Its an '01 Toyota Sienna and it heats up even after short trips. Its around 50F degrees out side so I don't think its the weather. It starts to heat up on idle or in traffic and cools down when I rev up the engine. Any ideas on what it could be and how to fix it would be greatly appeciated.
2006-12-19 16:14:14 · 13 answers · asked by Anonymous in Cars & Transportation ➔ Maintenance & Repairs
First off you need to have this checked out by a mechanic or someone you know who is car savvy.
It sounds like it could be a thermostat that's not opening fully or a clogged or dirty radiator.
You may want to take a garden hose after the car has cooled off and wash the radiator out of all dirt a debris on the outside of the cooling fins like dirt or leaves that have made their way into the radiator.
If the fan is not working properly you could detect this by opening up the hood and running the engine until the point that you know the car is hot by the temperature gages or light and look at the cooling fan to see if its turning you can hear it if its running.
Also look at the belt that turns the water pump because if its loose and turning it will not turn fast enough pump the proper volume of coolant through the radiator.
Most water pumps that go bad will leak fluid out of whats called weep hole on the water pump.
Hope these suggestions help you out.
2006-12-19 16:35:22 · answer #1 · answered by ke5hbd 2 · 0⤊ 0⤋
Sounds to me like you might have a faulty cooling fan. Revving the engine causes the water pump to work faster circulating coolant which cools it down.
Your vehicle is 5 years old. When was the last time you had the coolant flushed and filled? If you have not yet, now would be a good time to have it done.
Have a reputable mechanic check the fan operation. It might be time to have your hoses checked/replaced also. And if you are going to do all that, you might as well change the thermostat and replace the water pump too. Better safe than sorry.
2006-12-19 16:25:35 · answer #2 · answered by Lemar J 6 · 0⤊ 0⤋
you got a water pump going bad on it,,they wear the fins out that helps push the water through the engine,,and this makes the coolant go slower in it,,this is why it cools off when you rev the engine up on it,,i have seen cars 2 years old do this,and some of them still under warranty,,but check it out,,it either has to be that or the radiator may be getting stopped up on it,,good luck i hope this help,s.,,have a good x-mas.
2006-12-19 16:24:10 · answer #3 · answered by dodge man 7 · 0⤊ 0⤋
It could be a radiator or engine problem.
Temporary / emergency help for you - if your car is heating up too much, turn your interior heater on. This will draw the heat away from the engine and reduce temperature.
2006-12-19 16:23:09 · answer #4 · answered by shredded_lettuce 4 · 0⤊ 0⤋
could be a few things one it could be a bad thermostat, that is getting stuck closed. That would be the easiest and cheapest to replace. second it could be a bad waterpump that can be checked when the car is turned off by pressurizing the system and checking for leaks. third could be a bad radiator. and fourth and most expensive it could be a cracked head or bad head gasket that would cause antifreeze to leak into your oil. you could tell that by checking the oil to see if it has green antifreeze in it and it looks like snot
2006-12-19 16:20:25 · answer #5 · answered by pintoguinness37 3 · 0⤊ 0⤋
1. Clean radiator
2. check fan belt
3. check fan clutch (it should be hard to turn)
4. you may have a bad water pump
overheating at an idle sound like the fan no turning fast enough.
2006-12-19 16:23:31 · answer #6 · answered by ootsae 2 · 0⤊ 0⤋
When it overheats at idle it means ur fan isnt working. You should check ur radiator cap to see if its leaking. or u can flush ur radiator out and put new coolant and water in with the right mixture.
2006-12-19 16:22:39 · answer #7 · answered by prem1er_jdm 2 · 0⤊ 0⤋
You probabley need a new radiator, this is a big job and you would definately need to read your cars maintenance guide if you were to do it yourself. Otherwise a friend could help or you could just take it to a mechanic or radiator doctor.
2006-12-19 16:18:20 · answer #8 · answered by seashellshb 2 · 0⤊ 0⤋
the water pump is wore out, at low rpm the pump does not circulate enough water to cool the engine.
2006-12-19 16:22:19 · answer #9 · answered by arrestmered 1 · 0⤊ 0⤋
Sounds like your fan is not working.
Could also be the water pump but I would check the fan, then thermostat, then water pump
2006-12-19 16:19:40 · answer #10 · answered by Jeep Driver 5 · 0⤊ 0⤋