S
supranut
Guest
My 88 MK3 NA just keeps overheating no matter what my mechanic does to fix it. A new head gasket when I purchased the car in November. I knew that when I bought it dirt cheap. The last six weeks or so I have had the rad changed, put in an electric fan with a high output fan with a sensor to regulate when the fan comes on. A new rad cap and themostat of course. A new Fram oil filter and battery yesterday just in case. A pressure test on the cylinders a pressure test on the cooling system no leaks on each test. Did a dye test had one leak causing bubbles in the rad fixed the bubbles. If I drive 100km only I can drive about 50km without overheating but when I check the coolant level I need about a litre to top it up. Coolant has come out through the overflow. If I drive more than 120 then I can only go about 20-25 km and the temp gauge goes almost all the way up, this is with the A/C on full blast. If I drive without the A/C on I can drive maybe an extra 20 kms. When the dye test was done he looked in the cylinders to see if any dye was present inside the cylinders and there was none present. All the hoses were taken off to see if there was any blockage and there was no blockage. The car can idle forever without overheating even a little bit. I'm going crazy, my mechanic is going crazy. If anyone can give any suggestions I would really appreciate it. I'm using my mechanics car for a week long fishing trip tomorrow so if anyone suggests anything today on this board I'll suggest it to him before I go. If not when I come back next week hopefully your suggestions will help fix the problem if he hasn't found it by the time I get back. Thanks everyone in advance for all suggestions this is a great board for problem solving. Have a great day.....TT