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Question to feeder drivers.
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<blockquote data-quote="Gear" data-source="post: 2109712" data-attributes="member: 60511"><p>A bad coolant level sensor can cause a engine shutdown. Basically the EECU thinks you lost all coolant and shuts the engine down to prevent damage. You should see the Red X (shutdown light), malfunction light(lightening bolt) and have 15-30 seconds before the shutdown. If this is the case, it should leave inactive codes for the coolant level sensor. </p><p></p><p>Possible causes-</p><p>-coolant level sensor</p><p>-surge tank/overflow tank-Mack has had issues with the surge tanks</p><p>-Wire issue-Maybe a damaged wire that only acts up when you hit a bump. </p><p>-EECU</p><p></p><p>If no one can figure it out they should send it out to a dealer. Dealers have all the info needed for troubleshooting issues like this. </p><p></p><p>Intermittent problems can be very difficult to find. If they dont find a problem they have to take an educated guess. Thats why a dealer is the best place for this truck. If they seen this problem before they would start with the most common repair and release the truck. It sucks for you, but you cant repair what you cant see. </p><p></p><p>I would replace the surge tank with coolant level sensor. If it happened again, inspect every inch of wire for the low coolant sensor.</p></blockquote><p></p>
[QUOTE="Gear, post: 2109712, member: 60511"] A bad coolant level sensor can cause a engine shutdown. Basically the EECU thinks you lost all coolant and shuts the engine down to prevent damage. You should see the Red X (shutdown light), malfunction light(lightening bolt) and have 15-30 seconds before the shutdown. If this is the case, it should leave inactive codes for the coolant level sensor. Possible causes- -coolant level sensor -surge tank/overflow tank-Mack has had issues with the surge tanks -Wire issue-Maybe a damaged wire that only acts up when you hit a bump. -EECU If no one can figure it out they should send it out to a dealer. Dealers have all the info needed for troubleshooting issues like this. Intermittent problems can be very difficult to find. If they dont find a problem they have to take an educated guess. Thats why a dealer is the best place for this truck. If they seen this problem before they would start with the most common repair and release the truck. It sucks for you, but you cant repair what you cant see. I would replace the surge tank with coolant level sensor. If it happened again, inspect every inch of wire for the low coolant sensor. [/QUOTE]
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