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Re: 93 GC 4.0 sloshing sound under dash
Check your coolant level first. Could just be low or just have some air in the system. Make sure the coolant tank is at the proper level.
I believe it has the same heater control valve as my '92 Cherokee, so turn the heater control FULL HEAT to make sure the coolant flows through the heater core and gets all the air bubbles out. If you do this for a couple of heat-up & cool-down cycles, the noise may go away.
Take Care,
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Greg A.
2001 Chevy Venture w/some "enhancements" ~ 105K Miles (Dec. 2010)
1992 Jeep Cherokee Laredo, 4.0L, Automatic ~ 155K Miles (Dec 2010)
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