SOURCE: Leaking Heater core
not much more you can do but replace the heater core
do NOT use stop leak... it may stop the leak but it will plug up the heater core and other small passages needed for cooling the motor as well.
Robert
SOURCE: wHEEL ALIGNMENT 1999 BUICK REGAL LS
Easy Way to check and KNOW for yourself --- Look Under rear at Where wheels Connect see if it has a TIE ROD and See If it has struts of Shocks TIE RODS & OR Struts Take Alighnment Shocks do not
---------------Need more Info Hollar at me rejakwilson
SOURCE: ENGINE IDLES ROUGH, BUT RUNS FINE WHILE DRIVING
Check all vacuum lines for leaks. Check spark plug wires for and spark plugs that may be worn and causing idle misfire.
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