Yes it can. Usually a cam sensor (on GM's) will cause it to go into 'limp' mode. I do believe it is a timing belt on this model. Hopefully that did not break. If it did the engine would definately sound "different" while trying to start.
Testimonial: "Thanks for the suggestions. I decided to remove the cam cover. The upper timing chain had broken on the left side cam. Motor had been run low of oil."
Camshaft Position Sensor Circuit Malfunction
What does that mean?
This indicates that a problem was detected in the camshaft position sensor circuit. Since it says circuit, that means the problem could lie in any part of the circuit - the sensor itself, the wiring, or the PCM. Don't just replace the CPS (camshaft position sensor) and think that will definitely fix it.
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Symptoms
Symptoms can include:
A code P0340 could mean one or more of the following has happened:
With a P0340 OBD-II trouble code, diagnosis can be tricky at times. Here are some things to try:
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Thanks for the suggestion. I decided to take the cam cover off the motor to see if belt or chain. It is a chain, actually two chains, a top and bottom chain. There I found the problem. Upper timing chain had broken. My granddaughter had been driving the truck for several months and had not checked the oil. It was over 3 quarts low when I checked it. A lot of damage in timing compartment it appears.
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