pump. Its Hydrolic. Fan is running because I run the A/C & there is no fan clutch because it runs off the water pump..Pressure test was fine, no yellow or white under oil cap, so heads ok. Reservoir stays full until I release the escape valve which alleviates the bubbling in the reservoir. Note, the thermostat is located underneath, so it senses the cool water coming in before it gets a chance to circulate & cool down the engince. Why is this car set up like this? Can it be modified? V6, 100k. Help figure out why its overheating in traffic.
2007-06-14 15:27:45 · 5 answers · asked by esmeralda r 2 in Cars & Transportation ➔ Car Makes ➔ Toyota
a head gasket can leak into the coolant an not in the oil which causes bubbles in the coolant. make sure that all the air is out of the system. a plug in the upper part of the engine is to relieve the air out. those radiator caps with a relief lever are notorious for not holding pressure, a new radiator cap is cheep.keep topping off the coolant until it stays full in the am before starting. also a compression test may reveal coolant in the cylinders.
2007-06-14 15:41:07 · answer #1 · answered by jamesd 3 · 0⤊ 0⤋
Yah You've got one of those. Very strange that they run the cooling fans off the power steering pump. Why? beats me . The first time I saw one I wondered "what the hell". I guess it's the 21st century and we should realize we don't know it all. Anyway, Try replacing your thermostat. Yes it's in the lower hose where it goes into the front of the motor. Why? It's been a favorite placement for 20 -30 years. Figure out whats really wrong ,fix it , and it will work as well as any other Toyota on the road today
2007-06-15 02:20:09 · answer #2 · answered by David S 5 · 0⤊ 0⤋
what do you mean...hydrolic?....either you have an electric fan or a standard mechanical fan, that run,s off the water pump shaft.....fan clutch,s are only used to conserve horsepower...be sure the thermostat wasn't installed backward,s.....if your radiator has a pressure cap on it....have it pressure tested also...open your system [very carefully] when hot...relieve all pressure first...then remove the cap...run the engine...observe the coolant flow...you should be able to see the flow...if not ...either your thermostat is defective or you have an obstruction in the system...be sure all air is purged from the system...put the pressure tester back on & run the engine.....the pressure should never climb above the pressure listed on the radiator cap....if it does...you may have a bad gasket or crack in head,s or block....check all this first...good luck!
2007-06-14 22:49:21 · answer #3 · answered by slipstream 7 · 0⤊ 1⤋
Sounds like the temp sensor for the fan is bad or relay in the fan circuit...fuse ok? Check for power (two wires--one is for power, one is for ground) at the fan when warmed up to operating temp and a/c off---if power is there, then the fan is bad, if no power check the relay or temp sensor for the fan not the sensor for the dash gauge. Make sure the air dam below the bumper is ok--if damaged or missing, you'll have problems drawing air into the radiator at low speeds.
Try Eautorepair.com for online access to service manual for a small fee.
2007-06-14 23:31:05 · answer #4 · answered by paul h 7 · 0⤊ 0⤋
it could be over heating for several reasons one would be ignition timing is off ....check to make the a/c condensor isnt plugged with stuff .... otherwise it should be fine
2007-06-15 09:48:17 · answer #5 · answered by wonderboy n 5 · 0⤊ 0⤋