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Car Forum / Toyota / Toyota Trucks / January 2006rad problem, temp spikes then drops
replaced thermostat on 92 22re, top up antifreeze in rad, the rad fills up the overflow rez and spills out. the engine tempgauge gets alomost to the red line as I first start driving then drops really quickly. Anyone have any ideas, airlock? Replace the thermostat again. Is it in backwards? > replaced thermostat on 92 22re, top up antifreeze in rad, the rad fills up > the overflow rez and spills out. the engine tempgauge gets alomost to the > red line as I first start driving then drops really quickly. Anyone have > any > ideas, airlock? does your top radiator hose get hot??? sounds like a potential head gasket... > Replace the thermostat again. Is it in backwards? > [quoted text clipped - 3 lines] > > any > > ideas, airlock? yes top hose gets hot but no symtoms of head gasket, if it is head gasket what should I be looking for. replaced rad cap as well. > does your top radiator hose get hot??? sounds like a potential head > gasket... [quoted text clipped - 8 lines] > > > any > > > ideas, airlock? > yes top hose gets hot but no symtoms of head gasket, if it is head gasket > what should I be looking for. Symptoms of a blown head gasket would be coolant forced out of the radiator into the resevoir and engine running hot/overheating. Did you have those same symptoms before you replaced the thermostat ? Just because there is no coolant in the oil/oil in the coolant... don't mean it's not the head gasket... when I blew up my head gasket on my 94' 22re, it was doing exactely that, for a long while before it actually went... the temp would get really hot, and then cool off, then get really hot again... it would fluctuate... Mine did this for months before the head gasket finally went.. Ian > > yes top hose gets hot but no symtoms of head gasket, if it is head gasket > > what should I be looking for. > > Symptoms of a blown head gasket would be coolant forced out of the > radiator into the resevoir and engine running hot/overheating. Did you have > those same symptoms before you replaced the thermostat ? so you wouldsuggest I get that head gasket changed? any idea ofcost? > Just because there is no coolant in the oil/oil in the coolant... don't mean > it's not the head gasket... when I blew up my head gasket on my 94' 22re, it [quoted text clipped - 12 lines] > have > > those same symptoms before you replaced the thermostat ? Yes same thing, however I have noticed when temp spikes the interior temp control is at max,when I notice the engine temp increasing I push interior temp to cool or off (no AC) then the temperature decreases for engine. > > yes top hose gets hot but no symtoms of head gasket, if it is head gasket > > what should I be looking for. > > Symptoms of a blown head gasket would be coolant forced out of the > radiator into the resevoir and engine running hot/overheating. Did you have > those same symptoms before you replaced the thermostat ? hahaha.... now that's f.cking odd.... when you turn the heater on the inside of the truck on... It "should" decrease your engine temp since the heater core is run from your antifreeze, and when you turn your heater on, your in fact decreasing the temp of your coolant by exchanging the heat from the coolant into the air that's going to heat your cab.... An old time "farm" trick is to turn the heater on high if the vehicle is overheating , and it will help cool it down.. I think it sounds like a headgasket.... I don't know how much a repair garage would charge to do it, since nobody but me has ever touched either of my toys... But to do it yourself would prob cost you in the neighbor hood of 50 bucks for all the gaskets that should or have to be replaced at the same time... It's really not a diff job.. Just make sure your engine is at TDC (top dead center) when you pull the timing chain, and don't turn the crank until it's back together... Ian > Yes same thing, however I have noticed when temp spikes the interior temp > control is at max,when I notice the engine temp increasing I push interior [quoted text clipped - 8 lines] > have > > those same symptoms before you replaced the thermostat ? thanks for all the info everyone, this is an odd one. I'll keep posting when I know more info. > hahaha.... now that's f.cking odd.... when you turn the heater on the > inside of the truck on... It "should" decrease your engine temp since the [quoted text clipped - 23 lines] > > have > > > those same symptoms before you replaced the thermostat ? not so odd, take the thermostat and drill a 3/16" hole in the disc. this has been covered on Roger`s website and in this newsgroup > thanks for all the info everyone, this is an odd one. I'll keep posting > when [quoted text clipped - 37 lines] >> > have >> > > those same symptoms before you replaced the thermostat ? I believe there is a hole in the thermostat(failsafe) I'll check again, thanx for the tip. > not so odd, take the thermostat and drill a 3/16" hole in the disc. > this has been covered on Roger`s website and in this newsgroup [quoted text clipped - 40 lines] > >> > have > >> > > those same symptoms before you replaced the thermostat ? |
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