I had a slow coolant leak in my 2000 5sd tdi with 246,000 miles on it. Since it was semi retirement because I had a 2010 which I sold back to Volkswagen, the old jet I was pressed back into service, but maintenance had slipped. The week before this happened I had just towed my trailer up into the mountains .
The next week, As I drove down to the airport on my way over mountain passes my car overheated and I immediately pulled to the side of the road.
Instantly the heat gauge pegged and the engine shut off. I waited until it cool down started and continued, stopping as needed for the car to cool down. I figured the water pump had gone and was the source of the leak because I was overdue for a timing belt change.
All the while after that first overheat I immediately turned on my heater turn the heat up all the way and fan on high but no heat.
I did the timing belt flawlessly, timed perfectly and sounded great. The oil looked good and continues to look good.
I filled coolant, did a bunch of other fixes that had cropped up getting it ready for sale, test drove and it overheated. Pulled thermostat, worked perfectly, read up on replacing the heater core, saw it was a huge job, so I bypassed the core to see if that was the source of the problem. Still overheats. I looked, checked for leaks, but nothing. The coolant, well plain water as it was in the garage, leaked all the hell over but I couldn't tell where. The bottle would fill with boiling water, and coolant for that matter. It would always smoke on the passenger side so I thought it was a fitting, but I smelled exhaust coming from inside the bottle, Long story short.
No heat, clean oil, I mean for the amount of water I used that crankcase should have been swimming, heater core cut out of the loop, thermostat working properly. What's left? A cracked cylinder head is my guess, probably on that first climb before I turned on the heat so I really don't know how long the heat was out. I know I used it previously during the few times I drove it in the winter.. I hate to see it go, because I wasn't attentive, but that's where I'm at. Owed it 16-17 years, 205k miles, lots of memories. I was going to get rid of it and already sunk a few hundred into it. I still have the tools but unless a cheap head materializes, I may just donate it. Is the something I missed? The oil being clean is my one glimmer.
The next week, As I drove down to the airport on my way over mountain passes my car overheated and I immediately pulled to the side of the road.
Instantly the heat gauge pegged and the engine shut off. I waited until it cool down started and continued, stopping as needed for the car to cool down. I figured the water pump had gone and was the source of the leak because I was overdue for a timing belt change.
All the while after that first overheat I immediately turned on my heater turn the heat up all the way and fan on high but no heat.
I did the timing belt flawlessly, timed perfectly and sounded great. The oil looked good and continues to look good.
I filled coolant, did a bunch of other fixes that had cropped up getting it ready for sale, test drove and it overheated. Pulled thermostat, worked perfectly, read up on replacing the heater core, saw it was a huge job, so I bypassed the core to see if that was the source of the problem. Still overheats. I looked, checked for leaks, but nothing. The coolant, well plain water as it was in the garage, leaked all the hell over but I couldn't tell where. The bottle would fill with boiling water, and coolant for that matter. It would always smoke on the passenger side so I thought it was a fitting, but I smelled exhaust coming from inside the bottle, Long story short.
No heat, clean oil, I mean for the amount of water I used that crankcase should have been swimming, heater core cut out of the loop, thermostat working properly. What's left? A cracked cylinder head is my guess, probably on that first climb before I turned on the heat so I really don't know how long the heat was out. I know I used it previously during the few times I drove it in the winter.. I hate to see it go, because I wasn't attentive, but that's where I'm at. Owed it 16-17 years, 205k miles, lots of memories. I was going to get rid of it and already sunk a few hundred into it. I still have the tools but unless a cheap head materializes, I may just donate it. Is the something I missed? The oil being clean is my one glimmer.
Perplexed
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