HighwayCowboysLLC Posted 5 hours ago Share Posted 5 hours ago I bought a 1990 Mack super liner e7-400, 13 speed road ranger. Bought it out of Ohio last year, I was able to get the history of the vehicle using MackTruckHistoricalMuseum.org. I found out it is a one owner truck from factory. I drove it home 230miles home never missed a beat. Although I did notice when I would accelerate from 45-70mph i would hear a clattering sound. I parked it up in the yard and have been doing little work to it here in there mainly on the interior. I did put a new oil pan gasket mainly to see if there were any chunks of metal in the pan or glitter, but everything looked good! I start it up every chance I get sometimes that’s weekly sometimes that’s once a month, regardless it always starts right up. While at idle theirs no clattering sound, when I drive it around the yard 20/30mph theirs no sound but when I get it out on the road 45-70MPH is when you can hear the clattering any idea? Quote Link to comment https://www.bigmacktrucks.com/topic/75693-e7-400-questions/ Share on other sites More sharing options...
fjh Posted 4 hours ago Share Posted 4 hours ago Air ride suspension? Check ride height! Quote Link to comment https://www.bigmacktrucks.com/topic/75693-e7-400-questions/#findComment-577870 Share on other sites More sharing options...
HighwayCowboysLLC Posted 4 hours ago Author Share Posted 4 hours ago 10 minutes ago, fjh said: Air ride suspension? Check ride height! I will look into that! Quote Link to comment https://www.bigmacktrucks.com/topic/75693-e7-400-questions/#findComment-577871 Share on other sites More sharing options...
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