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03-13-2019, 08:27 PM
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#1 |
 Drives: Black 2018 1SS Camaro M6 Join Date: Nov 2018
Location: Tx
Posts: 29
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Normal Coolant Operating Temperature 2018 SS
What are you guys running when fully warmed up for your coolant temperatures? I'm running an obd2 p3 gauge and driving normal for awhile it runs right at 180 degrees. This seemed to cold to me. I left the car in the driveway idling for like 10 minutes and checked it and it was up to 205????
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03-14-2019, 09:14 AM
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#2 |
         Drives: 2017 2SS, 50th pkg, M6, MRC, NPP Join Date: Jan 2016
Location: Ocean City, NJ
Posts: 3,177
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I have not hooked up scanner, but once warmed my 2SS routinely runs with the digital gauge pegged at the 11:00 hash mark, which I presume is around 200 deg.
If your car gets to 205 while idling then 180 while driving, your thermostat is likely sticking open a bit. 180 doesn't sound too low. But some cars may not enter closed loop mode in the 160 range. This will hurt fuel economy. I may be able to dig up the prerequisites for closed loop from the service manual. |
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03-14-2019, 09:32 AM
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#3 |
 
Drives: 2018 Camaro SS 1LE Join Date: Oct 2018
Location: College Station, TX
Posts: 78
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Mine also sits right at the 200º mark. Also in TX climate.
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03-14-2019, 10:22 AM
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#4 | |
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Drives: '16 Garnet Red 1SS Join Date: Mar 2014
Location: College Station, TX
Posts: 3,450
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Quote:
These cars run up to 210F when the fan kicks on.
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'16 Camaro 1SS
'18 Miata GT Gone: '01 Camaro, '14 Camaro, '90 Miata |
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03-14-2019, 10:39 AM
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#5 |
Drives: 2019 ZL-1 Join Date: Feb 2009
Location: Troy, MI & Naples, FL
Posts: 2,019
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These cars run normally from 180 to 210 which is where they are supposed to run. 180 is not too cold.
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2019 ZL-1 Acquired 4/23/21 at 6300 miles. Riverside Blue, A10, PDR. Traded in 2017 2SS with 6M and 32k miles. Continental Extreme Contact Sports. Now has 10,000 miles...
2012 Yukon XL Denali w/ 6.2 AWD |
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03-14-2019, 11:43 AM
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#6 | |
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Drives: 2017 2SS, 50th pkg, M6, MRC, NPP Join Date: Jan 2016
Location: Ocean City, NJ
Posts: 3,177
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Quote:
Now 180 may well be in GM's "acceptable" range, but I always start to worry when the coolant temperature fluctuates once the car has warmed. The service manual does not specify the exact engine coolant temperature (ECT) for closed loop: DESCRIPTION AND OPERATION > FUEL SYSTEM DESCRIPTION > RUN MODE The run mode has 2 conditions called Open Loop and Closed Loop. When the engine is first started and very close to 14.7:1.the engine speed is above a predetermined RPM, the system begins Open Loop operation. The ECM ignores the signal from the heated oxygen sensor (HO2S). The ECM calculates the air/fuel ratio based on inputs from the engine coolant temperature (ECT), manifold absolute pressure (MAP), mass air flow (MAF), and throttle position sensors. The system stays in Open Loop until meeting the following conditions: The HO2S has varying voltage output, showing that the HO2S is hot enough to operate properly. The ECT sensor is above a specified temperature. A specific amount of time has elapsed after starting the engine. Specific values for the above conditions exist for each different engine, and are stored in the electrically erasable programmable read-only memory (EEPROM). The system begins Closed Loop operation after reaching these values. In Closed Loop, the ECM calculates the air/fuel ratio, injector ON time, based upon the signal from various sensors, but mainly from the HO2S. This allows the air/fuel ratio to stay |
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03-14-2019, 01:45 PM
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#7 |
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Drives: 17 Camaro SS 1LE & 16 Sierra AT CC Join Date: Nov 2016
Location: Norman, OK
Posts: 2,424
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Factory stat is a 190° if my memory is correct. 180°-205° is with in range. I have a custom thermostat housing on mine with the LS3 style 160° and mine stays around 160° to no more than 180° during the hotter summer months.
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2019 Corvette Z06 2LZ A8 - Halltech CAI, AWE non-catted X-pipe, Mamo V2 ported TB 592rwhp, bone stock 566rwhp
2017 Camaro SS 1LE - Procharger D1SC w/ Tial 2" BOV & Race intercooler / ARH full length catless headers / Alky meth injection system - 650rwhp on conservative tune SOLD |
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03-14-2019, 02:26 PM
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#8 |
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Drives: Black 2018 1SS Camaro M6 Join Date: Nov 2018
Location: Tx
Posts: 29
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So 180 may not be out of line...the factory gauge is right around the 11 o'clock position like everyone says. I guess have the digital p3 gauge now just has me thinking more about it. Btw I'm about 40 min from college station like some of you above
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03-14-2019, 04:42 PM
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#9 | |
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Drives: '16 Garnet Red 1SS Join Date: Mar 2014
Location: College Station, TX
Posts: 3,450
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Quote:
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'16 Camaro 1SS
'18 Miata GT Gone: '01 Camaro, '14 Camaro, '90 Miata |
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01-27-2022, 08:27 PM
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#10 |
 
Drives: 2016 Camaro Join Date: Oct 2017
Location: Texas & Uncle Sam's Choice
Posts: 123
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Keep in mind if you run pure E85 the engine will run cooler.
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2024 Chevrolet 3500HD Z71, LTZ, 4x4, 6.6 ltr. L5P long-bed.
2016 Camaro 2SS Six-speed, Hotchkis sway bars, Eibach .750" drop springs, Mamo throttle body, E85, BMR stuff. 2006 Quicksilver 6-speed GTO ERL LS3-430, All-Pro 285cc heads, 262/273 .758/.742 116+3 cam, Sheet-metal Intake, 70lb Siemens injectors, SLP, GMM Ripshifter, QA1 Coil-overs front and rear, nylon suspension bushings, Hotchkis, RPM Trans, SPEC twin clutch, SpinTech, Kooks 1 7/8 -2.0", BMR drive train, Kaaz 3.91, Lingenfelter CAI, Baer brakes, mini-tubs, E85. |
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01-27-2022, 08:38 PM
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#11 |
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2020 Shadow Gray 2SS
Drives: 2020 2SS - A10, NPP, MRC, CAI Join Date: Dec 2019
Location: SoCal
Posts: 3,021
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My 2020 SS runs right here fully warmed up, have never seen it any warmer...
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2020 SGM 2SS - A10, NPP, MRC, Red Calipers, Black Camaro Fender Badge, Footwell Lighting
Added after delivery: - GMP CAI, GMP Black Strut Tower Brace, MRR017 1LE Wheels, SS Armrest, Black Fuel Door, Stainless Sport Pedals, SS Wheel Caps, Black Lugs/Locks, GM Splash Guards, DD Smoked LED Markers, Smoked Rear Reflectors, Mishimoto Catch Can, Xpel PPF - Full Front, SunTek 35% Tint, CeramicPro coating, RST Stainless Brake Lines, Castrol SRF, MSD Super Conductor Wires Left: My "fun" ride. Right: My "work" ride: a Gulfstream G600. One's top speed is 180 Mph, the other, 620 Mph...  |
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01-27-2022, 08:39 PM
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#12 | |
 
Drives: 2023 ZL1 Vert M6 "Sharky" Join Date: Mar 2020
Location: Earth
Posts: 4,032
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Quote:
__________________
2023 Camaro ZL1 Vert TR-6060 Sharkskin "Sharky"
Firecracker Red Wrangler Willys, 3.6L eTorque, 850RE 8 speed automatic, 25W Willys package, Technology Group, Convenience Group (aka $600 garage door opener), Cold weather Group, Trailer Tow and HD electric group with AUX switches, 3 piece black freedom top. |
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01-27-2022, 08:46 PM
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#13 | |
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2020 Shadow Gray 2SS
Drives: 2020 2SS - A10, NPP, MRC, CAI Join Date: Dec 2019
Location: SoCal
Posts: 3,021
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Quote:
__________________
2020 SGM 2SS - A10, NPP, MRC, Red Calipers, Black Camaro Fender Badge, Footwell Lighting
Added after delivery: - GMP CAI, GMP Black Strut Tower Brace, MRR017 1LE Wheels, SS Armrest, Black Fuel Door, Stainless Sport Pedals, SS Wheel Caps, Black Lugs/Locks, GM Splash Guards, DD Smoked LED Markers, Smoked Rear Reflectors, Mishimoto Catch Can, Xpel PPF - Full Front, SunTek 35% Tint, CeramicPro coating, RST Stainless Brake Lines, Castrol SRF, MSD Super Conductor Wires Left: My "fun" ride. Right: My "work" ride: a Gulfstream G600. One's top speed is 180 Mph, the other, 620 Mph... |
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01-27-2022, 09:02 PM
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#14 | |
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Drives: 2023 ZL1 Vert M6 "Sharky" Join Date: Mar 2020
Location: Earth
Posts: 4,032
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Quote:
__________________
2023 Camaro ZL1 Vert TR-6060 Sharkskin "Sharky"
Firecracker Red Wrangler Willys, 3.6L eTorque, 850RE 8 speed automatic, 25W Willys package, Technology Group, Convenience Group (aka $600 garage door opener), Cold weather Group, Trailer Tow and HD electric group with AUX switches, 3 piece black freedom top. |
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