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TXGOOD
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OCT 21, 09:35 AM
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I have a 185 degree thermostat in my 3800 swap and I just finished refilling the coolant system.
I have the modified Fiero filler neck with the heater hose coming off of it.
I have noticed that when I start the engine cold, the temp will rise to just over 220 and then
dive back down when the t-stat opens.
After that it will constantly stay at about 185.
It seems I have just about all of the air out of the system but if the water level is a bit low
would that cause the thermostat to open later than it is suppose to thus the big heat up
right at first?
Thanks
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Dennis LaGrua
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OCT 21, 06:44 PM
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Sounds like a defective thermostat. I also run a 185* unit and do not experience that phenomenon. Did you drill a 1/8" hole in the thermostat body to allow all the air to escape? ------------------
" THE BLACK PARALYZER" -87GT 3800SC Series III engine, custom ZZP /Frozen Boost Intercooler setup, 3.4" Pulley, Northstar TB, LS1 MAF, 3" Spintech/Hedman Exhaust, P-log Manifold, Autolite 104's, MSD wires, Custom CAI, 4T65eHD w. custom axles, Champion Radiator, S10 Brake Booster, HP Tuners VCM Suite.
"THE COLUSSUS"
87GT - ALL OUT 3.4L Turbocharged engine, Garrett Hybrid Turbo, MSD ign., modified TH125H
" ON THE LOOSE WITHOUT THE JUICE "
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TXGOOD
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OCT 21, 09:34 PM
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No, no hole.
Before I took it down to get an alignment today I did fill it again although it didn`t need much
and it worked fine.
Thanks for the reply.
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