97mack427 Posted October 22, 2020 Share Posted October 22, 2020 (edited) Hello, this is my first post I hope I'm putting this in the right area. I have a 1997 mack ch613 e427 with a 18 speed and 3.86 gears Vin 070097 I have had this truck for almost 3 years and it gets the job done but just has lack of power I'm used to I have to shift alot We have just did a head job,head gasket, water pump,oil cooler ,all new fuel lines, new exhaust. I was hoping it would of helped but it did not. Any help would be appreciated Thanks wayne Edited October 22, 2020 by 97mack427 Quote Link to comment Share on other sites More sharing options...
0 alex g Posted October 22, 2020 Share Posted October 22, 2020 Did you change or check injectors while heads were off? Quote Link to comment Share on other sites More sharing options...
0 Lmackattack Posted October 22, 2020 Share Posted October 22, 2020 WELCOME TO THE ELECTRONIC E7.. they just lack power and are sleepy. you will need injector upgrades and possibly a ECM tune to get them to wake up and run like they should. I have only driven one E7 that performed well in stock form and I dont know why it was better than the other 10 I have driven Quote Link to comment Share on other sites More sharing options...
0 97mack427 Posted November 2, 2020 Author Share Posted November 2, 2020 Yes Injectors checked, new injector cups, I am located in Kansas city, would I need to take this in to mack or some where else to get it tuned properly? Quote Link to comment Share on other sites More sharing options...
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97mack427
Hello, this is my first post I hope I'm putting this in the right area.
I have a 1997 mack ch613 e427 with a 18 speed and 3.86 gears
Vin 070097
I have had this truck for almost 3 years and it gets the job done but just has lack of power I'm used to I have to shift alot
We have just did a head job,head gasket, water pump,oil cooler ,all new fuel lines, new exhaust. I was hoping it would of helped but it did not.
Any help would be appreciated
Thanks wayne
Edited by 97mack427Link to comment
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