Question about 2000 Toyota Camry Solara

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Over heating only at highway speeds

The car overheats when it is going at a high speed

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Is your rad fluid up where it should be?
Is your rad plugged so air can't flow or does it need to be flushed?
Replace your thermostat That may be the problem as well. If your fluid is up I would change the that is a likely problem.
Check all hoses and make sure they are not kinked as well..

Posted on May 31, 2015


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Posted on Jan 02, 2017

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SOURCE: car comes close to overheating while doing highway speeds

Sounds like either the thermostat or water pump. Either way, there appears to be a lack of circulation in the cooling system. Check the overflow reservoir. If it's backing up or not taking coolant, it's likely the thermostat, if it's working correctly, I'd lean toward the water pump.
All the best.

Posted on Jun 20, 2009

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SOURCE: air conditioner blower only works on high speed

Blowing air at high speed only indicates that the fan controller is dying or the fan itself is dying. Have a mechanic check this out.

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did you turn or replace rotors? are the tires in the same position as before repairs

Posted on Aug 25, 2009

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SOURCE: I lose heat and temperature at highway speeds in

sounds like the thermostat is jammed open, get it looked at as the head gasket could blow and destory the engine, worst case anyhow. sounds like its on its way out so can be unpredictable, they are very cheap though so should be a big job

Posted on Nov 08, 2010

  • 645 Answers

SOURCE: I have a 94 Camry

Check your radiator hoses to see if they are about the same temp when the car is running. The top hose and bottom should be the same. If not see if the top hose has pressure on it by squeezing it with your hand, If not replace the radiator cap. You be surprise how many people run around with a bad cap.

Posted on Dec 21, 2010

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I v checked the cooling system, no leaks, new water pump, water pipes solid, changed cyl. head gasket, new radiator cap, checked water level, oil level, fan working, water circulating.

no car make or model mentioned so getting an answer is hit and miss
however what you describe indicates a fan drive problem so if it is electric fan cooled-- check the fans for full blade speed ( weak motor operation) or if viscous fan hub ( fan clutch) replace the viscous hub
it is all about moving air through the radiator when the vehicle speed is slow and the engine rpms are high
if the fan is not doing the job of pulling air through the radiator , the car will overheat
at highway speeds the ram action of the air flow virtually makes a fan useless as there is more than enough air passing through the radiator to cool the water
Im guessing here but I suspect that you have a viscous fan hub

Mar 27, 2017 | Cars & Trucks

1 Answer


Need more input. If it over heats all the time, you could have a bad thermostat,, collapsed hose, stopped up radiator or radiator low on water. If it overheats at slow speeds but cools down when you ge to highway speeds, you may have a problem with th the fans and/or sensors.

Jun 16, 2011 | 1995 Volkswagen Golf

1 Answer


When does it overheat? At idle, or at highway speed? Is the coolant level where it should be? Overheating at idle or highway speed may be a faulty thermostat. If it overheats only at idle then it is likely a cooling fan fault. To determine if the fan is working start the engine and switch the A/C on, the fan should come on, if it does not, then you need to have the computer "scanned" to see if it can detect the reason for the fan not coming on. If the fan is switching on, then you need to have the water pump checked to see if in fact it is pumping coolant (this could also be the cause of overheating at highway speed) If you are overheating only at highway speed you may want to have the enigine checked for a blown head-gasket, or faulty radiator.

Apr 18, 2011 | 1997 Oldsmobile Silhouette

1 Answer

Does the hose on the fill tank need a clamp or not? why does vechile overheat if the fill tank on the side is full?

A clamp might not be needed, this is not under pressure. It would not hurt to have one, but a simple spring clamp is adequate.
A vehicle can overheat for many reasons. When does it overheat most? During periods of slow speed, stop-and-go, and idling? Or during long high-speed drives on the highway?

If it is mostly idle and slow speed, check your cooling fan. Mostly they are thermostatically controlled, only turning on when needed. If this does not work, check the fan relay, fan motor, and fan thermostat.

If it overheats mostly at high speed, it is most likely that the radiator is partially plugged and needs to be backflushed, rodded, or replaced.

If it always overheats quickly after startup (less than fifteen minutes) it may be that your thermostat is not opening properly.

Aug 24, 2010 | 1992 Ford Explorer

1 Answer

The engine overheats at highway speeds. The cooling fans are coming on and at normal speeds okay just at highway speeds 65-75 mph the engine overhaeats?


this is because the radiator may have chocks in it. so the rate of cooling might be reduced. so the cooling while normal running wil be ok but when you go in highways the engine generates more heat which in unable to cool by the engine.

try checking the cooling fan.this might have reduced the speed of running due to agening. so try replacing with high watt fan so that good cooling may takes place.

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Jul 09, 2010 | 2000 Lincoln Continental

2 Answers

Vehicle overheating

Several things can contribute to overheating. If the vehicle doesn't overheat at idle but slowly begins to overheat at highway speeds then I would suspect a partially plugged radiator that just simply can't get rid of the extra heat generated at higher engine loads and speeds. The radiator could be plugged internally which would require it's removal and professional cleaning [or replacement] or it could be plugged externally with bugs, dirt, and other crud that is restricting the airflow through it which can usually be fixed by thoroughly cleaning both sides of the radiator with a garden hose. If, however, the engine runs at near normal temps at highway speeds but overheats at lower speeds then I would look at the radiator cooling fan operation. Once you are above about 35 mph there is sufficient air being rammed through the radiator to cool it but below this the cooling fan[s] need to work to limit how warm the coolant can get. A more rare cause could be a leaking head gasket which often will cause a random sudden overheat condition [often with a loss of heat from the heater during the event] that initially may come and go for several days or weeks before becoming severe. Make sure your cooling system is properly filled with a mix of 50/50 coolant and water and hasn't accidentally been filled with only 100% antifreeze and this too will cause odd heating problems.

May 15, 2010 | 1988 Jeep Grand Wagoneer

1 Answer

Hi, I got two problems first is when the car idles or stops and stop lights for a period of time the car starts to over heat but when your going down the highway or just any street as long as the car is...

here are a few things to check, coolant level low, drivebelt defective, radiator could be blocked, faulty thermostat, electric cooling fans not working which makes the engine overheat, when going a certain speed it is air cooled, but when you stop it will overheat.

Jan 27, 2010 | 1999 Ford Taurus

2 Answers

Vitara overheat

When driving down highway only, it overheats? When running steady, I take it you mean, sitting idling? If it's only overheating at highway speeds, and all else has been checked out & is o.k., I'd take a close look at rad hoses for soft spots (easy to squeeze) that may be causing hoses to collapse at highway speeds & restricting flow of cooling system. Another thing to try is, turn your heater on high fan & high temperature when it starts to heat up & see if temperature gauge goes down (cooler) at all. If it does, then rad not doing it's job properly.

Jul 12, 2009 | 1999 Suzuki Vitara

1 Answer

Over-heating Ford Taurus!!!

Sounds like a stuck thermostat no heat water not circulating to heater core engine overheats stuck thermostat won't let water circulate through engine

Feb 16, 2009 | 2001 Ford Taurus

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