Domore Posted February 12, 2015 Share Posted February 12, 2015 Is there anyway to shut off whatever cause my Mack plow truck to shut off after a minute or two. We have to increase the idle with the cruise control switch to keep it from stopping, but some times we forget to set the high idle when we exit the truck for to clear snow from light or whatever reason. I find this just giving extra wear and tear on the starter. Thanks Quote Link to comment https://www.bigmacktrucks.com/topic/38901-high-idle/ Share on other sites More sharing options...
theakerstwo Posted February 13, 2015 Share Posted February 13, 2015 Yes it can be disabled but you need to take it to the dealer. Quote glenn akers Link to comment https://www.bigmacktrucks.com/topic/38901-high-idle/#findComment-278703 Share on other sites More sharing options...
b61mack Posted February 13, 2015 Share Posted February 13, 2015 The 2007 7600 IH plow truck that I drive at work will idle for 1/2 hour before it shuts down. Quote Link to comment https://www.bigmacktrucks.com/topic/38901-high-idle/#findComment-278716 Share on other sites More sharing options...
Glensts Posted February 13, 2015 Share Posted February 13, 2015 My 1997 models shut down after 10 minutes which we like, so maybe you can increase the time. Quote Link to comment https://www.bigmacktrucks.com/topic/38901-high-idle/#findComment-278744 Share on other sites More sharing options...
hatcity Posted February 13, 2015 Share Posted February 13, 2015 mine shuts down after 5 minutes.needs to have computer set for timeno big deal to hit the cruise set Quote Success is only a stones throw away.................................................................for a Palestinian Link to comment https://www.bigmacktrucks.com/topic/38901-high-idle/#findComment-278748 Share on other sites More sharing options...
j_martell Posted February 13, 2015 Share Posted February 13, 2015 Granite I used to drive shut down after 7 mins....like hatcity I would just set the idle up....quickly became habit when exiting the cab Quote Lack of planning on your part does not constitute an emergency on my part.... Link to comment https://www.bigmacktrucks.com/topic/38901-high-idle/#findComment-278825 Share on other sites More sharing options...
Domore Posted February 14, 2015 Author Share Posted February 14, 2015 Thanks Guys. I guess I'll ask the dealer to increase the time. Quote Link to comment https://www.bigmacktrucks.com/topic/38901-high-idle/#findComment-278868 Share on other sites More sharing options...
cxn613 Posted February 17, 2015 Share Posted February 17, 2015 Not sure how true this is but some guys say they like high idle because it atomizes the fuel going in cylinders. Quote Link to comment https://www.bigmacktrucks.com/topic/38901-high-idle/#findComment-279506 Share on other sites More sharing options...
farmer52 Posted February 17, 2015 Share Posted February 17, 2015 High idle also produces some boost to provide positive pressure in the combustion chamber. This prevents excess fuel buildup in the crankcase (rings not sealing), not sucking oil down the intake valve stems, and also not blowing fuel/oil out the exhaust (slobber). 1 Quote Ken PRR Country and Charter member of the "Mack Pack" Link to comment https://www.bigmacktrucks.com/topic/38901-high-idle/#findComment-279508 Share on other sites More sharing options...
j_martell Posted February 18, 2015 Share Posted February 18, 2015 High idle also produces some boost to provide positive pressure in the combustion chamber. This prevents excess fuel buildup in the crankcase (rings not sealing), not sucking oil down the intake valve stems, and also not blowing fuel/oil out the exhaust (slobber).What he said. The only time I use low idle is before I shut down..... Quote Lack of planning on your part does not constitute an emergency on my part.... Link to comment https://www.bigmacktrucks.com/topic/38901-high-idle/#findComment-279550 Share on other sites More sharing options...
rsb502 Posted February 20, 2015 Share Posted February 20, 2015 yeah if its shutting down while your out to clean off a light its pretty quick, you can set the shut down time and on non CARB certified trucks shut that function off altogether, on carb trucks you have to set a time I believe. Quote "Any Society that would give up a little LIBERTY to gain a little SECURITY will Deserve Neither and LOSE BOTH" -Benjamin Franklin"If your gonna be STUPID, you gotta be TOUGH" "You cant always get what you want, but if you try sometimes you get what you need" Link to comment https://www.bigmacktrucks.com/topic/38901-high-idle/#findComment-279788 Share on other sites More sharing options...
upsman Posted February 22, 2015 Share Posted February 22, 2015 Our certified clean idle trucks have a sticker that says they can idle unlimited time at rpm's up to 750. Mack told our mechanics to not increase the idle speed as it is worse for the DPF then standard idle speed. Quote Link to comment https://www.bigmacktrucks.com/topic/38901-high-idle/#findComment-280140 Share on other sites More sharing options...
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