1995 Dodge Grand Caravan Overheating

DODGE CARAVAN
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VEXEDDRIVER
  • MEMBER
  • 1 POST
1995 doge grand caravan 240000 miles. Yesterday i noticed thetemp gauge move up quickly and my check gauges light came on. I drove it home a mile or 2 and watched as it fluctuated. I checked the antifreeze and added a little but the next trip out that day the gauge kept going back and forth from high to mid. That night I let it warm up about 20 minutes before driving and the gauge stayed on hot and never moved back down. Also I noticed that there was no hot air comming from the heater. Is this possibly a thermostat and if so how hard is it to change in this vehicle. There is no noticable smoke comming from the vehicle.
Feb 3, 2007 at 11:32 PM
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MATHIASO
  • ✓Experienced Mechanic
  • 1,209 POSTS
Let's ruine out for a defective temperature gage and focus on overheating problem. No hot air is coming out,that ruine out for a defective temperature gage. It seems like the coolant is prevented from flowing through the cooling system properly. Go to auto parts store,get an haynes repaire manual for 1995 doge grand caravan . follow the procedure for draining the cooling system before removing the thermostat. when the thermostat is removed, test it:


https://images.2carpros.com/forum/automotive_pictures/46384_scan_1.jpg

the thermostat should be open between 180 and 210 degrees fahrenheit.if it does not, replace the thermostat, if it does, move to next step,. check the radiator in which the core passages are block with rust and corrosion. check that out by reverse- flushing the radiator and reverse-flush the engine:


https://images.2carpros.com/forum/automotive_pictures/46384_scan0002_1.jpg


https://images.2carpros.com/forum/automotive_pictures/46384_scan_2.jpg

let us know
Feb 4, 2007 at 2:58 AM

Suggested Repair

Drain the cooling system, remove the thermostat, and test that it opens between 180 and 210 F. Replace it if it does not open. If it tests good, reverse-flush the radiator and engine to clear rust or corrosion blocking coolant flow.

Conversation Summary

The owner of a 1995 Dodge Grand Caravan reported the temperature gauge rising quickly, the check gauges light coming on, and the gauge fluctuating or staying hot, with no heat from the heater and no visible smoke. The expert said the lack of heat indicates a real cooling-flow problem rather than a bad gauge. They advised using a repair manual, draining the cooling system, testing the thermostat, replacing it if it does not open at the specified temperature, and reverse-flushing the radiator and engine if the thermostat tests good.

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