Do I have a bad injector?

[IBarr]

I watched the video posted by another member that does have a bad injector, and since I'm a new 3rd gen CR owner, I thought I'd watch my exhaust when I first start my truck.

Today it's about 80*F outside. Truck has been sitting overnight. Went out to start it, the intake heater light did not come on like it sometimes does (obviously due to higher ambient temps). It ran just a little but rough at first, and there was *some* bluish smoke out the tailpipe for the first 30 seconds or so. I wouldn't call it a "miss", but it just runs a bit rough, and there is some bluish smoke.

I'm just not sure if this is normal or not.

Can you guys help me out?

 

[Vaughn MacKenzie]

Doesn't sound normal to me, shouldn't ever see blue smoke from the exhaust on a cold startup unless it's colder than 50-60F unless you're at higher elevation.

Grid heater isn't supposed to come on above ~50F. I've had mine disconnected for a couple years to save wear & tear on the electrical system.

 

[MickeyMiller]

I don't get any smoke on start up with my '03, as long as temperatures are normal. I would see a little smoke starting in Billings in the winter...

 

[IBarr]

This morning it was a little cooler. The WTS light came on, and there was no smoke until the voltage gauge climbed back up (intake grid heater cycled off), then the smoke returned for a bit, then the grid heater cycled on again (volt drop), then the smoke went away. Based on this, I think maybe it is just that they programmed the grid heater to not come on unless it was cooler out than the 2nd gen truck I used to have.
I recall being surprised a few times that in the 07, the WTS (coil light thing) didn't come on when I would have guessed it would.

Sound OK?