2014pinnacle Posted January 12, 2023 Share Posted January 12, 2023 Hi guys has anyone changed a cam position sensor on a 2016 pinnacle mp8 engine? Does it really need to have the depth measured and be shimmed or can I just unbolt it and put a new sensor in? I don’t have the tools mack says to use. Quote Link to comment https://www.bigmacktrucks.com/topic/71036-cam-position-sensor/ Share on other sites More sharing options...
Onyx610 Posted January 13, 2023 Share Posted January 13, 2023 Quote Link to comment https://www.bigmacktrucks.com/topic/71036-cam-position-sensor/#findComment-521046 Share on other sites More sharing options...
Mackpro Posted January 13, 2023 Share Posted January 13, 2023 Have you had any work done on the back of the engine like bull gear, camshaft or upper timing gear cover replacement? If not just use your original shim or shims. I don’t think I’ve ever had to re-shim one even after the above mentioned repairs. Hopefully the new sensor fixes it. I’ve only see maybe 2 sensors go bad. Most we’re erratic signal codes and it was the engine harness bad. I believe these sensors produced AC voltage and the faster the engine spins the higher the voltage. The harness usually test good but at high RPM’s the faulty harness can’t handle the higher AC voltage and sets the code. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/71036-cam-position-sensor/#findComment-521051 Share on other sites More sharing options...
2014pinnacle Posted January 13, 2023 Author Share Posted January 13, 2023 No never had any work done like that. I shut the truck down by hen had a hard time getting it to start again and then it threw a cam sensor code Quote Link to comment https://www.bigmacktrucks.com/topic/71036-cam-position-sensor/#findComment-521084 Share on other sites More sharing options...
Mackpro Posted January 13, 2023 Share Posted January 13, 2023 The cam sensor and crank sensor work together. When one goes out it will still run but like you said, hard starting. I believe it’s like 8 seconds of crank time before it starts . Quote Link to comment https://www.bigmacktrucks.com/topic/71036-cam-position-sensor/#findComment-521103 Share on other sites More sharing options...
Joey Mack Posted January 13, 2023 Share Posted January 13, 2023 Any chance the sensor plugs were swapped ? They are the same..... 1 Quote Link to comment https://www.bigmacktrucks.com/topic/71036-cam-position-sensor/#findComment-521123 Share on other sites More sharing options...
Anthony Corleone Posted February 23 Share Posted February 23 On 1/12/2023 at 9:38 PM, Mackpro said: The cam sensor and crank sensor work together. When one goes out it will still run but like you said, hard starting. I believe it’s like 8 seconds of crank time before it starts . I was told about that. So I'm going to replace both sensors and go from there. I will keep in touch to see if it works. Appreciate it thanks! Quote Link to comment https://www.bigmacktrucks.com/topic/71036-cam-position-sensor/#findComment-547005 Share on other sites More sharing options...
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