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baptistbusman1
Senior Member
USA
175 Posts |
 Posted - 04/27/2010 : 5:57:10 PM
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I am working on a 2000 International with a T444E.
The problem we are having is when you try to start the engine, the starter will pulsate, cranking for 2 seconds then stopping, cranking for 2 seconds then stopping and so on and so forth. When it stops cranking the lights on the dash will go off also.
It has thrown no codes. I have switched the batteries, alternator, starter, ignition switch, glow plug relay, starter relay and crank relay. What have I missed? Do you think this could be a computer problem? This bus has also gone through 2 or 3 starters in the past and has also torn up the teeth on 2 different flexplates. I figure it's from the starter clunking in and out as it pulsates.
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Fastback
Top Member
1500 Posts |
Posted - 04/27/2010 : 6:59:09 PM
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| No crank and no dash indicator lights is a classic indicator of no power to the ECM. I would be suspicious of a bad wire or connection(s)in the "clean power" supply circuit that supplies voltage to the ECM. Perhaps the problem area is shifting/vibrating and making/breaking the circuit as the starter engages and disengages. |
Why yes, the ORIGinal CHARGER is a Fastback |
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mastertech
Advanced Member
274 Posts |
Posted - 04/27/2010 : 7:24:55 PM
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| Is it actualy cranking or just instantly chunking on and off. A bad frame ground would cause that. The clean power wires are notorious for just corroding anywhere in the curcuit. Especially by the left spring shackle where there is a weatherpack connector. |
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baptistbusman1
Senior Member
USA
175 Posts |
Posted - 04/28/2010 : 7:52:59 PM
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it actually does crank, it will just stop cranking then kick back on, like i've turned the key off. After watching it today, the power to the rest of the bus never goes off as the starter kicks off and on.
I also pulled the inspection plate on the bottom of the bell housing. As the engine was cranked over, I could see that the flex plate seems warped, as it's spinning it's very obvious it's not turning perfectly flat.
Could this engine be getting hydro-locked by fuel leaking past an injector? The engine will eventually start up, and when it does it is a little smokey until it warms up. |
I was formally Baptistbusman. However, I lost my password, and had not updated my email address.
Here is a link to my old posts. http://www.schoolbusfleet.com/forum/search.asp?mode=DoIt&MEMBER_ID=1846 |
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444E Starter Problems
