My truck runs at around 160-170, and it takes incredibly long to heat up. Is something wrong?


Asked by Nov 27, 2016 at 11:01 AM about the 1990 Chevrolet C/K 2500 Silverado LB 4WD

Question type: Maintenance & Repair

I have no idea if I have an aftermarket thermostat or not, and it takes quite a
while to get heat. Is this normal? Any suggestions are greatly appreciated

5 Answers


Sounds like the thermostat is stuck open. You should have a 195°F thermostat in there. HTH. -Jim


160 to 170 mph is pretty fast for a truck, just sayin.

2 of 2 people found this helpful.

Lol Bob! Good one! -Jim

1 of 1 people found this helpful.

Yes very clever Bob, well i replaced my thermostat and it still runs at the same temperature! This one has me puzzled

1 of 1 people found this helpful.

If you live where it is really cold you may need to block off part of the radiator.

1 of 1 people found this helpful.

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