centralks Posted March 25, 2014 Share Posted March 25, 2014 Have tried different module, sensor, new wire harness, putting sensor closer to flywheel. Don't know if code is being induced by being hard to start. I tried unplugging sensor on other trucks & it makes that truck have the same conditions. Anyone with any ideas would be so much appreciated. Quote Link to comment https://www.bigmacktrucks.com/topic/35162-2000-em7-300-hard-start-code-32/ Share on other sites More sharing options...
Mackpro Posted March 25, 2014 Share Posted March 25, 2014 flywheel sensor (RPM/TDC sensor) bad or not reading correctly. It should start with out sensor plugged in but usually have to crank on it for 10 seconds as its using the cam shaft sensor to calcuate timing. Quote Link to comment https://www.bigmacktrucks.com/topic/35162-2000-em7-300-hard-start-code-32/#findComment-239201 Share on other sites More sharing options...
staxx Posted March 26, 2014 Share Posted March 26, 2014 Ring gear on flywheel might have slipped also. Quote Link to comment https://www.bigmacktrucks.com/topic/35162-2000-em7-300-hard-start-code-32/#findComment-239351 Share on other sites More sharing options...
Mackpro Posted March 26, 2014 Share Posted March 26, 2014 We had a customer that built up an ETECH engine from spare parts and put a VMAC 1992-98 flywheel in it. No knotched teeth on the flywheel for the sensor to read, had the the 3-2 code. Quote Link to comment https://www.bigmacktrucks.com/topic/35162-2000-em7-300-hard-start-code-32/#findComment-239355 Share on other sites More sharing options...
Challenger Posted March 26, 2014 Share Posted March 26, 2014 We had a customer that built up an ETECH engine from spare parts and put a VMAC 1992-98 flywheel in it. No knotched teeth on the flywheel for the sensor to read, had the the 3-2 code.I seen a customer replace a clutch and put the wrong flywheel back in. He had a cut flywheel for a Mack engine and figured they were all the same. Quote Link to comment https://www.bigmacktrucks.com/topic/35162-2000-em7-300-hard-start-code-32/#findComment-239385 Share on other sites More sharing options...
centralks Posted March 27, 2014 Author Share Posted March 27, 2014 Challenger said that flywheel could be wrong. Is there supposed to be notches other than the teeth for the starter? Or is there anyway to identify the correct flywheel? I want to thank everyone for there responses. Quote Link to comment https://www.bigmacktrucks.com/topic/35162-2000-em7-300-hard-start-code-32/#findComment-239459 Share on other sites More sharing options...
Mackpro Posted March 27, 2014 Share Posted March 27, 2014 Check this bulletin , it tell how to check the flywheel.3-4 code.pdf 1 Quote Link to comment https://www.bigmacktrucks.com/topic/35162-2000-em7-300-hard-start-code-32/#findComment-239468 Share on other sites More sharing options...
centralks Posted March 28, 2014 Author Share Posted March 28, 2014 Found that flywheel didn't have the two machined teeth on it. Someone put wrong flywheel in. Have flywheel ordered. Will let you know if problem is fixed. Thank you Mackpro 68 for pointing out the bulletin!!!!!!! Thanks to everyone for their input! Quote Link to comment https://www.bigmacktrucks.com/topic/35162-2000-em7-300-hard-start-code-32/#findComment-239619 Share on other sites More sharing options...
centralks Posted April 1, 2014 Author Share Posted April 1, 2014 Installed flywheel today. starts just like it should. Thanks to everyone offering solutions. Quote Link to comment https://www.bigmacktrucks.com/topic/35162-2000-em7-300-hard-start-code-32/#findComment-240207 Share on other sites More sharing options...
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