i could have sworn that i saw a thread like this before .... used the search function and nothing. anyways, like the title says .... how long do you let your truck warm-up in the morning?

here in so cal, it doesn't get very cold like other states, but it does get chilly.

about 10mins when cold. Cold meaning ( colder than a witch's (.) to 40 deg)

about 10mins when cold. Cold meaning ( colder than a witch's (.) to 40 deg)

x2

When its above 40 I let it idle for about a min before I drive it, I just take it easy until its up to temp.

this morning it was about 44 degrees. i had no idea how long to warm it up so i just did about a minute or two. but i did take it easy on the gas for a couple miles.

i think i did just fine. :D

Only long enough for the oil pressure to come up, and a few seconds more for the oil to get to the rockers etc, then drop it in reverse. I don't touch the throttle, back out of the insulated garage, then barely touch the throttle keeping between 1000-1500 rpm for 3-4 blocks, then drive normally until it is fully warmed up. I try not to stand on it until both the engine and trans are warm. My start up temps in my garage vary between about 45-80 degrees. I feel like anything more is just wasted fuel and additional engine wear, as diesel tends to wash the walls of a cold engine, diluting the oil and the cylinder walls themselves. I really don't believe you are hurting the engine at fast idle rolling the first few blocks. In the real cold, I'd let it warm for a couple of minutes. I'd also probably do the same or give it more time, or re-route if my house was close to the freeway or other road where I had to get up, and hold speed quickly. My 2 pennies.

If its below 0* I let it warm up (high idle) until I can feel my seat warmer start working (usually 3 minutes)

if its below 20* I generally let it warm up (high idle) for about 1-2 minutes, and then just take it really easy until the coolant temp needle comes off the bottom of the gauge.

If its below 45-50, usually 1 minute.

Above 50, I just give it like 10 seconds for the oil pressure to stabilize etc..

i usually wait until i see the water temp move.

I've heard that you just idle it long enough to get your amps up to 14.2 and then it's ready to go.

Whereabouts in So Cal are ya? Im in the IE and every morning its anywhere for 35 to 50 around this time of year. I let it sit a few minutes, let the right gauges move and take it easy. Im about 10 minutes from the 60 or 215 so I am easy on it til I hit a freeway, by then its warmed up and lubed up enough for regular driving.

i usually wait until i see the water temp move.

until the water temp gauge moves??? Id be sitting there for 20+ minutes...maybe your truck heats up faster than mine.

ben

I would warm mine up for a 20 minutes when the temps were 0 to 30 degrees. Then last month I took it in to the shop for a code about the egr. The tech ask me how long I was letting the truck warm up and I told him 20 minutes he told me that was too long and only let it warm up for 10 minutes tops.

I can't believe you let your truck warm up for 20 minutes. That's a long time.

When it was -30 this winter my LBZ sat outside overnight without being plugged in.

It fired right up and I let it sit for 5 minutes and took off, when I left there was heat already.

Quiex89 I dont let it warm up that long now. This is my first diesel and really did not know any better.

20 minutes? What a waste of fuel and engine wear. I don't know about your truck, but with high idle, even at -10f, my truck and tranny can hit operating temp in about 8 minutes.

Normally, if it's around zero or higher, I wait about a minute, tops, and then drive. If it's well below zero, I may be inclinded to watch my dashhawk with digital temp guages on the tranny and engine and wait for them to hit about room temp.

In all cases, I start slow and just don't punch it until it's warmed up a bit. I don't see babying it for the first couple of stop lights as being much different than high idle in the driveway.

I start it, wait until the volt gauge is over 14. When in low temps, and the high idle kicks in, it takes 3-4 minutes.

I allow 20-25 mins. Does GM have any thing to say about this?

Here in Florida, normally the coolant temps go down after I start it. ;)

Unless it's really cold out, less than 50, I'll give it 10-15 seconds then stay real easy on the pedal until the temps come up.

These trucks really dont warm up just idling.

If its 0 deg then maybe 5-10 min, otherwise it burns alot of fuel. If I had seat heaters I wouldnt idle so long. :lol:

I usually let it warm up for about 10 min. if i am in a hurry I just drive it like super slow until it comes up to temp.

If its below 0* I let it warm up (high idle) until I can feel my seat warmer start working (usually 3 minutes)

if its below 20* I generally let it warm up (high idle) for about 1-2 minutes, and then just take it really easy until the coolant temp needle comes off the bottom of the gauge.

If its below 45-50, usually 1 minute.

Above 50, I just give it like 10 seconds for the oil pressure to stabilize etc..

DURAtotheMAX how long did it take you to make over 16,000 posts?

I fire it up, give the oil pressure enough time to come up, check all the gauges, then drive off. Where I live the temperature is seldom lower the mid 40's, if it was freezing then I'd warm it up for a couple of minutes.

Rather than be concerned about warm up, it's the cool down I worry about. Living at the top of a steep hill my EGT is between 800 and 900 degrees when I get in the driveway. I let it idle until the pyrometer drops below 375 degrees then shut down.

DURAtotheMAX how long did it take you to make over 16,000 posts?


Looks like

Join Date: 04-21-2005

Posts Total Posts: 16,283 (11.06 posts per day)

I wait til my turbo makes vane position checking noise and then put the truck in gear and go. If its winter then 5min.

I just give it about 30 seconds and then drive it with very little throttle for a couple of blocks. If I am towing I will give it 5 min or so. I live in So Cal BTW.

DURAtotheMAX how long did it take you to make over 16,000 posts?

I used to be a moderator too, so many of my posts were little things like "moving to drivetrain section" and other mod-related stuff

ben