letting your truck warm up

does anyone let there truck warm up before they drive it? i always have but i just wanna see what yall do

 

With the Toyota I'll generally wait until the idle drops below 1,000 RPM's, unless I'm in a particular hurry. During the winter it takes a little longer than during the summer.

With the Dodge I have to let it warm up or it drives like crap because it's carb'd.

With the bikes I let them get completely up to temperature before I go. The Ninja because it's got a 13,000 RPM redline, and the Suzuki because the mechanic at the dealership said that he sees a lot of camshaft scoring on my model from people who take off before the oil pump has had a chance to coat the whole top end. He recommended I let it idle for 2-5 minutes before I ride, so I just start it up, check the components, and then put my gear on, which usually takes a few minutes.

 

thanks for the replay. i let my 83 warm up like you becasue its carbd. i wait till the choke cuts off and then i go

 

I also wait for closed loop sign on my ultra gauge but you can also hear when it happens on the I4.

 

yeah i let it warm up until i hear that noise and the rpm's drop a little bit. then i go.

 

Always let past cars warm up, at least til the idle drops unless I'm in a big ol hurry. Do it now even with my '14

 

I just get in and go, gently at first. I feel the heater gets warm quicker when you're applying a little gas and it wastes less fuel.

 

My mom taught me a while back to always let the car warm up, (98' Cherokee, 03' Dodge Hemi) wait for the RPM's to drop, then go. My mom's pretty wise.

I've also been told in colder climates if you don't let the engine warm up, the sudden change in heat could crack the head. I'm not sure if it's true but I ain't taking the chance.

 

No point. The oil takes a good half an hour to reach operating temperature. I let it idle 30 sec or so to let the oil circulate, then drive away as normal.

 

Start truck, put seat belt on, go. Unless I am feeling extra lazy and it is super cold, then I will start it and go back inside to wait.

No point on warming them all the way up.

 

my routine I usually hit the remote start while I'm grabbing my keys/wallet/etc and by the time I lock up the house and get inside its already been running a couple minutes and cooled off. I do it more so that I don't want to get in a hot/humid truck

 

Anyone have some striaght facts on this? Like proof this can crack your heads?

 

No proof because it cant happen. Its not like you have an ice cold block that is suddenly hit with the full force of the sun.

Manufacturers say to let it idle until the idle drops and then youre good to go. Drive reasonably until its up to temp. Just because an engine has a 13k redline doesnt mean you should be hitting the rev limiter on every shift. Your engine should be running oil in 1 direction and not letting it backflow when its off so oil is coating everything within a second or two of the engine running.

Idling to full warm up at best wastes a bunch of gas. During the winter if im parked outside ill let it warm up enough to melt some ice, its more for my comfort than anything else. Same with cooling on a hot summer day.

 

http://www.tacomaworld.com/forum/2nd-gen-tacomas/5432-engine-warm-up.html

http://www.tacomaworld.com/forum/2nd-gen-tacomas/23833-do-i-let-warm-up.html

http://www.tacomaworld.com/forum/2nd-gen-tacomas/94678-do-you-warm-up-your-truck-before-driving.html

http://www.tacomaworld.com/forum/technical-chat/256528-2013-engine-warm-up.html

http://www.tacomaworld.com/forum/1st-gen-tacomas/325226-start-up-warm-up-time.html

http://www.tacomaworld.com/forum/2nd-gen-tacomas/306269-how-long-do-you-let-your-4-0l-warm-up.html

http://www.tacomaworld.com/forum/1st-gen-tacomas/307297-engine-warm-up-morning-necessary.html

 

I did the same as you when I had an 1988 which was the last year they came with a carb, and also waited till the idle dropped down.

 

If I can see out the windshield, I go.

 

It's always a good idea to at least let the truck start up and get into closed loop operation. Yes, the oil will quickly get into the bearings and coat everything pretty quickly, but starting a truck and throwing it in gear right after DOES increase wear on the engine components, and reduces fuel economy. I'm not saying you have to let it run for 5 minutes, but like a lot of people here, you should start the truck and wait for the idle drop, which is usually an indicator that you are in closed loop.

Look at it this way, how would you like it if someone came into your room while you were sleeping, then woke you up and started chasing you down the street without giving you time to get your wits about you? lol.

 

What actually triggers closed loop operation? I was under the impression it happens when the front cats have reached operating temp?

 

Closed loop operation is when the two Oxygen sensors have warmed up to operating temp. Depending on ambient temperatures this could be anywhere from 30 seconds, to 5 minutes. There are other factors which have to be met, like no codes stored for specific sensors and such, but the primary requirement is O2 sensor temperature.

 

1-3 minutes depending on how cold it is. In the summers here I start it, go back inside and wait about 5-10 min for the AC to cool the cab down.

In the winter, its 2-3. But I live in Az so its really not winter at all.