Hi everybody, new here so please bear with me! I have a 1999 Pontiac grand Prix with the 3100 motor. I was going to change the thermostat from the 195 to the 180 but, nobody had or could get the 180. I have talked to people that are running the 180, so I know they make one. Any tips on how to get one? I went ahead and put a new 195 Stant in untill I could get a 180. Now the car heats up when I sit stillfor a couple of minutes, never did that before. Any ideas? When I am running down the road it is reading fine, only have a problem when it is sitting. I did open the bleeder valves on the thermostat houseing and on the water pump, untill I got straight water, no air.
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No parts company I've been to has had anything but a 195 stat for FWD 60V6 cars. You have to ask for a F-body 60V6 t-stat. I asked for a Camaro 3.1 180 stat and it works great in my Cutlass Supreme.\'90 Cutlass Supreme SL coupe - 3.1L LH0 V6/HM 4T60 -- every factory option
Flowmaster 40 - no cat // K&N FilterCharger // KYB GR-2\'s // Stant 180º SuperStat
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Originally posted by TheProfessorif the 3100 and 3.1 stats are the same you could also get a stcok stat for and LD9 2.4TC they are 180 and fit in a 3.1\'90 Cutlass Supreme SL coupe - 3.1L LH0 V6/HM 4T60 -- every factory option
Flowmaster 40 - no cat // K&N FilterCharger // KYB GR-2\'s // Stant 180º SuperStat
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My guess would be the number or valves per cylinder for intake and exhaust. Single valve = pushrod; Double valve = OHC with 4 valves per cyl. That's just a guess though.\'90 Cutlass Supreme SL coupe - 3.1L LH0 V6/HM 4T60 -- every factory option
Flowmaster 40 - no cat // K&N FilterCharger // KYB GR-2\'s // Stant 180º SuperStat
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