I bought my 02 wrx wagon two months ago. just as sonn as I start loving it, i start getting problems. After a lot of research, i'm starting to think that i may have a head gasket problem, but im hoping im wrong.
-overheated on a hot afternoon, driving with lots of stoplights, coolant reservoir was empty
-1 week later: overheated at night, lower speed driving, coolant overflowing from reservoir
-next day:driving in heavy traffic, on a hot afternoon, overheated 1mile after 10 minutes of being shut off, coolant overflowing
-1 week later: mechanic couldnt get it to overheat
-1 hour later: overheated after 1.5 miles of downhill driving in neutral ,not during the 1.5 miles of uphill speeding, coolant overflowing from reservoir
-next day: mechanic couldnt make it overheat
-3 days later: overheated at night after being driven slightly hard temp stable at speeds above 40, coolant overflowing from reservoir. Found that the tube from the filler cap near the turbo was blocked.h
I was driving on a hot afternoon and it overheated. I pulled over and to see that my reservoir was completely dry. Luckily, i was driving to the local auto store. I filled up the reservoir with coolant and drove the 3 miles to home. the temp gauge would rise at low speeds and dip down at higher speeds. I got home, let the car cool off, and filled up using the radiator's cap.
The second time it overheated was a week later at night. I made it home before the gauge got too hot and saw that coolant had been overflowing from the reservoir. I read the manual( i never do that) and discovered the other filler cap. I filled it to the brim.
Took it to my friend's shop and he replaced the thermostat.
It overheated the next evening. I had been driving in stop and go traffic. I turned off the car for 10 minutes and after I drove another mile it overheated. I let it cool off then drove home 15 miles with no problems.
I decided to call that one time a fluke and kept driving it for a week with no problems. My friend heard about the one time and insisted i bring the car back. They couldn't make it overheat, so i took the car for a speedy run up a mountain.
When I hit the crest I threw it in neutral and made a gravity-powered speedy run down the hill. It overheated as I coasted to the stoplight at the bottom of the hill. I had to pull over every three blocks for 5 miles with the heater blasting to make it home.I would heat up faster the slower I moved The reservoir was completely full of coolant every time I checked it, but i couldnt open the filler caps because it was too hot. Got home and gave it more coolant after it cooled off.
Mechanics couldn't make it overheat, so he told me he couldnt help me and gave the car back.
It drove fine for 3 days, then overheated at night after I did a little hard driving. The temps stayed low at freeway speeds, but anything under 40-45 and it would overheat. the reservoir was overflowing.i stopped at a local tuner night and let the car cool for 45 minutes. they all laughed at me when i started pouring coolant . It wasn't all bad, though, I made a discovery: one of the tubes for my coolant system had been purposely blocked up by a bolt. The small tube that runs from under the fuller cap near the turbo had been closed off with a bolt and a clamp. I'm confident that the tube is for a coolant reservoir, but the other filler cap is attached to the reservoir. Is there any significance to that?
I don't think that the blocked tube is the issue, but im really hoping that it is because the only other cause I can think of is a blown head gasket. Please help me! my last car gave me trouble, and I really don't want a repeat of that.