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no heat unless reving the engine to 3000 RPM
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nharbin1972
New User
Feb 22, 2013, 7:22 PM
Post #1 of 2
(1663 views)
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no heat unless reving the engine to 3000 RPM
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2000 S-10 BLAZER
4.3L
125000
I have a blazer that does not blow warm unless I rev the engine up to 3000 RPM. The line going to the heater core is warm the line coming out is cool. I have plenty of AF in the radiatior. I flushed the core last year. any assistence would be most helpful. Thanks
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Hammer Time
Ultimate Carjunky
/ Moderator
Feb 22, 2013, 7:43 PM
Post #2 of 2
(1655 views)
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Re: no heat unless reving the engine to 3000 RPM
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Just because you flushed the core, doesn't mean it is clear. You need to get a handle on what the actual engine temp is first. It may need a thermostat but I'm betting it needs a heater core.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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