It runs fine, flawlessly actually. New thermostat in it so yeah it gets to temp but when it’s -20°F no engine holds temperature, I don’t care who you are what you built it won’t hold temp. Newer engines are better, but I know this things gonna drop like a rock sitting idling. That’s why I want it.
So when it's -20 in my area, you're telling me that I can't get the cab warm enough?
Come ride in my truck.
I'll roast you out of the cab.
I pretty-much know what your REAL complaint is; I fought cold-cab for years before stumbling onto The Secret. I had a 210-degree thermostat in my truck, and I had to wear a snowmobile suit on the 30+ mile highway trip to work. When I got there, I warmed-up in the cafeteria before clocking-in. That was AFTER I had a shop replace the heater core.
GM used low-quality foam gaskets on the HVAC system. The gaskets turn to jelly when they get old. There was so much cold air blowing in under the dash that the heater couldn't keep up.
I discovered that when I finally got angry enough to rip the dash apart, looking for "something" that wasn't right. I discovered--and replaced--all the rotted foam.
The foam seal between the metal cowl and the plastic intake for the blower fan was the major problem. This was not an easy task. It was made worse because the Genuine GM service manual for '88 had
wrong instructions for taking the dash apart. I was too stupid to look in the Service Manual Suppliment for the corrected procedure. I assume that the later-edition service manuals have the correct procedure.
It's been years since then. The heater works better...the A/C works better without ambient air pouring into the cab under the dash. Also gave me good access for cleaning all the damned pine-needles and cottonwood fluff out of the A/C evaporator. The next thing I did was to remove the 210 thermostat in favor of an ordinary 195.
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