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no heat Sign up here! Search this forum this category all forums for All words Any words Whole Phrase (search options) Auto Repair Home>> Automotive Repair>> AC Auto Repair Help Forum carpenter New User Feb 3, 2008, 11:16 AM Post #1 of 7 (1856 views) no heat Sign In My 2006 gm truck has no heat when idling or while being driven in town.Out on the hiway it blows warm but not hot.Temp Gauge says fine. Any thoughts. Thanks Tom Greenleaf Ultimate Carjunky / Moderator Feb 3, 2008, 11:26 AM Post #2 of 7 (1851 views) Re: no heat Sign In Are you even off warranty with this? Check coolant level at radiator itself. If you find it low fill it but find out why it's low as they don't eat coolant normally, T carpenter New User Feb 3, 2008, 1:31 PM Post #3 of 7 (1850 views) Re: no heat Sign In i am over the 60000kms and the rad and overflow bottle is full Tom Greenleaf Ultimate Carjunky / Moderator Feb 3, 2008, 2:19 PM Post #4 of 7 (1847 views) Re: no heat Sign In ?? Working at least some at speed or increased RPMs suggests the coolant flow isn't proper for some reason. That could be a fault with the water pump but it's sooooo relatively new for that! What exact model and engine does this have? I don't know if I can even find stuff for things this new. Any help guys? TSBs - anything? If you are anywhere close to the standard 3yr/36k-60km mark I'd take it to the GM dealer and get this covered as a warranty problem or a defective part. GM can't afford to not please customers. If there is something wrong in its history like an accident or modification it wouldn't be their problem. Check that out. A maybe is that the pressure cap doesn't hold pressure (check by sqeezing a rad hose- carefully when warm/hot) but that's usually just a minor impact on system at temps where you would be requesting heat. Does anything with the hoses look kinked or wrong at all? If you feel the heater hoses (careful again) do they feel warm/hot to and from the heater core? Note: Smaller diameter of the two heater hoses would be the inlet side and would usually be cooler on outlet side but not cold and if so note that and hit back. ?? T way2old Veteran / Moderator Feb 3, 2008, 3:11 PM Post #5 of 7 (1844 views) Re: no heat Sign In Dealers can, and sometimes will, give a good faith warranty repair if you are not too far out of the warranty period. Never hurts to ask. Being way2old is why I need help from younger minds carpenter New User Feb 4, 2008, 3:17 PM Post #6 of 7 (1839 views) Re: no heat Sign In There was a blockage in the heater core. Dealer flushed it out and now it works.Cost me 1/2 hour of labour. Thankyou for the responses. Tom Greenleaf Ultimate Carjunky / Moderator Feb 5, 2008, 5:12 AM Post #7 of 7 (1835 views) Re: no heat Sign In Thanks for reporting the good news. Guess we'll wonder why or what could cause a restriction so relatively new?? T   Automotive Repair     Auto Body Repair and Refinishing     Heating or AC Issues     Electrical and Wiring     Brake Systems     Car Stereo Repair Advice     General Discussions     Car Making Funny Noises     Engine Fault Codes     Engine Troubles     Exhaust Systems     Steering and Suspension     Transmission Troubles     Tricks of the Trade Automotive World     General Discussions     Antique Car Talk     Car Shows and Events     The Bargin Bin     Motor Vehicle Inspection     Car Care Tips     Traffic Tickets     Gasoline, Motor Oils, Concept Cars and Engines     Auto Insurance, Financing, Leases, Warranties Truck Repair     General Discussions     Truck Engine Repair     Truck Suspension Repair Motorcycle Repair     General Discussions     Motorcycle Engine Repair CarJunky     Open Posting     Board FAQ's     New Board Suggestions

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