why am i running hot
Race Director
Joined: Oct 2005
Posts: 11,773
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From: Rolla Missouri
2021 C4 of the Year - Unmodified Finalist
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Heel & Toe
Joined: Jun 2008
Posts: 22
Likes: 0
From: Kansas City MO
I'm in the same boat. I have a 94 coupe. I put a water pump on it the day I bought it, 2 years ago. It's been hot this week, 101 yesterday. The car will melt itself down (240+) with the air on after a 35 minute drive. It climbs a degree or two at a time. When it overheats, it spews coolant out of the radiator cap.
I drove home today (90 degrees outside) with the air off. It never reached more than 205 (30 minute drive on the highway). As soon as I get off the highway, the temp starts to climib. 5 minutes off the highway and it's 230+. I'm guessing that's because they fans don't kick on until 229.
I'm resigned to just saying I can't drive my car, in this heat, with the air on.
I drove home today (90 degrees outside) with the air off. It never reached more than 205 (30 minute drive on the highway). As soon as I get off the highway, the temp starts to climib. 5 minutes off the highway and it's 230+. I'm guessing that's because they fans don't kick on until 229.
I'm resigned to just saying I can't drive my car, in this heat, with the air on.
Race Director
Joined: Jan 2002
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From: O'Fallon Missouri
Safety Car
Joined: Feb 2000
Posts: 3,771
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From: MANDEVILLE, LA La
Definatly...You have a blockage somewhere..might get the radiator rodded out.Today in 106F corrected Temp. with A/C on and a 65 mile trip at 70 MPH the temp never got above 182F.(I have a 160 TS) has to be blockage..the fans don't even run at 70 MPH anyway.
Racer
Joined: Jul 2005
Posts: 392
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From: Arlington Texas
Don't the fans run when the AC is on regardless of temperature?
Safety Car
Joined: Feb 2000
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From: MANDEVILLE, LA La
Instructor
Joined: Nov 2006
Posts: 223
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From: barnegat new jersey
i'm in the same boat. I have a 94 coupe. I put a water pump on it the day i bought it, 2 years ago. It's been hot this week, 101 yesterday. The car will melt itself down (240+) with the air on after a 35 minute drive. It climbs a degree or two at a time. When it overheats, it spews coolant out of the radiator cap.
I drove home today (90 degrees outside) with the air off. It never reached more than 205 (30 minute drive on the highway). As soon as i get off the highway, the temp starts to climib. 5 minutes off the highway and it's 230+. I'm guessing that's because they fans don't kick on until 229.
I'm resigned to just saying i can't drive my car, in this heat, with the air on.
I drove home today (90 degrees outside) with the air off. It never reached more than 205 (30 minute drive on the highway). As soon as i get off the highway, the temp starts to climib. 5 minutes off the highway and it's 230+. I'm guessing that's because they fans don't kick on until 229.
I'm resigned to just saying i can't drive my car, in this heat, with the air on.
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Team Owner
Joined: Aug 2005
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From: Riverside County Southern California
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St. Jude Donor '09 thru '20
I didnt read all the posts but, here are my 2 cents.
I have all new mods for cooling the LT engines. I went to Vegas a month ago, it was 107 F, got stuck in traffic and the temp went up to 235 F. I turned the heat on and the temp went down to 216 F.
Its summer, its hot and unless you are driving above 40 MPH the fans only give you the equivalent to 6-10 MPH winds.
I have all new mods for cooling the LT engines. I went to Vegas a month ago, it was 107 F, got stuck in traffic and the temp went up to 235 F. I turned the heat on and the temp went down to 216 F.
Its summer, its hot and unless you are driving above 40 MPH the fans only give you the equivalent to 6-10 MPH winds.
Le Mans Master
Joined: Sep 2006
Posts: 6,050
Likes: 147
From: Phoenix AZ
2021 C4 of the Year - Modified Finalist
DING DING DING!!! you PRESSURE WASHED THE CONDENSER?
you bent over all the fins on the condenser!!!!
look at the condenser with a mirror and a flashlight and or drop a light on the back side of the radiator and stick your head up in the air intake just behind the bumper, and see if you see any light. I bet you blocked your air flow just like closing venetian blinds or shutters.
sounds like it's time for a new condenser...................
you bent over all the fins on the condenser!!!!
look at the condenser with a mirror and a flashlight and or drop a light on the back side of the radiator and stick your head up in the air intake just behind the bumper, and see if you see any light. I bet you blocked your air flow just like closing venetian blinds or shutters.
sounds like it's time for a new condenser...................
Last edited by coupeguy2001; Aug 5, 2010 at 10:52 AM.
Le Mans Master
Joined: Jan 2008
Posts: 6,020
Likes: 5
From: The opposite of there.
DING DING DING!!! you PRESSURE WASHED THE CONDENSER?
you bent over all the fins on the condenser!!!!
look at the condenser with a mirror and a flashlight and or drop a light on the back side of the radiator and stick your head up in the air intake just behind the bumper, and see if you see any light. I bet you blocked your air flow just like closing venetian blinds or shutters.
sounds like it's time for a new condenser...................
you bent over all the fins on the condenser!!!!
look at the condenser with a mirror and a flashlight and or drop a light on the back side of the radiator and stick your head up in the air intake just behind the bumper, and see if you see any light. I bet you blocked your air flow just like closing venetian blinds or shutters.
sounds like it's time for a new condenser...................
I was going to post the same thing.
Thread Starter
Advanced
Joined: Apr 2010
Posts: 96
Likes: 0
Well my problem is fixed...i replaced, fans-radiator-coolant cap-160 thermostat.
i check the ac condencer and the fins looked fine, and the car was tuned by pcmforless so i dont know about the timing. oh and my thermostat is for regular sbc not the lt1, nobody in town had one for atleast 3days.
I also have both fans set up on a key on swtich so that the run when the key is on.
today was 94degree, i sat in trafic with ac on for like 20 and car never got over 225.
i check the ac condencer and the fins looked fine, and the car was tuned by pcmforless so i dont know about the timing. oh and my thermostat is for regular sbc not the lt1, nobody in town had one for atleast 3days.
I also have both fans set up on a key on swtich so that the run when the key is on.
today was 94degree, i sat in trafic with ac on for like 20 and car never got over 225.
Thread Starter
Advanced
Joined: Apr 2010
Posts: 96
Likes: 0
oh and bleeding the system is a big part...i just carried a screw driver with me and started driving...pulled over every few miles and turned on the bleeder screws. this of course was ildleing and burping it for like 30 min in the driveway.
Race Director
Joined: Jan 2002
Posts: 12,263
Likes: 86
From: O'Fallon Missouri
