cooling problems

mickchu · June 13th, 2008, 02:22 PM

My car is a 1995 V6 manual. On running in heavy trafic without my AC on the water temperature will red-line. If I put the AC on it is OK. I checked under the hood and the fan comes on when it gets to temperature but will switch off when it gets hot. This fan does come on when the AC is put on. I did have to replace my computer for another problem but my cooling problem is still there. Any ideas?

Baker02125 · June 13th, 2008, 03:17 PM

check your oil you may be low, check your coolant and you may need a new thermostat heres a good link

180 Degree Thermostat in a 3.8L V6 Mustang

BostonPerformance · June 13th, 2008, 09:33 PM

+1 on the thermostat. I put a 180 in mine as soon as i got it, and now the dial stays on "c"

mickchu · June 14th, 2008, 09:03 AM

checked the oil many times. Put at least two new thermostats.

94v6blkndred · June 14th, 2008, 11:11 AM

check your ECT/CTS.....sensor could be messin up so your THINKING your car is overheating and cooling funny but it may be perfectly fine...

mickchu · June 15th, 2008, 09:38 AM

I have a secondary water temperature sensor and an oil temperature senser. They both says that I am overheating.

HMUSN · June 15th, 2008, 09:40 AM

you would be better off running your heater fan than your AC fan to cool it.

stephen · June 15th, 2008, 01:22 PM

Originally Posted by mickchu

My car is a 1995 V6 manual. On running in heavy trafic without my AC on the water temperature will red-line. If I put the AC on it is OK. I checked under the hood and the fan comes on when it gets to temperature but will switch off when it gets hot. This fan does come on when the AC is put on. I did have to replace my computer for another problem but my cooling problem is still there. Any ideas?

Sounds like the fan control circuit is the problem. It is overheating in traffic because the fan isn't coming on. The A/C makes the fan run. You need to find out why the fan doesn't come on with the engine hot but A/C off.

June 13th, 2008, 02:22 PM	#1
mickchu Newbie Join Date: Jun 2006 Posts: 11 iTrader: 0 reviews	cooling problems My car is a 1995 V6 manual. On running in heavy trafic without my AC on the water temperature will red-line. If I put the AC on it is OK. I checked under the hood and the fan comes on when it gets to temperature but will switch off when it gets hot. This fan does come on when the AC is put on. I did have to replace my computer for another problem but my cooling problem is still there. Any ideas?

June 14th, 2008, 11:11 AM	#5
94v6blkndred Hardcore Enthusiast 02 Turboed Saleen Clone faster than my v6 Join Date: Mar 2007 Location: Houston, TX Posts: 1,604 iTrader: 0 reviews	check your ECT/CTS.....sensor could be messin up so your THINKING your car is overheating and cooling funny but it may be perfectly fine... __________________ 94v6.CAI,Exhaust,3:73s-needs rear end rebuild 02GT/Saleen.built motor,62mm turbo 412hp/446tq @10psi,stock TB and intake

June 15th, 2008, 09:40 AM	#7
HMUSN Doc 1986 SVO 48.47@ 12.58 Join Date: Nov 2006 Posts: 37,050 iTrader: 11 reviews	you would be better off running your heater fan than your AC fan to cool it. __________________

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June 13th, 2008, 03:17 PM	#2
Baker02125 Enthusiast 2000 Mustang Join Date: Nov 2007 Location: New Hampshire Posts: 506 iTrader: 1 reviews	check your oil you may be low, check your coolant and you may need a new thermostat heres a good link 180 Degree Thermostat in a 3.8L V6 Mustang

June 13th, 2008, 09:33 PM	#3
BostonPerformance Enthusiast 99 Cherokee sport/87 5.0 not tested Join Date: Jun 2008 Location: san antonio, tx Posts: 987 iTrader: 0 reviews	+1 on the thermostat. I put a 180 in mine as soon as i got it, and now the dial stays on "c"

June 14th, 2008, 09:03 AM	#4
mickchu Newbie Join Date: Jun 2006 Posts: 11 iTrader: 0 reviews	checked the oil many times. Put at least two new thermostats.

June 15th, 2008, 09:38 AM	#6
mickchu Newbie Join Date: Jun 2006 Posts: 11 iTrader: 0 reviews	I have a secondary water temperature sensor and an oil temperature senser. They both says that I am overheating.

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