Increased idle speed?

[Shooter04]

It was 40 degrees this morning. I know for you northern boys that is nothing but for me it's miserable!

Anyways, this morning when i started the truck I let it idle for about two minutes while i did some things on my phone before I left. I noticed my idle speed slowly increased from normal to about 1,200 RPM's. Since it's never really cold here (south Texas), I wasn't used to having my truck do this.

Also the tailpipe was blowing smoke. It was a white/gray color and did it for about 15 seconds.

As soon as I put it into drive, the idle backed down to normal (around 600 ish).

I have a Superchips Cortex installed on the Mileage XS setting.

Is this normal for a truck when it's cold?

Never happened before

-Hunter

[thecaptin]

Normal. When the Intake air temp reads 40*F(I could be off on that number) or lower, the engine idles itself up to warm up faster, and also keeps the VGT vanes closed to help create a load on the engine.

[Dietoremain]

Originally Posted by thecaptin

Normal. When the Intake air temp reads 40*F(I could be off on that number) or lower, the engine idles itself up to warm up faster, and also keeps the VGT vanes closed to help create a load on the engine.

ha 7.3 forum silly not 6.0... but yeah the idle up should go up a bit but not up to 1200, maybe the superchips? hm

[SuperCrutyPS]

Mine goes up to about 1000-1100....no programmer. It's normal. It is weird the first time ya hear it.

Lately, it's been in the upper 20's / low 30s here in the mornings. Now, while I'm cleaning the frost off the windows, I almost have it down to know when it's going to kick up.

[thecaptin]

owned by not looking at forum headings again :doh

Dont know the specifics of the 7.3 idle kick up, but my dads 99 also has the EBPV and boy does that suck going down the freeway and having the truck being gutless due to it being too cold. And yeah. It was weird the first time i heard it as well.

[Shooter04]

Good so I'm not crazy

Just never heard it do that before. It's south Texas....we're lucky to get below 50!

[matter]

gotta to love the high idle, especially when your pissin off some bad neighbors when your leaving for work at 3.30 in the morning

[dieselburner21]

I love when I go into the store or gas station and it revs back up to 1000rpm everyone looks at it like its a miracle or something but completely normal. When its 15 outside during the day it loves to kick in by itsef but ya completely normal you arent crazy

[Shooter04]

Even my dad commented when he came out to hop in. Said "it sounds loud, what's wrong with it?". Diesels down here never get a chance to hit high idle....it's like the second coming when it does

[Young-SC-Owner]

Wierd mine has NEVER high idled, or had the EBPV kick on while idling.