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5.0L Talk | 5.0L Tech | 94-95 Tech | 1979-1993   1994   1995   Upload Pictures | Timeslips | Power Adders | Mustang Tech 


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Unread 03-15-2003   #1 (permalink)
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Question Overheating HELP!!!!!!!!!!!!

Hi Ihave A 95 Mustang Gt 5.0 With Following Mods

Flowmaster 2-chambers
bbk cold air intake with k&n filtercharger in the fender
mac underdrive pulleys
ebiach sportline springs
kyb gas adjust shacks and struts
bbk caster chamber plates
aftermarket front gille
chrome upper and lower water pipes
180 thermostat
brand new water pump
new thermostat
radiator replaced less than year ago

OK I pressure tested my radiator and there was small leak at hose so i replacedwith the chrome ones about 6 months ago
overheating so replaced water pump
still over heating replaced thermostat
then temp sensor

every time it worked good for about 2 or 3 days
then it heated up alittle bit
then all of the sudden my radiator fluid was boiling out the overfill tank
i wait till it cools off and half the fluid in radiator is missing but thats from overfllowing

i refill radiator everything is fine for another 3 days

also clicking sound at hig rpms like 4500 and up

yea i push it alot but it over heats when i am not pushing it never when i am dragging

help please

future mods in next 6 months

long tubes
h pipe
msd
rear end gears
rims

any suggestions here to?
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Unread 03-15-2003   #2 (permalink)
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Bad Thermostat maybe.
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'95GT, S Trim, 306, AFR 185's, RPM intake, XE270HR cam, and the rest of the bolt ons.
Best run to date with old combo: 12.2 @ 116mph w/ 1.78 60' on ET Streets.
www.flowtechinduction.com <--- He knows cams!
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Unread 03-15-2003   #3 (permalink)
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does it overheat when you are idling(stop and go) or on the highway(over 30mph)??
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Unread 03-15-2003   #4 (permalink)
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underdrive pullys have been known to slow down accesories too much, (not all, and not always) causing alternators to lose charging abilitys as well as causing over heating because they slow down the waterpump too much, so if all other things fail try putting your stock pullys back on.
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1995 Mustang GT 5.0
BBK CAI, Pro-M 75mm MAF, Pro-M Optimizer, BBK 70mm TB, GT-40 Intake, 24# Injectors, AFR 165's, 1.7 Roller rockers, Crane 2040 cam (E-303) BBK Equal Length headers, BBK O/R X-pipe, Flowmaster American Thunder 2 Chambers. FMS 3.73 Gears, Lentech AODE 2800 stall, BBK 255lph Fuel Pump, BBK Fuel Pressure Regulator. MSD 6AL, Steeda UDP's, FMS Aluminum drive shaft, Autologic chip Larocca tune.
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Unread 03-15-2003   #5 (permalink)
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Just Replaced Thermostat

Was Doing It Every 8 Days B4 Pulleys They Just Made It Happen More Often


Also I Have Fog Lights Behind The Grille And In Front Of The Radiator But I Dont Use Them That Often Only Have Them On For Like 10 Min When I Use them.

Mainly Use Them For Driving On Really Dark Streets


Tonight I Had Everything On

Fog Lights Headlights Heater up to max

and took the cap of the overfill tank and some steam was comming out is it all burning off?

I Painted my fan and reservoir tank red with high temp paint as well as my intake black and valve covers red.
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1995 Mustang GT 5.0 HO
Mods: March Under Drive Pulleys, BBK CAI, MAC Full Length Headers & Hi-Flow H-Pipe With Cats, Flow Master 2 Chambers, BBK Caster/Camber Plates, Ebiach Sportline Springs , KYB Gas Adjust Shocks & struts, K&N Filter Charger, 180 degree thermostat, 3:73 FMS, Catapult Trailing Arms, BBK 255Lbph And Adjustable Regulator, Gripp Subframes, Cobra RR Hood, Red Top Battery, Pro 5.0 Shifter, Zex 75 Shot System, 1/4 Inch Wheel Spacers Rear, M&M 6 Point Cage
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Unread 03-15-2003   #6 (permalink)
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also thermostat was reading little above normal but no where near read line
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1995 Mustang GT 5.0 HO
Mods: March Under Drive Pulleys, BBK CAI, MAC Full Length Headers & Hi-Flow H-Pipe With Cats, Flow Master 2 Chambers, BBK Caster/Camber Plates, Ebiach Sportline Springs , KYB Gas Adjust Shocks & struts, K&N Filter Charger, 180 degree thermostat, 3:73 FMS, Catapult Trailing Arms, BBK 255Lbph And Adjustable Regulator, Gripp Subframes, Cobra RR Hood, Red Top Battery, Pro 5.0 Shifter, Zex 75 Shot System, 1/4 Inch Wheel Spacers Rear, M&M 6 Point Cage
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Unread 03-15-2003   #7 (permalink)
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How was the car running before you put the grill in?
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1995 Mustang GT 5.0
BBK CAI, Pro-M 75mm MAF, Pro-M Optimizer, BBK 70mm TB, GT-40 Intake, 24# Injectors, AFR 165's, 1.7 Roller rockers, Crane 2040 cam (E-303) BBK Equal Length headers, BBK O/R X-pipe, Flowmaster American Thunder 2 Chambers. FMS 3.73 Gears, Lentech AODE 2800 stall, BBK 255lph Fuel Pump, BBK Fuel Pressure Regulator. MSD 6AL, Steeda UDP's, FMS Aluminum drive shaft, Autologic chip Larocca tune.
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Unread 03-15-2003   #8 (permalink)
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it ran fine but the grille was on there for 2 months b4 i started having heating problems and the fog lights for a month

i guess it started happing after i painted everyting i painted the fan blades and shroud and the reservoir tank but that still dosnt give it reason to over heat like it is
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1995 Mustang GT 5.0 HO
Mods: March Under Drive Pulleys, BBK CAI, MAC Full Length Headers & Hi-Flow H-Pipe With Cats, Flow Master 2 Chambers, BBK Caster/Camber Plates, Ebiach Sportline Springs , KYB Gas Adjust Shocks & struts, K&N Filter Charger, 180 degree thermostat, 3:73 FMS, Catapult Trailing Arms, BBK 255Lbph And Adjustable Regulator, Gripp Subframes, Cobra RR Hood, Red Top Battery, Pro 5.0 Shifter, Zex 75 Shot System, 1/4 Inch Wheel Spacers Rear, M&M 6 Point Cage
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Unread 03-15-2003   #9 (permalink)
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I have heard of the temperature rising on our cars (while standing still) with the addition of a grill, have a you considered removing the grill and fogs just to see if it makes any diffrence?
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1995 Mustang GT 5.0
BBK CAI, Pro-M 75mm MAF, Pro-M Optimizer, BBK 70mm TB, GT-40 Intake, 24# Injectors, AFR 165's, 1.7 Roller rockers, Crane 2040 cam (E-303) BBK Equal Length headers, BBK O/R X-pipe, Flowmaster American Thunder 2 Chambers. FMS 3.73 Gears, Lentech AODE 2800 stall, BBK 255lph Fuel Pump, BBK Fuel Pressure Regulator. MSD 6AL, Steeda UDP's, FMS Aluminum drive shaft, Autologic chip Larocca tune.
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Unread 03-16-2003   #10 (permalink)
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i dont really wanna remove the grille and fogs

but i guess i could try it i dont think thats it because it ran fine for month or 2 with them on
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Mods: March Under Drive Pulleys, BBK CAI, MAC Full Length Headers & Hi-Flow H-Pipe With Cats, Flow Master 2 Chambers, BBK Caster/Camber Plates, Ebiach Sportline Springs , KYB Gas Adjust Shocks & struts, K&N Filter Charger, 180 degree thermostat, 3:73 FMS, Catapult Trailing Arms, BBK 255Lbph And Adjustable Regulator, Gripp Subframes, Cobra RR Hood, Red Top Battery, Pro 5.0 Shifter, Zex 75 Shot System, 1/4 Inch Wheel Spacers Rear, M&M 6 Point Cage
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Unread 03-16-2003   #11 (permalink)
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its. your grill and fog lights. you need air flow to your radiator to cool it down, and if there is ANYTHING in the way it will start to overheat thats what i would put my money on. the under drives dont harm cooling, dont worry about those.
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Unread 03-16-2003   #12 (permalink)
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Hey wierd Thing Happened I Was Refilling The Radiator And Filled It To About One Inch Below the cap.

Started Up Went about 3-5 miles overheating red-line smoke commming out the hood went home left engine on poped the hood smoking and what ever then coolent low came on poured water into the reservoir tank till light went off. left it running stopped smoking temp came down to alittle above normal and stayed there turned everything on and i mean everything lights fogs heater reved it up temp didnt move

drove 20 miles and back home temp stayed around normal

what happened ?
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1995 Mustang GT 5.0 HO
Mods: March Under Drive Pulleys, BBK CAI, MAC Full Length Headers & Hi-Flow H-Pipe With Cats, Flow Master 2 Chambers, BBK Caster/Camber Plates, Ebiach Sportline Springs , KYB Gas Adjust Shocks & struts, K&N Filter Charger, 180 degree thermostat, 3:73 FMS, Catapult Trailing Arms, BBK 255Lbph And Adjustable Regulator, Gripp Subframes, Cobra RR Hood, Red Top Battery, Pro 5.0 Shifter, Zex 75 Shot System, 1/4 Inch Wheel Spacers Rear, M&M 6 Point Cage
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Unread 03-16-2003   #13 (permalink)
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Actually spyder there have been alot of cases of underdrives causing overheating, especaily while sitting idle at traffic lights, because not all companys underdrive to the same specs. (pays to go for the better companys) It was even mentioned in a 5.0 issue 'couple of months ago.

It might not be 95mustang's problem but if all else fails its one more thing that can be taken off the list.
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1995 Mustang GT 5.0
BBK CAI, Pro-M 75mm MAF, Pro-M Optimizer, BBK 70mm TB, GT-40 Intake, 24# Injectors, AFR 165's, 1.7 Roller rockers, Crane 2040 cam (E-303) BBK Equal Length headers, BBK O/R X-pipe, Flowmaster American Thunder 2 Chambers. FMS 3.73 Gears, Lentech AODE 2800 stall, BBK 255lph Fuel Pump, BBK Fuel Pressure Regulator. MSD 6AL, Steeda UDP's, FMS Aluminum drive shaft, Autologic chip Larocca tune.
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Unread 03-16-2003   #14 (permalink)
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Usually the big issue with that much water overflowing from the radiator, is a head gasket leak. Nothing else in the car will push that amount of water out of the resevoir.
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Unread 03-16-2003   #15 (permalink)
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nestle has a damn good point.
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1995 Mustang GT 5.0
BBK CAI, Pro-M 75mm MAF, Pro-M Optimizer, BBK 70mm TB, GT-40 Intake, 24# Injectors, AFR 165's, 1.7 Roller rockers, Crane 2040 cam (E-303) BBK Equal Length headers, BBK O/R X-pipe, Flowmaster American Thunder 2 Chambers. FMS 3.73 Gears, Lentech AODE 2800 stall, BBK 255lph Fuel Pump, BBK Fuel Pressure Regulator. MSD 6AL, Steeda UDP's, FMS Aluminum drive shaft, Autologic chip Larocca tune.
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