over heating at idle.
Advanced
Joined: Jul 2012
Posts: 83
Likes: 0
You can flame me for this comment if you like, but I have to ask is the overheating actually showing up as fluid flowing into the reservoir?
Or, are you referencing the analog gauge? That gauge is notoriously high. My cluster actually has a sticker stating they aren't 100% accurate.
After i purchased my '92 this past summer, I had to run it through emissions. It was idling in a garage in 104 degree ambient weather during the test and the tech looked at the cluster and freaked out because the gauge was reading so high (~240 degrees). I freaked out a bit too, for a moment, but we cycled the LCD display to see that the temp was actually only 220. A few moments later, I believe at 228, the fans came on and it cooled down.
Or, are you referencing the analog gauge? That gauge is notoriously high. My cluster actually has a sticker stating they aren't 100% accurate.
After i purchased my '92 this past summer, I had to run it through emissions. It was idling in a garage in 104 degree ambient weather during the test and the tech looked at the cluster and freaked out because the gauge was reading so high (~240 degrees). I freaked out a bit too, for a moment, but we cycled the LCD display to see that the temp was actually only 220. A few moments later, I believe at 228, the fans came on and it cooled down.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
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
Melting Slicks
Joined: Aug 2008
Posts: 2,082
Likes: 50
From: Palmdale CA
Melting Slicks
Joined: Aug 2008
Posts: 2,082
Likes: 50
From: Palmdale CA
Digital or Analog...make sure you specify this. If it's the Digital gauge Your running hotter then usual, this could be many things..of course the first place to start, is make sure the Cavity between the A/C coil and radiator is Clean. Inspect this area closely and report back.
Thread Starter
Intermediate
Joined: Nov 2011
Posts: 29
Likes: 0
Sorry it took awhile to reply. It is clean between the raiator and ac condenser.
It gets to where both digital and the tac guage both read up to 250 deg. And now its not just at idle and it shuts down randomly when sitting still.
It gets to where both digital and the tac guage both read up to 250 deg. And now its not just at idle and it shuts down randomly when sitting still.
Le Mans Master
Joined: Jan 2006
Posts: 5,621
Likes: 206
From: Orlando FL
This time of year the left fan should cycle on and off and the temperature should go from 219-228 (at idle). If you are hitting 230 and the right hand fan comes on and the temp does not come down, there is something wrong.
I would take some of the guess work out and install a "LT1" thermostat. Give it a flush while you are at it.
After that if it is not better, I would get the radiator cleaned out. (Or put a bigger, better one in).
I would take some of the guess work out and install a "LT1" thermostat. Give it a flush while you are at it.
After that if it is not better, I would get the radiator cleaned out. (Or put a bigger, better one in).
Team Owner
Joined: Oct 2004
Posts: 81,241
Likes: 3,063
From: altered state
St. Jude Donor '05
If its been more than 2 yrs since the radiator was pulled do it
(Sounds like your thermostat is opening check the cap to make sure its good, too or replace they are cheap.)
Then taking a high pressure water hose blast all the fins from the backside forwards over and over til, when you hold it up to light you see its clear. Cleaning between the rad. and the condenser is only the beginning.
Night and day difference.
(Sounds like your thermostat is opening check the cap to make sure its good, too or replace they are cheap.)
Then taking a high pressure water hose blast all the fins from the backside forwards over and over til, when you hold it up to light you see its clear. Cleaning between the rad. and the condenser is only the beginning.
Night and day difference.
Drifting
Joined: Sep 2003
Posts: 1,363
Likes: 7
From: 1994 LT1 Coupe 6-speed with FX3 & 2000 LS1 Vert 6-Speed with F45 Hunterdon County, NJ
Per digital dash temp gauge, driver side fan on at 228, off at 218 -- passenger side fan on at 235, off at 225ish.
AC on should kick on driver side fan regardless of coolant temp and if hot out, also the passenger side fan (trick to keep car cool, turn on AC).
I just put a new stock (delphi) radiator in my 94, and in garage, once the fan kicks on, it comes down from 228 to 218 pretty quick (minutes) -- and while driving -- drops from 228 to 194 in about 1 mile now (used to take 5+ miles). so clogged radiator fins really do make a difference.
Lastly, if analog gauge is move than 10 degrees different than digital, could indicate a bad/wrong thermostat.
Thread Starter
Intermediate
Joined: Nov 2011
Posts: 29
Likes: 0
Well. I replaced the thermostat. And it still dies out if no where.. (once 5 mins of starting it up sitting still, once going 40mph it cutout and back on after 1 mile, and check engine light wont go off so i took it to o rileys as soon as they hooked up their cpu to it the light went off and read nothing, they took it off and light came right back on, exiting it died and had to wait 30 seconds. And drove it a little over a mile back home)
Oh.. and it still gets to 230 deg. (On both gauges)
Anyone might think it could be electrical problems??
Oh.. and it still gets to 230 deg. (On both gauges)
Anyone might think it could be electrical problems??