Poor heater in all the Chevrolet Silverado's i have ever owned

[big gear head]

I didn't even know you could get a Silverado with a 4 cylinder. My 5.3 warms up well.

[69Z11Pacer396]

What year out of curiosity Ralph? Have a 1994 5.7 silverado I picked up for my daughter and heat is intense..

[Too Many Projects]

Originally Posted by big gear head

I didn't even know you could get a Silverado with a 4 cylinder. My 5.3 warms up well.

4 cylinder turbo became the base engine a few years ago. And with the reviews I've read about the poor mileage, I have no idea how it meets EPA regs, or helps the overall average of the division.

[Ralph Spears]

Originally Posted by 69Z11Pacer396

What year out of curiosity Ralph? Have a 1994 5.7 silverado I picked up for my daughter and heat is intense..

2024 Silverado regular cab

[Ralph Spears]

Originally Posted by 69Z11Pacer396

What year out of curiosity Ralph? Have a 1994 5.7 silverado I picked up for my daughter and heat is intense..

All my driving is within 3 miles of home at 20-30 mph below freezing temperatures it takes an hour to reach operating temp.

[Too Many Projects]

The only issue I ever had with a Silverado heater was on my 2000. I bought it 5 years old and the second winter I had it, it did not blow very warm, even though the temp gauge was at 210. I started reading about this online and people claimed the core plugged with crap from assembly. They, also, complained about the cost to get it replaced and the DIYers said it was a huge job.
As a former mechanic I had run into this years ago with certain models of cars with a heat hose shut off valve and all we did was back flush the hoses, valve and core, so that is what I did and it heated like a boiler after that and never gave another hint of cooling down from debris.

I know this is not the same as your engine not warming up. Maybe you could do an experiment with a piece of cardboard covering about half of the radiator and see if it heats up better. It could be a malfunctioning thermostat that is stuck partway open or opens too early. Have you talked to the dealer about this and is it still under warranty ?

[Ralph Spears]

I have owned 6 new Silverado's 4 --- 6 & 8 cylinder and they will not get up to temperature within 3 miles from home in the cold weather where i do all my driving. If i shut the heater fan off and dial the temperature control knob to cold, it will reach operating temp of 207 but when i turn the heater on and put the fan up to high you can watch the temp gauge go down to 180 this is all city driving below 30 mph

[Derek69SS]

I've never had one take more than about 5 minutes to warm up.

2000 with 5.3, 2011 with 6.2, and 2024 with 6.6 all warm up pretty quick, and all have pumped out a LOT of heat once warmed up.

[Too Many Projects]

As I suggested above, go old school and block off half of the radiator with cardboard. Be better than being cold.

[67since67]

Originally Posted by Ralph Spears

And by the way it only gets 10 mpg 4 cylinder 2024 (regular cab) 4 wheel drive Silverado all city driving

10 mpg, Yikes!! My 1500 Baby Max never gets below 20 mpg under any conditions.
FWIW Last month I was running around town at below zero and heat was toasty warm with negligible change on the temp gauge. No grille cover.