CCM2990 Posted July 27, 2019 Share Posted July 27, 2019 Im about to buy a 2001 vision with a E7 engine but some people told me its a bad engine can I have some advice, its that engine bad? Quote Link to comment https://www.bigmacktrucks.com/topic/58322-2001-e7-engine/ Share on other sites More sharing options...
Mack Technician Posted July 27, 2019 Share Posted July 27, 2019 (edited) Fine engine, great chassis. The E-Tech engine of that vintage went through a period of short life on camshafts. That's how it got the negative attention. Mack did a bunch of product improvements to lengthen the component life, many of which your engine likely has. What color is the coolant in the res? Lot of ruined engines from guys dropping universal coolant into that block. Two things you should do...….. 1. get the engine hot and see if the Jake brake gets weak as oil get thin. That tells you if the engines tight and updated. 2. Pull an oil sample and have it tested. 99% of Mack E-Tech illnesses will be revealed with a $30 bill. If you want an overall opinion talk to Ezrider, he knows that chassis vintage, nuts and bolts and engine, better than most operators I've encountered. Click on his picture and you can message him via his profile. Edited July 27, 2019 by Mack Technician Quote Link to comment https://www.bigmacktrucks.com/topic/58322-2001-e7-engine/#findComment-428858 Share on other sites More sharing options...
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