Engine coolant Boiling over after 30 mins of moderate driving. Why?
#1
Senior Member
Thread Starter
Engine coolant Boiling over after 30 mins of moderate driving. Why?
Hey guys,
I have this problem with my 86 TA. Today I drove it around for about 30 mins not pushing it hard at all. The temp was around 90 farenheit and when I pulled into my friends driveway she told me my car was leaking green fluid. I popped the hood and surely most of my engine coolant totally boiled out!!!
My question is what could have caused this? My car has the stock thermostat 195o I think. My guess is that my fan is either broken or my thermostat is broken and is not turning the fan on. Has anybody ever had this problem and what can I do to fix this?
BTW My car was at 260o (in the red zone) when I looked at the engine temp after I stopped. I don't think this is normal.
Somebody please HELP me!!!
-Max
I have this problem with my 86 TA. Today I drove it around for about 30 mins not pushing it hard at all. The temp was around 90 farenheit and when I pulled into my friends driveway she told me my car was leaking green fluid. I popped the hood and surely most of my engine coolant totally boiled out!!!
My question is what could have caused this? My car has the stock thermostat 195o I think. My guess is that my fan is either broken or my thermostat is broken and is not turning the fan on. Has anybody ever had this problem and what can I do to fix this?
BTW My car was at 260o (in the red zone) when I looked at the engine temp after I stopped. I don't think this is normal.
Somebody please HELP me!!!
-Max
#2
Supreme Member
Where did it come out from? You probably just have a leak, the pressure that builds up from the circulation of hot coolant can cause many 'a' hose to pop. It may be a heater hose, in my experience those tend to go out a lot, but they are an easy fix.
#3
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Really sucks when your car pukes in front of women
Anyhow.....there are a few things to check.
1st- Make sure that the airdam under the nose of the car is still there and mounted correctly.
2nd- If you have dual electric cooling fans make sure that they come one. If not suspect a bad relay ($6 at parts store)
3rd- Make sure your timing is set correctly. Sometimes retarded timing or overly advanced timing can make the temp go up.
Last, but not least...it will not hurt to switch to a cooler stat. Get a 160*, 170*, or 180*.
Oh...another thing....get a fan switch that turns the fans on earlier. I rigged my fans so both come on at the same time. My PROM turns them on @ 175* and off @ 160. I wired them together so both come on at the same time. Helped immensely (sp?)
------------------
Mike L.
"If it feels good - stay in it "
1987 IROC Z TPI 350 A4 3.27 Borg-Warner.
Mods: 2300-2500 Stall Converter, Shift Kit(GM parts), TPI Specialties Stage 3 PROM, Modified Airbox w/ K&N's, homemade cold air, Relocated MAT sensor, Gutted MAF, 160* thermostat, Accel 8mm Wires, bypassed TB coolant, Flowmaster 3 chamber single 3" in/out muffler, 3" MAC mandrel intermediate, custom dual !cat Y-pipe. airfoil, ported plenum. !smog
http://www.MichaelLasiuta.home.att.net
**BOYCOTT LAPEER DRAGWAY**
Anyhow.....there are a few things to check.
1st- Make sure that the airdam under the nose of the car is still there and mounted correctly.
2nd- If you have dual electric cooling fans make sure that they come one. If not suspect a bad relay ($6 at parts store)
3rd- Make sure your timing is set correctly. Sometimes retarded timing or overly advanced timing can make the temp go up.
Last, but not least...it will not hurt to switch to a cooler stat. Get a 160*, 170*, or 180*.
Oh...another thing....get a fan switch that turns the fans on earlier. I rigged my fans so both come on at the same time. My PROM turns them on @ 175* and off @ 160. I wired them together so both come on at the same time. Helped immensely (sp?)
------------------
Mike L.
"If it feels good - stay in it "
1987 IROC Z TPI 350 A4 3.27 Borg-Warner.
Mods: 2300-2500 Stall Converter, Shift Kit(GM parts), TPI Specialties Stage 3 PROM, Modified Airbox w/ K&N's, homemade cold air, Relocated MAT sensor, Gutted MAF, 160* thermostat, Accel 8mm Wires, bypassed TB coolant, Flowmaster 3 chamber single 3" in/out muffler, 3" MAC mandrel intermediate, custom dual !cat Y-pipe. airfoil, ported plenum. !smog
http://www.MichaelLasiuta.home.att.net
**BOYCOTT LAPEER DRAGWAY**
#4
Moderator
iTrader: (1)
One more, check between the radiator and AC condensor for debris. I've seen plastic bags and trash get up in there, and prevent airflow thru the radiator.
------------------
1991 Camaro Z28
5.7L 5-Speed (originally 305)
13.23 @ 107.62 MPH
Southern California
Member: SoCal 3rd Gen F-Bodies
Webmaster: SoCal F-Bodies
-=ICON Motorsports=-
------------------
1991 Camaro Z28
5.7L 5-Speed (originally 305)
13.23 @ 107.62 MPH
Southern California
Member: SoCal 3rd Gen F-Bodies
Webmaster: SoCal F-Bodies
-=ICON Motorsports=-
#5
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I second the trash problem. Happened to me once! Car wpuld not cool down for anything, then I looked down there in front of the rad and their was a plastic bag covering the whole thing up. Wasn't getting any air.
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Pics of my Car
http://albums.photopoint.com/j/View?...781&p=39417549
http://albums.photopoint.com/j/View?...781&p=39417539
http://albums.photopoint.com/j/View?...781&p=29492902
http://albums.photopoint.com/j/View?...781&p=29492901
305TBI, EDL strut tower brace w/spohn SFC's on the way and wonderbar, ASCD big block hood,
Eibach Sportline Springs,
Koni Struts and Shocks,
SSPE lower control arms and Panhard bar,
Hellwig Rear Swaybar and Energy Suspension bushings.Aluminum Driveshaft. Posi-rear
------------------
Pics of my Car
http://albums.photopoint.com/j/View?...781&p=39417549
http://albums.photopoint.com/j/View?...781&p=39417539
http://albums.photopoint.com/j/View?...781&p=29492902
http://albums.photopoint.com/j/View?...781&p=29492901
305TBI, EDL strut tower brace w/spohn SFC's on the way and wonderbar, ASCD big block hood,
Eibach Sportline Springs,
Koni Struts and Shocks,
SSPE lower control arms and Panhard bar,
Hellwig Rear Swaybar and Energy Suspension bushings.Aluminum Driveshaft. Posi-rear
#6
Senior Member
Thread Starter
Thanks for the replys guys,
I am a complete idiot. I forgot that I took the air dam off the night before to fix it up a little, and it was early in the morining, so I just drove off. No wonder my car was about to explode, it wasn't getting any air at all. Sorry for wasting your time.
-Max
I am a complete idiot. I forgot that I took the air dam off the night before to fix it up a little, and it was early in the morining, so I just drove off. No wonder my car was about to explode, it wasn't getting any air at all. Sorry for wasting your time.
-Max
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