Hello. i have a 1998 subaru outback. i replaced my radiator hoses, thermostat and flushed the system. I can drive the car around town without any problem, but if i am driving it on the highway for about 15 to 20 minutes. when i pull off and slow down i see my temp gauge rising. when riding around town, my car warms up to its regular temp and rides fine, but when you hit higher speeds for a longer period of time, thats when it decides to heat up...
i replaced radiator hoses due to a leak, and i filled it with coolant and let it run to prevent air pockets. since i was down there, i replaced the thermostat.
compression leak? head gasket? cracked head? cracked block? anyone know??????
2007-12-21 03:11:44 · 6 answers · asked by Anonymous in Cars & Transportation ➔ Maintenance & Repairs
It sounds as if the coolant is not properly flowing through the system to provide adequate cooling. If the problems arised after the coolant system service the thermostat could be in the wrong way. The 2.5L engine has a problem with head gasket failure on 97-99. The 2.2 i think is not as prone to this problem. Look at your coolant reservoir when idling, do you see bubbles periodically float to the top? If so it is head gasket problem. If you have coolant in your engine oil or vise versa it could be a blown head gasket, cracked head or cracked block.
2007-12-21 04:00:52 · answer #1 · answered by sonnie_b 4 · 0⤊ 0⤋
2 things. First of all, take the car to a do-it-yourself car wash, clean the engine compartment. Remove panel (if any) between the radiator and the A/C condenser. Flush all debris out from in between and flush with water spray through vanes in front and back of rad. This will insure that the air flow around the rad is even, smooth, and free of 'hot' spots. Second, locate your fan switch (it turns your electric fan 'off' and 'on') Remove it, and clean all the debris from the business end of switch. If necessary, replace it with genuine Subaru part. If this fixes the problem, then flush out system and use only genuine Subaru coolant. Anything else will eventually eat holes through your head gasket and aluminum heads. Actually, you can use any of the "genuine" Japanese coolants. (Toyota, Honda, Infiniti, Lexus, Nissan, etc.) The formulas for these cars are very specific in content. If you still have a problem, remove your spark plugs one at a time, and compare their tips for discoloration. If they are not all the same, you may have a gasket leak. E-mail me back with your results.
2007-12-21 04:35:25 · answer #2 · answered by Robert M 7 · 0⤊ 0⤋
It sounds like the fan may have a disconnected wire, blown fuse or is not working, based on the fact you have worked in the area, you may have disconnected the fan wire with out knowing. There is a possibility the radiator is clogged or you have the wrong temp thermostat. Could you have put the thermostat in backwards, I have done that myself? Good Luck and God Bless
2007-12-21 03:28:18 · answer #3 · answered by Anonymous · 0⤊ 0⤋
did u use 50/50 coolant/water...100 % coolant isnt as good...is it tuned,,a poor running car changes fireing of fuel... ck engine lite on...scan it..a bad sensor can screw up whole system...do compression test...easy and cheap.. have mechanic check coolant for combustion gases...those test will tell all...is fan working?may have cloged radiator...is it really overheating ? mayb gauge is off
2007-12-21 03:29:50 · answer #4 · answered by Anonymous · 0⤊ 0⤋
You may have your thermostat installed up sides down so it is not functioning correctly once it gets heated up or your water pump maybe going out.
2007-12-21 03:24:58 · answer #5 · answered by JT T 3 · 0⤊ 0⤋
pull the oil dipstick and look for discolored oil. may look cream colored or have water droplets on the stick. if there the head gasket is bad.
2007-12-21 03:27:15 · answer #6 · answered by Anonymous · 0⤊ 0⤋