Over heating & starting problems

ruquick · 07-29-2004, 05:52 PM

I have 90GT 5spd. I can drive the car maybe 30 mins. and it starts running hot. If turn my car off it will not start again until it is cooled down, acts like the battery is dead. Could anyone help me out here. If you need more info let me know.

Thanks

Capri306 · 07-29-2004, 07:03 PM

Change your thermostat and replace your starter. Report back when work is completed.

ruquick · 07-29-2004, 07:38 PM

Quote:

Originally posted by Capri306
Change your thermostat and replace your starter. Report back when work is completed.

I have already replaced the thermostat. I'm sure I need to and I will replace my starter when I get my over heating problem fixed. I think the over heating is what caused the starter problem.

mustangII460 · 07-29-2004, 07:56 PM

What changes did you make last before it started?

Since you change the stat, maybe coolant mixture too rich?

How about air pocket. Sometimes it a PITA to get all of the air out. I like to drill two small holes in the stat before I put it in. Stat pointing right direction?

Fan in good shape?

No oil in water, or oil in antifreeze?

Losing water?

Bad cap.

Add water wetter.

lxfiveoh · 07-29-2004, 10:09 PM

Does it overheat:

1) Only in stop-n-go or when just stopped?
* fan clutch

2) Only on the highway?
* radiator, air deflector below front air dam

3) All the time?
radiator, thermostat, radiator cap?

ruquick · 07-29-2004, 10:15 PM

It overheats all the time atleast that is what the gauge shows. I have already replaced the thermostat and the radiator cap.

I bought I mech. temp gauge tonight, will install tomorrow.

lxfiveoh · 07-29-2004, 10:25 PM

I'm starting to lean towards a bad radiator...

GhettoPop · 07-30-2004, 12:22 PM

also note the stock gauge is crap

LX5liter · 07-30-2004, 08:29 PM

Sounds like an air locked coolant system. Try putting the front of the car up on ramps or jackstands so thet the rad cap is higher than the engine. Remove the rad cap and run the engine until its at operating temp, this should release the air pocket.

ruquick · 07-30-2004, 09:00 PM

I have been running the stock temp gauge. Today I installed a mech gauge. I but I have not gotten the car to start.

I replaced the starter and the solenoid just clicked, so I went and bought a solenoid and still nothing. I put a volt meter to the battery and it reads .03 volts so I got my friend to jump it off and it melted his jumper cables. I went and bought a new battery and put it the new battery in and it still won't start. Someone help me please. This is my only car.

lxfiveoh · 07-30-2004, 11:09 PM

How are those battery cables?

They do corrode on the inside sometimes and that really impedes any current from flowing to or from the battery.

ruquick · 07-31-2004, 06:40 PM

Ok I changed the ignition switch and now the car starts and runs fine. The mech. temp gauge reads avg. 220 to 230. Isn't that to hot. Should I try and flush the radiator myself or should I pull it out and take it some where and have it done? or should I try an aftermarket fan like an electric fan?

Thanks

lxfiveoh · 08-01-2004, 08:58 AM

I vote for a NEW radiator.

mustangII460 · 08-01-2004, 11:30 AM

Have you tried to get more air out, or check your coolant mixture?

Check the simple things first. If not, just go ahead and replace the motor, im sure it will fix it.

ruquick · 08-01-2004, 12:04 PM

Quote:

Originally posted by mustangII460
Have you tried to get more air out, or check your coolant mixture?

Check the simple things first. If not, just go ahead and replace the motor, im sure it will fix it.

I'm going to flush the radiator today.

replace the motor? I put that engine in last year.

lxfiveoh · 08-01-2004, 07:20 PM

Quote:

Originally posted by mustangII460
...If not, just go ahead and replace the motor, im sure it will fix it.

Not if the radiator is bad.

ruquick · 08-01-2004, 07:56 PM

Ok say if the radiator is bad and I need to replace it. Where should I get one? I like to keep both of my arms and legs.

Autozone has a 3 row for $160 would that be any good?

lxfiveoh · 08-01-2004, 08:20 PM

If you decide to replace the radiator, a 3 core is probably overkill, but it would work. If you are on a budget, just pick up a stock 2 row replacement.

Good luck,

07-29-2004, 05:52 PM	#1
ruquick Registered Member Join Date: May 2001 Location: houston, tx Posts: 17	Over heating & starting problems I have 90GT 5spd. I can drive the car maybe 30 mins. and it starts running hot. If turn my car off it will not start again until it is cooled down, acts like the battery is dead. Could anyone help me out here. If you need more info let me know. Thanks

07-29-2004, 07:03 PM	#2
Capri306 Moderator Join Date: Sep 1998 Location: Grand Rapids, Michigan, USA Posts: 1,001	Change your thermostat and replace your starter. Report back when work is completed. __________________ Capri306, Moderator The Mustang Works Online 1979 Mercury Capri 1987 5.0L Mustang LX Notchback 1993 5.8L Eddie Bauer Bronco

07-29-2004, 07:56 PM	#4
mustangII460 Factoy Five Roadster Join Date: May 2000 Location: Sevier Co,Tennessee Posts: 1,681	What changes did you make last before it started? Since you change the stat, maybe coolant mixture too rich? How about air pocket. Sometimes it a PITA to get all of the air out. I like to drill two small holes in the stat before I put it in. Stat pointing right direction? Fan in good shape? No oil in water, or oil in antifreeze? Losing water? Bad cap. Add water wetter. __________________ Frank

07-29-2004, 10:09 PM	#5
lxfiveoh Registered Member Join Date: Mar 2002 Location: Miami, FL Posts: 54	Does it overheat: 1) Only in stop-n-go or when just stopped? * fan clutch 2) Only on the highway? * radiator, air deflector below front air dam 3) All the time? radiator, thermostat, radiator cap? __________________ Nelson 1990 Mustang LX 5.0 http://fiveoh.homestead.com

07-29-2004, 10:25 PM	#7
lxfiveoh Registered Member Join Date: Mar 2002 Location: Miami, FL Posts: 54	I'm starting to lean towards a bad radiator... __________________ Nelson 1990 Mustang LX 5.0 http://fiveoh.homestead.com

07-29-2004, 10:15 PM	#6
ruquick Registered Member Join Date: May 2001 Location: houston, tx Posts: 17	It overheats all the time atleast that is what the gauge shows. I have already replaced the thermostat and the radiator cap. I bought I mech. temp gauge tonight, will install tomorrow.

07-30-2004, 12:22 PM	#8
GhettoPop Gimme a Drink! Join Date: Dec 2002 Location: NYC Posts: 694	also note the stock gauge is crap __________________ 1990 GT,stock T-5,K&N w/o air silencer,March underdrives,FMS wires,timing@14*,PA Perf 130amp alt,Steeda Tri-Ax Shifter,Steeda adj quadrant/clutch cable/firewall adj,Centerforce II clutch,o/r x-pipe,Magnaflow SS catback,g-load brace, subframes,Bilstein struts/shocks,Autometer gauges, 136k and running strong!

07-30-2004, 08:29 PM	#9
LX5liter dude5l Join Date: May 2001 Location: Grande Prairie, Alberta, Canada Posts: 603	Sounds like an air locked coolant system. Try putting the front of the car up on ramps or jackstands so thet the rad cap is higher than the engine. Remove the rad cap and run the engine until its at operating temp, this should release the air pocket. __________________ Good luck! Brad R. 1992 L.X. 5.0 coupe MODS: A few little bolt ons New Best time ...11.60 @ 128 mph @ 2000+ ft altitude. Rice Haters Club member #39 Users rides #2542

07-30-2004, 09:00 PM	#10
ruquick Registered Member Join Date: May 2001 Location: houston, tx Posts: 17	I have been running the stock temp gauge. Today I installed a mech gauge. I but I have not gotten the car to start. I replaced the starter and the solenoid just clicked, so I went and bought a solenoid and still nothing. I put a volt meter to the battery and it reads .03 volts so I got my friend to jump it off and it melted his jumper cables. I went and bought a new battery and put it the new battery in and it still won't start. Someone help me please. This is my only car.

07-30-2004, 11:09 PM	#11
lxfiveoh Registered Member Join Date: Mar 2002 Location: Miami, FL Posts: 54	How are those battery cables? They do corrode on the inside sometimes and that really impedes any current from flowing to or from the battery. __________________ Nelson 1990 Mustang LX 5.0 http://fiveoh.homestead.com

07-31-2004, 06:40 PM	#12
ruquick Registered Member Join Date: May 2001 Location: houston, tx Posts: 17	Ok I changed the ignition switch and now the car starts and runs fine. The mech. temp gauge reads avg. 220 to 230. Isn't that to hot. Should I try and flush the radiator myself or should I pull it out and take it some where and have it done? or should I try an aftermarket fan like an electric fan? Thanks

08-01-2004, 08:58 AM	#13
lxfiveoh Registered Member Join Date: Mar 2002 Location: Miami, FL Posts: 54	I vote for a NEW radiator. __________________ Nelson 1990 Mustang LX 5.0 http://fiveoh.homestead.com

08-01-2004, 11:30 AM	#14
mustangII460 Factoy Five Roadster Join Date: May 2000 Location: Sevier Co,Tennessee Posts: 1,681	Have you tried to get more air out, or check your coolant mixture? Check the simple things first. If not, just go ahead and replace the motor, im sure it will fix it. __________________ Frank

08-01-2004, 07:56 PM	#17
ruquick Registered Member Join Date: May 2001 Location: houston, tx Posts: 17	Ok say if the radiator is bad and I need to replace it. Where should I get one? I like to keep both of my arms and legs. Autozone has a 3 row for $160 would that be any good?

08-01-2004, 08:20 PM	#18
lxfiveoh Registered Member Join Date: Mar 2002 Location: Miami, FL Posts: 54	If you decide to replace the radiator, a 3 core is probably overkill, but it would work. If you are on a budget, just pick up a stock 2 row replacement. Good luck, __________________ Nelson 1990 Mustang LX 5.0 http://fiveoh.homestead.com

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