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rowdy74
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Jan 5, 2008, 7:18 PM
Post #1 of 19
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1995 chevy heatingcore
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have any one ever heir that a bad heater core can make ur truck over heat i got a 95 chevy 1500 thats over heating and dont no why i put a new thermalstat in it radiators good hose are good water pumps good
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sonordrumr
User
Jan 5, 2008, 7:30 PM
Post #2 of 19
(1795 views)
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Re: 1995 chevy heatingcore
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Rowdy,
I've never heard of a heater core causing overheating problems. Have you flushed the radiator? Also, is antifreeze still good?
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rowdy74
User
Jan 5, 2008, 7:34 PM
Post #3 of 19
(1794 views)
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Re: 1995 chevy heatingcore
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ya it good it new i just put it in there i get no heat in my truck and it over heats
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sonordrumr
User
Jan 5, 2008, 8:14 PM
Post #4 of 19
(1789 views)
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Re: 1995 chevy heatingcore
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What's good? Have you checked the heater hoses to see if heat is getting to core? Both hoses should be hot at normal op temp.
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rowdy74
User
Jan 5, 2008, 9:02 PM
Post #5 of 19
(1787 views)
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Re: 1995 chevy heatingcore
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there not hot so is the haetercore bad or the water pump its a new water pump like a yr old if that
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sonordrumr
User
Jan 5, 2008, 9:05 PM
Post #6 of 19
(1786 views)
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Re: 1995 chevy heatingcore
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You may have a blocked core or a water pump not circulating enough. Try flushing the core with low flow water both ways.
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rowdy74
User
Jan 5, 2008, 9:11 PM
Post #7 of 19
(1785 views)
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Re: 1995 chevy heatingcore
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ok and i just take the core hoses off and run water in both ins to do that right and and a block core will make my truck over heat
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sonordrumr
User
Jan 5, 2008, 9:15 PM
Post #8 of 19
(1783 views)
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Re: 1995 chevy heatingcore
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It won't make it overheat but it will cause low heat in the cabin. You may have to flush the radiator for overheating problems. Are you getting heat ok in the cabin?
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rowdy74
User
Jan 5, 2008, 9:17 PM
Post #9 of 19
(1781 views)
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Re: 1995 chevy heatingcore
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no i thank i will just buy a new waterpump and a new heatercore and see if that fixs it lol
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sonordrumr
User
Jan 5, 2008, 9:25 PM
Post #10 of 19
(1778 views)
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Re: 1995 chevy heatingcore
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Thats pretty expensive and laborious and you may not need them, man!
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rowdy74
User
Jan 5, 2008, 9:28 PM
Post #11 of 19
(1777 views)
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Re: 1995 chevy heatingcore
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its just 60 dollers for both
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rowdy74
User
Jan 5, 2008, 9:30 PM
Post #12 of 19
(1775 views)
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Re: 1995 chevy heatingcore
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but if the water pump was bad would it still let some water go throu it to the engen
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sonordrumr
User
Jan 5, 2008, 9:31 PM
Post #13 of 19
(1775 views)
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Re: 1995 chevy heatingcore
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Both together or seperately? That heater core is a pain to replace as is the water pump!
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rowdy74
User
Jan 5, 2008, 9:32 PM
Post #14 of 19
(1774 views)
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Re: 1995 chevy heatingcore
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but if the water pump was bad would it still let some water go throu it to the engen
thats for both
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sonordrumr
User
Jan 5, 2008, 9:38 PM
Post #15 of 19
(1772 views)
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Re: 1995 chevy heatingcore
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Sure but it woldn't circulate very well. It may even cause overheating.
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rowdy74
User
Jan 5, 2008, 9:41 PM
Post #16 of 19
(1771 views)
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Re: 1995 chevy heatingcore
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i guess ill find out tomorrow lmao i even toulk the top hose off and it spits out some water
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sonordrumr
User
Jan 5, 2008, 9:43 PM
Post #17 of 19
(1770 views)
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Re: 1995 chevy heatingcore
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Yeah i would hope so! Check with Tom tomorrow! Good luck!
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rowdy74
User
Jan 5, 2008, 9:45 PM
Post #18 of 19
(1769 views)
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Re: 1995 chevy heatingcore
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ok thanks
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Jan 6, 2008, 3:37 AM
Post #19 of 19
(1767 views)
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Re: 1995 chevy heatingcore
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Some engines use the heater core for the bypass system to keep engine uniform temp and can't be bypassed or left plugged up. I don't think the Chev "V" engines do that but not sure for all applications. If so, engine temp would read high and low and never be steady. You can feel hoses and find where the heat is going. With heat on high temp request and lowest fan both hoses to core would be pretty hot. Use common sense touching hoses as they are hot enough to burn you,
T
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