Moparmike Posted July 6, 2021 Share Posted July 6, 2021 Ok guys got this code replaced sensor and light still on Can someone guide me in the right direction for this Just popped on few days ago while at work Truck really don't seem to pull the same and kinda hard starting Replaced filters no luck What am I missing That's the only code I have Thanks in advance Quote Link to comment https://www.bigmacktrucks.com/topic/67262-code-32-speed-sensor/ Share on other sites More sharing options...
theakerstwo Posted July 7, 2021 Share Posted July 7, 2021 If this is a VMAC that code is to do with the sensor in the flywheel housing.The code is not telling you the sensor is bad but that circuit including the sensor is having a problem.The trouble shoot guide will tell you how to ohm out the circuit.I had this problem a few weeks ago after installing a engine that i had built and installed in my CH.When i found it with a dealer mechanic helping it was the flywheel starter ring had slipped on the flywheel making the six timing marks too wide or off from each other.The flywheel came from a running engine and i never looked at the timing marks.Also have you checked the end play on the crank?The troublw shooting guide will tell you to ohm the sensor and then connect it back up and ten ohm it at the harness were it plugs in at the ecm.Should be same value of ohms. 1 Quote glenn akers Link to comment https://www.bigmacktrucks.com/topic/67262-code-32-speed-sensor/#findComment-476445 Share on other sites More sharing options...
Joey Mack Posted July 7, 2021 Share Posted July 7, 2021 screw it all the way till it touches, then back it out 1 full turn and lock it down.. and ..... Pay attention to Glenn... jojo Quote Link to comment https://www.bigmacktrucks.com/topic/67262-code-32-speed-sensor/#findComment-476448 Share on other sites More sharing options...
Onyx610 Posted July 7, 2021 Share Posted July 7, 2021 Different code but same issue? https://f01.justanswer.com/HeavyEquipmentTech/7977f3ec-83db-47e4-9d6a-f6babf391cd7_Mack_Engine_pos_sensor_bulletin45-sb221037.pdf Quote Link to comment https://www.bigmacktrucks.com/topic/67262-code-32-speed-sensor/#findComment-476452 Share on other sites More sharing options...
Joey Mack Posted July 7, 2021 Share Posted July 7, 2021 I guess the sensor for the cam is the issue?? there is a spec for the distance to the cam gear from the sensor hole. I dont have a listing for it, however, I have seen it posted here before. on some of these I have removed the teardrop shaped shim behind the sensor, and the darn thing would run right...... anyway, there is a spec for it. mabey you can look back to find the post. Quote Link to comment https://www.bigmacktrucks.com/topic/67262-code-32-speed-sensor/#findComment-476458 Share on other sites More sharing options...
fjh Posted July 7, 2021 Share Posted July 7, 2021 3 hours ago, Joey Mack said: I guess the sensor for the cam is the issue?? there is a spec for the distance to the cam gear from the sensor hole. I dont have a listing for it, however, I have seen it posted here before. on some of these I have removed the teardrop shaped shim behind the sensor, and the darn thing would run right...... anyway, there is a spec for it. mabey you can look back to find the post. There was a tsb on this issue I think ! the front cover flexing or something like that if I remember right! 1 Quote Link to comment https://www.bigmacktrucks.com/topic/67262-code-32-speed-sensor/#findComment-476463 Share on other sites More sharing options...
Mark T Posted July 7, 2021 Share Posted July 7, 2021 Drive line vibration can also cause that code in certain situations Quote Link to comment https://www.bigmacktrucks.com/topic/67262-code-32-speed-sensor/#findComment-476474 Share on other sites More sharing options...
Vmac3 Posted July 12, 2021 Share Posted July 12, 2021 May want to check the vibration damper as well. This can cause this issue as well. V Quote Link to comment https://www.bigmacktrucks.com/topic/67262-code-32-speed-sensor/#findComment-476700 Share on other sites More sharing options...
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