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Thermostat is going waving up and down during warm-up


Donald91tbird
02-13-2006, 03:12 AM
91 tbird 150k

At first I thought the thermostat wasnt really opening correctly. But since its cold out I gave it a little time to warm up. All of the sudden it starts waving up and down then after a while stays at normal temp. throughout the drive

jmt
02-15-2006, 01:36 PM
My 93 did that, and I noticed that it was low on coolant. You might want to check the raidator, and the holding tank.

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