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01-18-2013, 12:20 AM | #1 | |
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2000 suburban heater I not blowing hot air
I have a 2000 suburban with a 1500 motor and 300000 miles. Last year I replace the water pump and the thermostat. The heater would blow warm but not hot . But only when I start to drive. Yesterday I decide to change thermostat again thinking the new one from last year was faulty. Now the heater only blows cold air . Can someone help. What's the problem
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01-18-2013, 06:16 AM | #2 | ||
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Re: 2000 suburban heater I not blowing hot air
Quote:
start cold engine with the coolant cap off. run engine until it is at the operating temp 190 deg f. rev engine to 2ooorpm a few times. fill coolant to the full hot mark with 100% GM approved dexcool. this is the air purge proccedure. |
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01-20-2013, 02:07 PM | #3 | |
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Re: 2000 suburban heater I not blowing hot air
With that many miles have you flushed the cooling system? I have gone as far as undoing the heater hoses and flushing the heater core both ways you would be surprised how nasty it is sometimes.
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01-21-2013, 09:30 PM | #4 | |
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Re: 2000 suburban heater I not blowing hot air
Like jCAT, I also think your issue may be related to air in the coolant system, you need to purge out all the air. This is not so easy on modern vehicles as hoodlines have dropped (according to the mechanic on the radio I heard Saturday). Does the 2000 have a traditional radiator cap or must one fill through the reservoir like on my 2005?
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03-06-2018, 11:59 AM | #5 | ||
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Re: 2000 suburban heater I not blowing hot air
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__________________
2004 Yukon XL Denali Luxo-barge for towing. 6.0L AWD grandpa hauler 2005 Suburban 1500LT/awd/tow/everything else...soccermom cruiser 2008 Nissan Versa HB...wife's skateboard 1997 Jaguar XK8 convertible...best road car ever 1966 Mustang GT convertible...fully restored concourse show car |
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03-14-2018, 04:46 PM | #6 |
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Re: 2000 suburban heater I not blowing hot air
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