Bad thermostat?
#1
Bad thermostat?
The last couple of mornings the temperature has been around 15 degrees.I have been letting the car warm up for at least 30 mins. and the air is warm and the temp gauge is at 1/4.I figure it would be around the half way mark and I would have hot air coming from the vents.Is this normal for this kind of weather or is my thermostat hung open? Going down the road the air turns from warm to not so warm when air is hitting the radiator.
#3
#4
Re: Bad thermostat?
I believe the core has smaller passages as well. It is a widely known problem with 4th gens.
None of my other vehicles I have or ever had have had this problem.
#5
Re: Bad thermostat?
Nope if you look at one of the lines going to the core, it has a restrictor in it. That doesn't help in washing out the sludge that builds up over time. Inside the engine, build up on the water jacket walls sloughs off and clogs everything.
I believe the core has smaller passages as well. It is a widely known problem with 4th gens.
None of my other vehicles I have or ever had have had this problem.
I believe the core has smaller passages as well. It is a widely known problem with 4th gens.
None of my other vehicles I have or ever had have had this problem.
#6
Re: Bad thermostat?
Just let the car idle for 40 mins. without the heat on and the hoses were hot as was the radiator cap and the hose to the thermostat.The heat was hot also.Think I'm going to replace the thermostat first since it will be the easiest.It's not as cold now and it still takes to long to get to operating temperature.
Last edited by Red97LT1; 12-15-2010 at 08:12 PM.
#7
Re: Bad thermostat?
But if your coolant temp gauge is accurate, and it wasn't getting above the 1/4 mark for an extened period after a cold start, I wouldn't attribute it to a clogged heater core. You are probably on the right track with the t'stat. What temp t'stat do you have now? I've noticed it takes a couple minutes extra to warm up on a really cold day, with the 160* t'stat.
#12
#13
Re: Bad thermostat?
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