rdeis
Probationary Member
- 6
- 0
- Feb 28, 2013
-
Falcon,
Colorado
Hey, all. I'm not exactly a newbie, but I've been out of the scene for a while. I bought a broken 1Ga with an automatic transmission to fix up with my boys and it's got me stumped:
The car was parked for a long time, and the fuel system was predictable mess. We've got that all cleaned up now using injectors and ECU from a 94 Tsi and it's idling very nicely now and seems to drive OK, but it overheats under boost. It maintains temperature just fine at idle and cruising about the neighborhood on flat roads, but as soon as I start climbing a hill so the boost comes on, it start to overheat. Rest it at idle and it comes back down.
No obvious compression problems. New thermostat that appears to open and close properly. Replaced the radiator with a used one I had on hand and no change. No codes from the ECU or the TCU. No indication of anything amiss at all, actually, except that the temp gauge goes to the roof after we boost it for a mile or two.
I'd like to blame the gauge, but it reads cold and hot just as I'd expect it to- just right of center when the thermostat opens and the fans come on. Water pump is new, too, and I flushed the cooling system with clear water before putting the new pump on.
Has anyone else experienced something like this?
The car was parked for a long time, and the fuel system was predictable mess. We've got that all cleaned up now using injectors and ECU from a 94 Tsi and it's idling very nicely now and seems to drive OK, but it overheats under boost. It maintains temperature just fine at idle and cruising about the neighborhood on flat roads, but as soon as I start climbing a hill so the boost comes on, it start to overheat. Rest it at idle and it comes back down.
No obvious compression problems. New thermostat that appears to open and close properly. Replaced the radiator with a used one I had on hand and no change. No codes from the ECU or the TCU. No indication of anything amiss at all, actually, except that the temp gauge goes to the roof after we boost it for a mile or two.
I'd like to blame the gauge, but it reads cold and hot just as I'd expect it to- just right of center when the thermostat opens and the fans come on. Water pump is new, too, and I flushed the cooling system with clear water before putting the new pump on.
Has anyone else experienced something like this?