06 AM
Advertisement
Avatar
JACOBANDNICKOLAS
  • ASE Certified Mechanic
  • 110,194 POSTS
  • ASE Certified Mechanic
I would do exactly what you are preparing to do. The first thing is to determine what code is stored in the computer. If it is the same one (crank sensor), I would then start checking electrical connections to the sensor, damaged wires... Since it wasn't a problem before, chances are a wire was damaged or is pinched and is causing a problem.
Nov 14, 2014 at 10:09 AM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.