Idle Question
#1
Idle Question
a friend of mine had a 05 ram 2500 ctd. 4x4. auto trans. 5 inch straight piped exhaust. and a tuner. yesterday it was 25 degrees outside and he went to start it and at first it idled normal, but after about 5 min. the idle got real loopy. like it sounded like it had a massive cam in it. the truck was like just chugging. he says its suppose to do that and i have heard other truck do this before.
my question is simply, what causes the truck to "chug" like this at idle?
thanks
my question is simply, what causes the truck to "chug" like this at idle?
thanks
#2
#3
I have never heard the 3 cyl idle in person. I've had an '00, '01, '06 and '08 cummins trucks and idled them @ temps down near 0F, I never had any of them go into the 3cyl idle. I sure wouldn't think they would do it @ 25F. I can't remember the specs for what triggers the 3cyl idle, but 25F seems pretty warm.
Jeff.
Jeff.
#4