what does IMO stand for? oh ok its one of those things that if i forget it wont hurt it

Coldest weather I've started my truck without plugging it in was minus 22 degrees F (at the shop one morning 3 years ago). Done the pre-heat thing started 'er up but she stalled. Done the pre-heat thing a second time, fired her up and never missed a lick. Hit the Jake (and the seat warmers:U:) and let 'er idle for a bout 10 minutes and headed on home, no problems.

In My Opinion... Cold is cold and the unassisted cummins doesn't like it much. Coldest failed start for me was -43 C and coldest start with block heater and other goodies was -33 C.

Engine Heater
 

Sorry for the dumb question, but I just got my truck and haven't finished reading the owner's manual. Is an engine heater an add-on accessory or is it already on my '01 Cummins?

its already there under the intake manifold

engine heater
 

So I just need to get a cord?

you have a plug its under your airdam on the front passengers side next to the frame rail , when its real cold out just get an extension cord and plug in to 110, thats your block heater , you also have intake heaters that cycle with the Wait To Start light and when your truck is below operating tempature

I thought some trucks didn't have the cord. All of teh cummins engines have the heater in the block. Look on the passenger side under the turbo just behind the oil filter. If you dont have a cord Geno's Garage sells the for a good price. ALOT cheaper then teh stealership.

find that cord, and plug her in!!!! i found it gets heat for the wife and kids a lot quicker. and there is nothing worse then your wifes cold toes!!!!!!!!!!!!! cause it will be your problem no matter what.

Thanks for the help. I found the cord. Doesn't look like it's been used much in the past, but since I bought the truck in Georgia, they may not have needed it. I'll clean up the plug and be ready for colder weather. As for the wife, her feet will have to wait, but I do have heated seats.