Join Date: Dec 2005
Location: N. Idaho, USA
Feedback Score: 0 reviews
Re: engine not warming up
I have been plugging it in, every night since thanksgiving, the first week we had mild weather, in the mid 20's in the morning, truck wouldn't warm up to the first mark on the gauge with it plugged in ALL NIGHT. The last couple of days it was 6F in the morning, same thing plugged in barely moved off cold. My drive is 2 miles city, 45mph, then 5 miles hwy 75mph, and then almost 3 miles city again. I have seen the gauge slowly move up on the highway which is fine, it would then indicate that it is a cold weather b***h like everyone is saying, but then I see the gauge going back down to cold, which would indicate the thermostat is open and flowing coolant to the rad instead of the bypass circuit. If it is a cold weather b***h and slow to warm up then the temp would just sit there and not go lower but continue its slow rise. Correct?
What I will do is this weekend remove the t-stat, suspend it in water and increase the temp, record when the t-stat opens, if it opens premature then there is a problem, if it opens on spec then my truck is the way it is and I will have to find ways to increase the heating, either put in a cab heater, block off the rad, or whatever else I can do.
As for the design of the cooling system if this is indeed NORMAL behavior then yes it is a BAD DESIGN, it is not even cold yet, if it goes to -25F I would be better off and warmer driving my snowmobile to work. Just because every vehicle out there does it the same doesn't make it right. When a cooling system is designed it needs to be designed for ALL PARAMETERS, both hot temps and cold temps. If the thermostat is too weak for the pressure and flow of the water pump and can't hold back the coolant from the radiator then that is a flaw. This is the 21ST century, why are they still using some mechanicle POS with a spring to regulate our engine temps, I think the auto industry could come up with something a little better than that. Remember the auto industry is there to make money selling cars, they only reason they do any improvements are for competitive reasons or government regs that make them -- smog laws, etc. Since all the others are cold blooded as well there is no incentive to make a better product until they need to. Just like the diesel horsepower wars, the 06s have more torque only because Dodge and GM have upped the ante. Competition and sales inspire improvement and development.
Friends don't let friends drive Chevy.