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Originally Posted by palomba16
 I don't have a bug, but it is a 01 Jetta 2.0. I came to this sight, because you people seem to know what your talking about then most Jetta sights!
Anyways here it is- 01 2.0 gas GLS jetta was driving the other day and the temp light came on and started to blink, so I looked at the gauge and it was pinned to red. I also have no heat! Popped the hood looked like everything was good with no overheating steam or any signs of overheating. I changed the thermostat and check the old one anyway and it was still good. Started it up and it won't come on until I drive it about 5 min, but it still happens. I looked for leaks and felt the hoses for temp and pressure, but everything looked good. The coolant level was at the min level the first time this happened and I did add the dexcool to it, because that will mix good with the G12 or whatever the pink stuff is. Fuses check,coolant check,hoses check,leaks check, thermostat check. Any ideas on what this could be? Heater core? Waterpump?Temp sensor? I can't even seem to locate the waterpump on this car. Really anything would help!!
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Hi, I had an overheat problem with my '99 about 4 years ago, and the dealer in Ogden Ut. thought they had it fixed three times, and 3 days before they found a bad thermostat???
VW has it stuck in a housing at the outlet of the waterpump, and the entry to the block??? Why, I Asked, and they couldn't give me an answer that made any sense to me! Also, '98 on 2.0 motors are noted for bad waterpumps!(plastic impellers seem to disintergrate over time and plug things up)
Good luck, and get a service manual if it's out of warentee!
Earl