5.9 24v idle speed in a Thomas.

[xrolo98]

Okay I’ve got a 2002 Thomas MVP-EF with a 5.9 24v Cummins and an AT545. It’s not the best combo but it works for my needs. Anyways, the tach is dead. Got a replacement to install but I’m not sure what the idle speed or high idle speed is on this engine. Does anyone have a similar bus that can help clue me in? I just want to make sure it’s calibrated correctly.

Thanks.

 

[jjaj823]

IIRC, the idle speed is 750 - 800 RPM when in gear. It will be lower when in neutral, probably 600 - 700.