Overheating Issue!!! Need Help

9848mustanggt · January 3rd, 2012, 10:13 AM

hi everyone thanks in advance for any help!!! i have a fully built 98 gt.. car is overheating when either running it at idle to long or if getting on it or if just cruising. some details are d1sc procharger 12lbs of boost,3 core intercooler, pi swap, shm cams, dss racing block, forged bottom end, edelbrock manifold and hi flow water pump, fluidyne radiator, full exhaust. the fan is hardwired to run on high at all times and is working fine, coolant system is in mint condition, have beat my head against the wall trying to figure this out.. also when trying to use the ac its even worse!!! have gone through that system as well and it is perfect!!! any help would be very appreciated!!! thanks guys! great forum!!!

1996 GT · January 3rd, 2012, 11:12 AM

I'm going to start with the obvious, how much coolant is left in your tank?

Blower Head · January 3rd, 2012, 11:53 AM

Are you going by the gauge, or do you have some other indicators? If you are going by the gauge you need to check by installing a mechanical gauge or using an Ir thermometer.

97S281 · January 3rd, 2012, 12:30 PM

Start at the begining, how's your thermostat working?

9848mustanggt · January 3rd, 2012, 12:59 PM

the coolant jug is full, never gets low. the gauge is right on i have checked with ir and with a mechanical as well as with my snap on scanner, all are within a couple of degrees. t stat is opening properly

p4ndiamond · January 3rd, 2012, 01:19 PM

Check the thermostat . Check the coolant level. Also you may need to change the low speed fan setting in your tune. I had this issue and i set it to come on at 185 on a 192 thermostat. it stays between 190-194 at all times. Also look into a mark VIII fan .

97S281 · January 3rd, 2012, 01:30 PM

did it start running hot recently or has it been that way since you bought it? It seems you have made alot of upgrades to the cooling system already.

9848mustanggt · January 3rd, 2012, 01:45 PM

i did check the t stat and the fan is hard wired to run on high at all times..

9848mustanggt · January 3rd, 2012, 01:47 PM

it has run hot ever since the procharger was installed and tuned.. i had the shop go back over the tune and they are saying it is correct and should not be affecting the temp..

p4ndiamond · January 3rd, 2012, 04:07 PM

hows the oil pressure.

9848mustanggt · January 3rd, 2012, 05:11 PM

oil pressure is in spec, checked with my gauge and a mechanical gauge

97S281 · January 3rd, 2012, 06:13 PM

Are you going by the stock guage or an aftermarket? Are there any other symptoms of the car overheating or is it just on the guage?

The reason I ask is the stock guages are not very accurate. Most people who see overheating problems on the guage but don't have any actual symptoms find they really don't have a problem at all once they put in a aftermarket temp guage.

The 96' cars all had actual cooling problems but Ford corrected the problem for 97+

9848mustanggt · January 4th, 2012, 08:54 AM

yes i have checked with a ir temp gun and my snap on scanner. temp is getting to hot

97S281 · January 4th, 2012, 09:44 AM

Well I see why you are stumped then. Looks like you have covered all the bases and are still having problems. Unless your high flow water pump is screwing up or your new radiator isnt flowing right I dont understand why your having problems either.

Tang Stang · January 4th, 2012, 09:54 AM

What temps are you actually seeing?

9848mustanggt · January 4th, 2012, 10:20 AM

yeah it is crazy, i have tested the radiator and the cooling system and it all checks out. have very good flow

9848mustanggt · January 4th, 2012, 10:22 AM

its been awhile since i checked it, i havent driven it much, but if memory serves it was getting up to 230 and still rising

9848mustanggt · January 4th, 2012, 10:23 AM

i am leaning towards the procharger creating to much heat, have seen alot of people who have the same issues

Ruffellbaker · January 4th, 2012, 10:31 AM

Did you flush your coolant whenever the Procharger was installed? Theres a chance that you might have an air pocket somewhere.

Tang Stang · January 4th, 2012, 10:36 AM

What have you done to verify that the tstat is opening properly?

January 3rd, 2012, 10:13 AM	#1
9848mustanggt Newbie 1998 mustang gt 0.00 Join Date: Jan 2012 Location: texas Posts: 12 iTrader: 0 reviews	Overheating Issue!!! Need Help hi everyone thanks in advance for any help!!! i have a fully built 98 gt.. car is overheating when either running it at idle to long or if getting on it or if just cruising. some details are d1sc procharger 12lbs of boost,3 core intercooler, pi swap, shm cams, dss racing block, forged bottom end, edelbrock manifold and hi flow water pump, fluidyne radiator, full exhaust. the fan is hardwired to run on high at all times and is working fine, coolant system is in mint condition, have beat my head against the wall trying to figure this out.. also when trying to use the ac its even worse!!! have gone through that system as well and it is perfect!!! any help would be very appreciated!!! thanks guys! great forum!!!

January 3rd, 2012, 11:53 AM	#3
Blower Head Regular 1996 Mustang GT Vert Join Date: Oct 2007 Location: blaine, MN Posts: 270 iTrader: 1 reviews	Are you going by the gauge, or do you have some other indicators? If you are going by the gauge you need to check by installing a mechanical gauge or using an Ir thermometer. __________________ 96 GT vert, Aftercooled Vortech, Lightning MAF,42# injectors, saleen cams, Bullitt intake, tune by Hitech, Magnaflow catback and O/R xpipe, Cobra brake upgrade, lowered bilstein suspension w/MM c/c plates and subframe connectors 3000 stall and 3.73's

January 3rd, 2012, 12:30 PM	#4
97S281 Rollin' 18/ pushin' 2 1997 Saleen S281 Join Date: Feb 2007 Location: The lost highway Posts: 6,673 iTrader: 13 reviews	Start at the begining, how's your thermostat working? __________________ MODS IN GARAGE NCMM ORIGINAL BLOWN 96-98 CREW MEMBER # 1

January 3rd, 2012, 12:59 PM	#5
9848mustanggt Newbie 1998 mustang gt 0.00 Join Date: Jan 2012 Location: texas Posts: 12 iTrader: 0 reviews	overheating issue the coolant jug is full, never gets low. the gauge is right on i have checked with ir and with a mechanical as well as with my snap on scanner, all are within a couple of degrees. t stat is opening properly

January 3rd, 2012, 01:19 PM	#6
p4ndiamond Hardcore Enthusiast 1997 Pacific Green Cobra 14.80 No traction Join Date: May 2010 Location: New Orleans Posts: 1,216 iTrader: 0 reviews	Check the thermostat . Check the coolant level. Also you may need to change the low speed fan setting in your tune. I had this issue and i set it to come on at 185 on a 192 thermostat. it stays between 190-194 at all times. Also look into a mark VIII fan . __________________ GT ENGINE (temporary) 4.30 Gears , 31 spline Moser axles , Detroit tru Trac diff, Jmod 4r70w , Pi intake Hitech stage 2 cam, Vortech V2 3.33 pulley. Alum drive shaft. Lowering kit x2 ball joints ,screamin demon coils, LCA "

January 3rd, 2012, 11:12 AM	#2
1996 GT Traction...? 1996 GT/ 2008 GT Vert Join Date: Nov 2010 Location: Canada Posts: 2,207 iTrader: 0 reviews	I'm going to start with the obvious, how much coolant is left in your tank?

January 3rd, 2012, 01:30 PM	#7
97S281 Rollin' 18/ pushin' 2 1997 Saleen S281 Join Date: Feb 2007 Location: The lost highway Posts: 6,673 iTrader: 13 reviews	did it start running hot recently or has it been that way since you bought it? It seems you have made alot of upgrades to the cooling system already. __________________ MODS IN GARAGE NCMM ORIGINAL BLOWN 96-98 CREW MEMBER # 1

January 3rd, 2012, 01:45 PM	#8
9848mustanggt Newbie 1998 mustang gt 0.00 Join Date: Jan 2012 Location: texas Posts: 12 iTrader: 0 reviews	i did check the t stat and the fan is hard wired to run on high at all times..

January 3rd, 2012, 01:47 PM	#9
9848mustanggt Newbie 1998 mustang gt 0.00 Join Date: Jan 2012 Location: texas Posts: 12 iTrader: 0 reviews	it has run hot ever since the procharger was installed and tuned.. i had the shop go back over the tune and they are saying it is correct and should not be affecting the temp..

January 3rd, 2012, 04:07 PM	#10
p4ndiamond Hardcore Enthusiast 1997 Pacific Green Cobra 14.80 No traction Join Date: May 2010 Location: New Orleans Posts: 1,216 iTrader: 0 reviews	hows the oil pressure. __________________ GT ENGINE (temporary) 4.30 Gears , 31 spline Moser axles , Detroit tru Trac diff, Jmod 4r70w , Pi intake Hitech stage 2 cam, Vortech V2 3.33 pulley. Alum drive shaft. Lowering kit x2 ball joints ,screamin demon coils, LCA "

January 3rd, 2012, 05:11 PM	#11
9848mustanggt Newbie 1998 mustang gt 0.00 Join Date: Jan 2012 Location: texas Posts: 12 iTrader: 0 reviews	oil pressure is in spec, checked with my gauge and a mechanical gauge

January 3rd, 2012, 06:13 PM	#12
97S281 Rollin' 18/ pushin' 2 1997 Saleen S281 Join Date: Feb 2007 Location: The lost highway Posts: 6,673 iTrader: 13 reviews	Are you going by the stock guage or an aftermarket? Are there any other symptoms of the car overheating or is it just on the guage? The reason I ask is the stock guages are not very accurate. Most people who see overheating problems on the guage but don't have any actual symptoms find they really don't have a problem at all once they put in a aftermarket temp guage. The 96' cars all had actual cooling problems but Ford corrected the problem for 97+ __________________ MODS IN GARAGE NCMM ORIGINAL BLOWN 96-98 CREW MEMBER # 1

January 4th, 2012, 08:54 AM	#13
9848mustanggt Newbie 1998 mustang gt 0.00 Join Date: Jan 2012 Location: texas Posts: 12 iTrader: 0 reviews	yes i have checked with a ir temp gun and my snap on scanner. temp is getting to hot

January 4th, 2012, 09:44 AM	#14
97S281 Rollin' 18/ pushin' 2 1997 Saleen S281 Join Date: Feb 2007 Location: The lost highway Posts: 6,673 iTrader: 13 reviews	Well I see why you are stumped then. Looks like you have covered all the bases and are still having problems. Unless your high flow water pump is screwing up or your new radiator isnt flowing right I dont understand why your having problems either. __________________ MODS IN GARAGE NCMM ORIGINAL BLOWN 96-98 CREW MEMBER # 1

January 4th, 2012, 09:54 AM	#15
Tang Stang Hardcore Enthusiast 2004 Mustang GT Join Date: Sep 2010 Location: Imperial, MO Posts: 1,961 iTrader: 2 reviews	What temps are you actually seeing? __________________ Rod @ AzzKicker Cars 2004 Ford Mustang GT-The Driver-BBK CAI, PP TB & Inlet, Steeda UD's, SLP LM1, & 3.73's. 1990 Mercury Cougar XR7-The Meth Addict-5.0L DOHC Stroker w/2.1L KB SC. 1995 Ford F150-Mud Toy-5.0L, 4x4, 33's, & Warn 8274 Winch

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January 4th, 2012, 10:20 AM	#16
9848mustanggt Newbie 1998 mustang gt 0.00 Join Date: Jan 2012 Location: texas Posts: 12 iTrader: 0 reviews	yeah it is crazy, i have tested the radiator and the cooling system and it all checks out. have very good flow

January 4th, 2012, 10:22 AM	#17
9848mustanggt Newbie 1998 mustang gt 0.00 Join Date: Jan 2012 Location: texas Posts: 12 iTrader: 0 reviews	its been awhile since i checked it, i havent driven it much, but if memory serves it was getting up to 230 and still rising

January 4th, 2012, 10:23 AM	#18
9848mustanggt Newbie 1998 mustang gt 0.00 Join Date: Jan 2012 Location: texas Posts: 12 iTrader: 0 reviews	i am leaning towards the procharger creating to much heat, have seen alot of people who have the same issues

January 4th, 2012, 10:31 AM	#19
Ruffellbaker Regular 1997 Mustang GT Join Date: May 2010 Location: Hagerstown, MD Posts: 264 iTrader: 0 reviews	Did you flush your coolant whenever the Procharger was installed? Theres a chance that you might have an air pocket somewhere. __________________ PI Cam Swap, MAC C/A intake, BBK 70mm TB, C&L Plenum, Ford 24lb injectors, March UD, 160 T Stat, MSD ignition, 3.73 gears, Stage 2 Clutch, Steeda Short Shifter, O/R X, Flow 40s, SCT Race Tune.

January 4th, 2012, 10:36 AM	#20
Tang Stang Hardcore Enthusiast 2004 Mustang GT Join Date: Sep 2010 Location: Imperial, MO Posts: 1,961 iTrader: 2 reviews	What have you done to verify that the tstat is opening properly? __________________ Rod @ AzzKicker Cars 2004 Ford Mustang GT-The Driver-BBK CAI, PP TB & Inlet, Steeda UD's, SLP LM1, & 3.73's. 1990 Mercury Cougar XR7-The Meth Addict-5.0L DOHC Stroker w/2.1L KB SC. 1995 Ford F150-Mud Toy-5.0L, 4x4, 33's, & Warn 8274 Winch

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Overheating Issue!!! Need Help

Overheating Issue!!! Need Help

overheating issue