Another Damn Overheating Problem!

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Another Damn Overheating Problem! - 9/8/2008 3:30:36 PM    SnowRemorse   Posts: 4 Joined: 1/3/2008 Status: offline alright, so i got a 2002 v6 vortec 4.3. it has been getting unsually hot really fast (hot as in getting up to 210 and a little above 210 degrees quickly). it completlety over heated when i took a trip on the freeway the other day. my heater is blowing cold air. it will blow hot air every once in awhile for about 3 - 5 seconds, then back to cold. when the heat does kick on, the temp will drop to normal. and i just replaced the thermostat. any ideas? water pump maybe? thanks! Post #: 1

RE: Another Damn Overheating Problem! - 9/8/2008 3:50:57 PM    2002XTREME   Posts: 799 Joined: 10/7/2007 From: Long Island Status: offline almost sounds like a bad heater core.. _____________________________ add ons: Volant cool air intake Extra set of back up lights new Ice Bear tires NHRA Race Stickers Stock BOSE radio w/cd Custom taillights Custom Frt turn signals Moon/Sun roof (in reply to SnowRemorse) Post #: 2

RE: Another Damn Overheating Problem! - 9/8/2008 5:23:37 PM    Canadian88 Posts: 489 Joined: 11/23/2005 From: Detroit Status: offline Have you checked your coolant?  I assume you''ve taken this important step one, but if you haven''t it would be a cheap fix to your problem. _____________________________ 2003 4.3L 2WD Blazer 2DR K&N air filter Alpine S-type speakers in all 4 corners Damplifier behind all speakers and in cargo area Alpine CDA-9856 (iPod interface) Alpine 10" type S Sub with 400W Alpine MRP-M450 amp www.secondskinaudio.com (in reply to 2002XTREME) Post #: 3

RE: Another Damn Overheating Problem! - 9/8/2008 5:31:30 PM    swartlkk Posts: 14314 Joined: 5/1/2005 From: Waterloo, NY Status: online You must verify that the cooling system is full, there are no leaks, and all of the air is out of the system.  Also, if you replaced your t-stat, it is a good time to replace your radiator cap.  A weak radiator cap can cause overheating. _____________________________ Kyle- 2004 Rainier 1970 Chevelle - Resto 1974 K5 Blazer - Resto (in reply to Canadian88) Post #: 4

RE: Another Damn Overheating Problem! - 9/8/2008 8:52:40 PM    97ssblazer   Posts: 84 Joined: 8/12/2008 Status: offline if you have air in the system it can get trapped in the heater core.. time for a flush... _____________________________ 97 "SS" blazer ;) [image][/image] (in reply to swartlkk) Post #: 5

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