Due to a damaged cylinder wall, I had my engine ('03 w/6spd manual at 110,000mi) remanufactured by a large fleet rebuilder (all cyls sleeved to std, new everything internally).

It seems like the engine now takes FOREVER to warm up, despite installing TWO 195 deg thermostats since the rebuild (thinking it was a thermostat problem).

I now have about 250 miles since rebuild.

On the average day here now (40 deg F ambient air temp) on my back roads (35-45mph speeds) it takes 6 miles of leisurely driving (empty truck) for the temp gauge to come off the peg, 7.5 miles before the 140 deg mark is reached, and it's a full 9 miles (and about 20 minutes total) before normal temp is reached (about 1/2 needle below the 200 deg center mark).

I didn't own the vehicle last winter (and when I gave it to the shop 2 months ago for the engine work it was still 65 deg or so), but it seemed the "old" engine heated up in less than 1/2 that time.

Could you guys tell me about how long YOUR engines take at your current outside temps to warm to those gauge readings?

BTW, I think the gauge is accurate because I get zero heat from the heater until the gauge shows about half way between 140 and 195 degrees.

Thanks,
Bob

 

My '06 with 34k miles on it takes about 10-12 miles to reach full operating temps. To give you the specifics like you have listed, i will have to pay attention in the future. But I know it takes a while. pcm

 

mine takes about 12-16 miles but I'm mostly downhill into town from my place. If I plug it in at night, it only takes about 5 miles or so to get hot enough to turn the blower up from low.
The good part is that indicates a good running tight engine thats burning all the fuel and is very efficient. Think of it as a good thing.

 

Mine is the exact same way. Been that way since I bought it from the dealer 37,000 miles ago. I would guess that its working the way it should.

 

I have a 03 with 6speed manual with 223000 miles and it has always taken forever to warm up. I like the reply about a good running tight engine, makes me feel good about my engine.

 

Thanks, guys.

My experience has been in Powerstroke and MB diesels, and they are at normal temp in maybe 3 miles or so.

Sounds like Cummins is normal, though I'd have thought a "new" engine would warm faster until the "new" friction of a tight engine breaks in a bit.

The gassers I've rebuilt warm REALLY fast for the first few thousand miles. My Jeeps w/ the 4.0 liter all cast-iron straight sixes (100+K miles each) are up to full temp in 3/4 mile flat.

Maybe I need to block part of the radiator, because running cold mostly on short runs is bad for engines putting too much moisture in the crankcase and making carbon deposits on the rings.

Bob

 

Was it determined what caused the problem with the cylinder wall?

Dave