It seems that my alternator had been going out for awhile without my knowledge.
I drove all over town today with the AC blasting and zero overheating. This last weekend the alternator died and the battery with it.Īn unexpected fix that came with the new alternator was the overheating stopped. I may have stumbled on a fix and it may apply to your van as well. I was at a loss for where to go with it and was dreading the summer heat. The fans were working and coming on at the right intervals. It would really jump in heat at stoplights. My van would overheat on any trip longer than 20 minutes and would overheat faster if I used the AC. I had the thermostat replaced and the radiator flushed and it did nothing. I have been having the same problems with my 03 Venture. I hope this helps…I’m really sure that if I can get the radiator fan working, the overheating should stop now…but that’s because, at heart, I am an optimist…lol! It took about 20 minutes to overheat…half the time it was idling in our driveway with no overheating, but then I took it on the streets, and it slowly started to run warm and then eventually overheat. Today I drove it until it overheated…staying close to home, so no freeway. It ran warm but did not overheat…but the trip was like only 5 minutes in each direction. Since then, I only ran it one other time before today to take a short trip to the store in the evening. I parked it for about 10 minutes while I ran inside a store, and when I restarted the engine, the air conditioner was not blowing cold, and the engine started to run warm then overheat…that is when I switched on the heater so I could limp back home. The overheating occurs when the car is driven for extended durations…except for just after I replaced the hose clamps on the S-shaped hose on the front of the engine…I drove it for 20 minutes on the freeway, and it was doing just fine with the air conditioner blasting. Thanks for the quick reply gsragtop! The overheating issue is compounded by the fact that it has been hot and humid lately, I live in Southern California and at least the humidity is abnormal here. Is this the next logical thing to do? I am tired of chasing this grrrr…Any advice at this point would be appreciated!
#03 chevy venture how to
I have not replaced any relays, fuses or fusible links to the fan, but I imagine the overheating is likely due to the fan not enganging when the coolant temp gets too high.Ĭan someone please tell me how to attack this? I can’t find my multimeter to see if power is getting to the fan motors, but that’s MY problem.
I then read that the radiator fans may not turn on if the AC needs to be charged, so I bought some refrigerant, but found that the system pressure is very high…so no charge needed. So now we get to today…I decided to try to replace the hose clamps on the three prong connector I had replace, with the screw type hose clamps, but it was impossible to remove two of the hoses from this connector, and I only only replaced one of them.
#03 chevy venture full
I was ecstatic…until, after the car had sat for 10 minutes, I started it up, AND THEN it began to overheat…UGH!! I ran the heater full blast in order to get it back home. I took a 20 minute trip on the freeway to the other side of town, on a hot day, and with the air conditioner blasting…the temp gauge did not even get to middle. Noticing that the radiator fans are not turning on, even when the engine coolant in bubbling over in the coolant reservoir, I figured this must be the issue…but I kept Googling for answers, and found someone that said replacing the hose clamps on that short S-shaped hose I replaced at the outset, with worm screw type hose clamps fixed the problem for him, so that’s what I did next…and it seemed to work. Overheating began again after the hot weather spell a few days after replacing the radiator. So I replaced THAT part, and tore up my hands in the process due to the limited space and numerous opportunities for scraping one’s knuckles, only to find that now there was a leak in the radiator. Must have broken off during the thermostat replacement ordeal. After starting the engine to run the flush through the engine, a broken three prong elbow connector cleat in the upper back of the engine compartment was spewing coolant all over the engine. After this fix lasted for a month, I decided to change the thermostat…what a pain in the arse! After changing the thermostat didn’t fix the problem, I decided to flush the radiator. The first issue was a hole in a short, S-shaped hose that goes from the the air bleed valve on the top of the water pump, to a metal line that goes back to the heater coil…I think. I have been chasing this overheating problem for a couple of months now, and I am thoroughly frustrated.
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