Freezing no heat with temp gauge going to 260 and red light on

Engine Temperature Issue - Please Help! - Mazda 6 Forums : Mazda 6 ...

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Sep 12, 2011 - Join Date: Mar 2006 ... to the gauge) and then after being shut off for 5 minutes, show COLD. ... I'll also confirm, with my AP, that my ECT is around 200 like it normally is. .... VSS, and ECT signals and calculate radiator's heat the radiation ... I noticed my engine temp needle was dipping down and then came ... CEL - Throwing code P0126 (Insufficient Coolant Temperature ...
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CarGurusAug 20, 2014 - Also as my temperature gage rises but car does not overheat. ... tempneedle gets up towards the red mark while you're driving, then yes, ... i have a 2006Pontiac Grand prix and my temp. goes up to the ... crzgrl637 answered 6 months ago ...the cooling fans won't kick on then you will see gauge over heat.

Car Engine Overheating - Causes and Symptoms of Over ...

If temp gauge is going into the red on a 3.4 engine it must be shut down or head damage can happen within minutes. I have a Monte Carlo that was overheating. I changed everything, thermostat, water pump, belt tensioner, radiator, all with no result. It would start out okay on a cold start but then I would come to a red light and the temp would creep up. Higher and higher until it neared the red zone. The heat would run cold. Most of the time, as soon as it was about to touch the red it would start to drop, the heat would blow hot again and all seemed okay but not for long. This would get worse and worse until the red hot light came on and I found myself on the side of the thruway. This problem is a blown head gasket. I had no other obvious signs, no white smoke from the exhaust, no oil in the antifreeze. I even changed the intake gaskets. Head gasket issues are common on the 3.4 liter engines.

fans came late on those car,like 212 and second fan comes on at 224,you reprogram it to come a lot sooner,,other thing is there might be gunk inside the block,and coolant has hard time to pass through,and staying longer than enough in block temp goes high,even tough the radiator is doing it's job,it is just coming out block lot hotter than it suppose to be,and gauge read the block not the radiator

You may two problems and one symptom. you may have a blend door problem that is not allowing air to circulate threw the heater core. also you may have a bad connection or weak coolant temp sensor showing you erratic readings and it may have nothing with the heat in the vehicle. you need to eliminate or separate the one of the the problems to diagnose your one symptom.

the first thing to try is turning the heater upto full heat(a/c off)if the temp guage goes down THEN CHANGE THE THERMOSTAT...(hot oil,if too hot, is thinner than the normal sae rating so the oil pressure will be lower.otherwise no real problem.

It sounds like your thermostat is sticking. You can tell when it sticks when your temp gauge spikes high and your blower won't blow heat and when it finally opens your temp gauge goes back down and you have heat again.

Have you checked the thermostat? Over heating will damage engine, do not drive car untill you fix over heating you will kill engine!!

change the thermostat and the temp gauge in the radiator

Help is HERE!
It looks like an Air lock scenario!
Park vehicle on level ground, when cold remove coolant filler cap, start engine and leave to idle, turn heater to hot blower on full. When at operating temp keep clear of coolant filler area and listen, hopefully gurgling then a boil over, wait and then top up with very warm water/coolant let settle it may boil over again whilst air is still in system.
Check for heat inside car, if hot and coolant settled replace cap but keep an eye on temp gauge for a while as air lock may still be further along cooling system.
Please press the Blue button if sorted!
Paul 'W' U.K.

try replacing the temp sensor.......its between the first and second spark plug on the drivers side of the engine........should have a single wire going to it.........on second thought check the connection to it first if that's good then replace the sensor.