HELP NEEDED Roadie wagon temp

JoshDGray

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Buick Ownership
95 Roadmaster Estate, 93 Century, 85 Regal 5.0, 84 Regal 3.8
First of all I would like to thank you guys, the information I have found here has been invaluable. Now on to my current situation. I have a 95 RMW 265k miles with the tow package. I have owned the car since October and have had no issues other than general wear and tear and have recently done a tune up with the time I have found do the quarantine in my area, which involves the replacement of Optispark, Water pump, plugs, wires ECM, coil, radiator hoses and belts. Since the tune up the cars temp gauge goes into the red after no more than ten (10) minutes of idle or about a half mile of driving. "Hot" light comes on and when I pop hood there is a startling amount of burping and gurgling under the hood while fluid is coming out of my coolant tank. Also the heater never blows hot now. Also Have searched for days but can't seem to find what the temp numbers in the climate control should be for MY car. Have found many others but no one seems to have the same problem. Thanks again and SAVE THE WHALES🐋
 
Start with the heater core. Disconnect the hoses to it and try flushing water through. If it flows very slow or not at all, your heater core is plugged. Dexcool will do that. Use rad flush to clear it by pouring concentrate into the core and letting it sit. Might have to do it a few times.

If you heater core is plugged, your rad is probably plugged too. Use concentrated rad flush on it too.

I had the same problem as you. After flushing the temp was a rock steady 177.

Good luck!
 
Also, be sure to inspect/replace the thermostat and the cap on the overflow tank. The tank/cap has to hold 15-psi for the whole system to work correctly! Been there, done that!
 
Once again I must start off by saying THANK YOU for taking the time to reply. I thought I would update as my Roadie is now running. I did in fact flush the system and replace the cap and thermostat (again). As sheepish as I feel I must admit the root of the problem was simply human error. In my haste to get it running at 2am the morning I installed the water pump I FORGOT to move the coupler from my old pump to my new one. If y'all ever get to East Tennessee or North Georgia let me know and I'll buy you something cold to drink. Thank you again and SAVE THE WHALES 🐋.
 
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