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Search Auto Parts Search Low engine temp/no heat Sign up here!   Email This Post Auto Repair Home>> Automotive Repair>> AC Auto Repair Help Forum mousegunner New User Nov 30, 2009, 7:23 PM Post #1 of 5 (1975 views) Low engine temp/no heat Sign In I have a 2000 Chev S10 and the engine temp never seems to rise above 100 degrees. I've change the thermostat twice. I also get no heat. Besides checking the heater control valve is there something else to look for or check? Sidom Veteran / Moderator Nov 30, 2009, 9:43 PM Post #2 of 5 (1966 views) Re: Low engine temp/no heat Sign In 1st thing you probably want to do is make sure the gauge sending unit is accurate. Either compare reading with the comp temp sender on a data stream or measure the engine temp with temp gun or other temp measuring devise. As far as the core goes, check to see if both heater hoses are getting hot............ Tom Greenleaf Ultimate Carjunky / Moderator Dec 1, 2009, 5:45 PM Post #3 of 5 (1958 views) Re: Low engine temp/no heat Sign In ?? Running that cold! Is T-stat in right position? Some can go in backwards - no many but should be on the list. Spring end goes towards engine of typical thermostats. Does upper heater hose warm up quickly? I should end up about to hot to touch but stay stone cold till thermostat opens if not the thermostat still isn't right! T mousegunner New User Dec 2, 2009, 7:17 PM Post #4 of 5 (1941 views) Re: Low engine temp/no heat Sign In I meant to say it runs about 150, it normally runs about 200 degrees. The thermostat in in right because it wouldnt fit backwards. The 2 hoses heat up. I even ran the engine with out the radiator cap and can see the water circulating. The only thing I noticed was the 2 hoses that go into the firewall are cold. Hammer Time Ultimate Carjunky / Moderator Dec 2, 2009, 7:30 PM Post #5 of 5 (1938 views) Re: Low engine temp/no heat Sign In Sounds like it may be plugged up with Dexcool sludge. I would put some flush chemical in and then flush it thoroughly with a garden hose. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 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.   Email This Post   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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