Temp Running Hot
Thread Starter
4th Gear
Joined: Nov 2017
Posts: 4
Likes: 0
From: Woodbury New York
Temp Running Hot
Quick question: I have a 95 C4 and I love it but as I drive I see the temp gauge go higher and higher to like 240 degrees so what I do is turn on the A/C and then it stays at 200 Anyone know if you have this problem or is it just my car???
Last edited by Paul Neiger; Nov 2, 2017 at 02:55 PM.
Drifting
Joined: Aug 2009
Posts: 1,971
Likes: 243
240 isn't much above the fan turn on temp - you're in the realm of normal for an LT1.
If you want cooler, a pcm reflash to have the fans kick on at a lower temp will likely suffice.
Mine runs mostly around 180 +/- 10 degrees depending on conditions. I have the fans programmed lower, a 160 thermostat (stock is 180), 3 core aluminum radiator, and meziere hd waterpump.
If you want cooler, a pcm reflash to have the fans kick on at a lower temp will likely suffice.
Mine runs mostly around 180 +/- 10 degrees depending on conditions. I have the fans programmed lower, a 160 thermostat (stock is 180), 3 core aluminum radiator, and meziere hd waterpump.
Race Director
Joined: Oct 2008
Posts: 17,982
Likes: 1,074
From: Lansing MI
Instructor
Joined: Mar 2016
Posts: 184
Likes: 57
From: Bowling Green Ohio
2021 C5 of the Year Finalist - Unmodified
2020 C5 of the Year Finalist - Unmodified
I Might try letting the car sit and run w/o the A/C on and make sure the fan comes on around 235-240. I believe that’s the temp it comes on. Also the usual check for debris blocking the radiator. My 92 will stay around 195 at 55mph on a hot day and that’s with no A/C (no fan).
Thread Starter
4th Gear
Joined: Nov 2017
Posts: 4
Likes: 0
From: Woodbury New York
Hot Temp
[QUOTE=Paul Neiger;1595887431]Quick question: I have a 95 C4 and I love it but as I drive I see the temp gauge go higher and higher to like 240 degrees so what I do is turn on the A/C and then it stays at 200 Anyone know if you have this problem or is it just my car???
I checked and radiator all clear. I am just use to the tempature needle always being dead center. But as a drive the Vette, it goes to 3/4 to hot. The only way for me to get the needle lower is by running the A/C. Is thi common on all C4's
I checked and radiator all clear. I am just use to the tempature needle always being dead center. But as a drive the Vette, it goes to 3/4 to hot. The only way for me to get the needle lower is by running the A/C. Is thi common on all C4's
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
2027 Corvette vs The World: Every C8 vs Its Closest Competitor
Joe Kucinski
Melting Slicks
Joined: Oct 2016
Posts: 2,024
Likes: 363
From: Central Alabama
[QUOTE=Paul Neiger;1595890015]
If the 240 is from the analog gauge, what is showing in the digital display with the speedometer?
BTW I thought my radiator was clear until I pulled it and looked through it.
Quick question: I have a 95 C4 and I love it but as I drive I see the temp gauge go higher and higher to like 240 degrees so what I do is turn on the A/C and then it stays at 200 Anyone know if you have this problem or is it just my car???
I checked and radiator all clear. I am just use to the tempature needle always being dead center. But as a drive the Vette, it goes to 3/4 to hot. The only way for me to get the needle lower is by running the A/C. Is thi common on all C4's
I checked and radiator all clear. I am just use to the tempature needle always being dead center. But as a drive the Vette, it goes to 3/4 to hot. The only way for me to get the needle lower is by running the A/C. Is thi common on all C4's
BTW I thought my radiator was clear until I pulled it and looked through it.
Last edited by belairbrian; Nov 2, 2017 at 09:15 PM.
Instructor
Joined: Mar 2016
Posts: 184
Likes: 57
From: Bowling Green Ohio
2021 C5 of the Year Finalist - Unmodified
2020 C5 of the Year Finalist - Unmodified
“If the 240 is from the analog gauge, what is showing in the digital display with the speedometer?”
:thumbs
just what I was wondering
:thumbs
just what I was wondering
Last edited by AJT84; Nov 2, 2017 at 09:54 PM. Reason: Clarity
Thread Starter
4th Gear
Joined: Nov 2017
Posts: 4
Likes: 0
From: Woodbury New York
[QUOTE=belairbrian;1595890035]I'll check again. Radiator seems clear but of course dirt can get inside. On my dash I hit gauges and it seems to be correct as I said when it gets too hot I get nervous and turn on A/C that keeps it in normal range
Le Mans Master
Joined: Oct 2004
Posts: 7,706
Likes: 485
From: Everett WA
C4 of Year Finalist (appearance mods) 2019
If you read the sticky at the top about C4 LT1 temps you will finds it's not running above normal. The temp drop you experience is because on your 95 when you turn on the AC both fans come on and default to the high speed setting. So that does go against the old school that I was taught also.... you don't turn on the AC to lower engine temps but it will have that effect on our cars particular at low speeds.
You need to read up on the method for cleaning out the junk from between the fins of your radiator. Always use the digital temps not the analog. With a clean properly flowing radiator you won;t have to turn on the AC to maintain 195 - 225 in normal driving
You need to read up on the method for cleaning out the junk from between the fins of your radiator. Always use the digital temps not the analog. With a clean properly flowing radiator you won;t have to turn on the AC to maintain 195 - 225 in normal driving