coolant overflow

liftedtrucks4me · 11-07-2008, 10:32 AM

I just came home from school and i back up a hill to park in my driveway, i was with my girlfriend and showing off and spun tires up the hill, when i parked it my overflow coolant bottle poured out. What does this mean? Is it bad? What do I need to do to fix it?

gmctrucks · 11-07-2008, 05:58 PM

What year truck how many miles have you ever had the radiator cleaned out what have you replaced in the cooling system?

PickUpGirl787 · 11-07-2008, 06:48 PM

did it pour out? or did it look like a volcano? what color was it?

liftedtrucks4me · 11-07-2008, 09:26 PM

its a 86 ford f150, 351, flushed the radiator last march or april

it was a volcano coming out and it was fizzy and foamy until it hit the ground then regular antifreeze color

gmctrucks · 11-07-2008, 09:33 PM

Check your thermostat see if it's not stuck closed might just change it and if it's old, also check your lower radiator hose make sure it's not clasping even a bad radiator cap will fool one good also check your fan clutch. Keep us posted.

liftedtrucks4me · 11-07-2008, 09:39 PM

i will look at all that but i put brand new upper and lower radiator hoses last spring, when i first got the truck i had coolant problems so i changed the hoses for sure but i will check the thermostat

leolkfrm · 11-08-2008, 05:18 AM

First you can't impress a girl with a ford!

sorry had to do it

it sounds like the cooling system is marginal when you put a load on the engine, look at the fins in the radiator especially the bottom half, lightly rub you finger on them and see if they are soft, the radiator may not have enough cooling capacity left for a heavy work out. look inside and See how well the coolant is flowing,

87c10slammer · 11-08-2008, 01:21 PM

my past issues have always lead to the thermostate or rad cap... if the thermostate is stuck closed then the antifreeze inside the block with expand alot when it gets hot and the water pump spins faster then normal... but if the rad cap isnt providing a good seal then when the system starts to pressurize then it will just go directly into the overflow and youll see that volcano.. both are a cheap fix so you should be spending more then 40 bucks combined and it will give you a little more security next time you try to impress the girl with a ford...lol

bradrhale · 11-08-2008, 02:41 PM

last time i seen that was an overheated engine.

gmctrucks · 11-08-2008, 02:46 PM

Forgot to mention if you have driven in mud or weeds the bottom part of your radiator might be dirty that can cause it from not cooling correct.

11-07-2008, 10:32 AM	#1
liftedtrucks4me Senior Member Join Date: Jan 2008 Location: Southwest Virginia Posts: 144	coolant overflow I just came home from school and i back up a hill to park in my driveway, i was with my girlfriend and showing off and spun tires up the hill, when i parked it my overflow coolant bottle poured out. What does this mean? Is it bad? What do I need to do to fix it?

11-07-2008, 06:48 PM	#3
PickUpGirl787 Senior Member Join Date: Dec 2006 Location: Illinois Posts: 711	did it pour out? or did it look like a volcano? what color was it? __________________ Ashley My first truck was a 1988 Chevy 1500 with the 305 My new truck is a 1997 GMC 1500 with the 350

11-08-2008, 05:18 AM	#7
leolkfrm Senior Member Join Date: Mar 2008 Location: N.Y. Posts: 4,927	First you can't impress a girl with a ford! sorry had to do it it sounds like the cooling system is marginal when you put a load on the engine, look at the fins in the radiator especially the bottom half, lightly rub you finger on them and see if they are soft, the radiator may not have enough cooling capacity left for a heavy work out. look inside and See how well the coolant is flowing, __________________ 4 wheels move the body 2 wheels move the soul B.W.A.I

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11-07-2008, 05:58 PM	#2
gmctrucks Senior Member Join Date: Nov 2006 Location: Houston,Texas Posts: 4,645	What year truck how many miles have you ever had the radiator cleaned out what have you replaced in the cooling system?

11-07-2008, 09:26 PM	#4
liftedtrucks4me Senior Member Join Date: Jan 2008 Location: Southwest Virginia Posts: 144	its a 86 ford f150, 351, flushed the radiator last march or april it was a volcano coming out and it was fizzy and foamy until it hit the ground then regular antifreeze color

11-07-2008, 09:33 PM	#5
gmctrucks Senior Member Join Date: Nov 2006 Location: Houston,Texas Posts: 4,645	Check your thermostat see if it's not stuck closed might just change it and if it's old, also check your lower radiator hose make sure it's not clasping even a bad radiator cap will fool one good also check your fan clutch. Keep us posted.

11-07-2008, 09:39 PM	#6
liftedtrucks4me Senior Member Join Date: Jan 2008 Location: Southwest Virginia Posts: 144	i will look at all that but i put brand new upper and lower radiator hoses last spring, when i first got the truck i had coolant problems so i changed the hoses for sure but i will check the thermostat

11-08-2008, 01:21 PM	#8
87c10slammer Banned Join Date: Mar 2008 Location: levittown pa Posts: 2,197	my past issues have always lead to the thermostate or rad cap... if the thermostate is stuck closed then the antifreeze inside the block with expand alot when it gets hot and the water pump spins faster then normal... but if the rad cap isnt providing a good seal then when the system starts to pressurize then it will just go directly into the overflow and youll see that volcano.. both are a cheap fix so you should be spending more then 40 bucks combined and it will give you a little more security next time you try to impress the girl with a ford...lol

11-08-2008, 02:41 PM	#9
bradrhale Senior Moderator Join Date: Apr 2006 Location: Texas Posts: 9,528	last time i seen that was an overheated engine.

11-08-2008, 02:46 PM	#10
gmctrucks Senior Member Join Date: Nov 2006 Location: Houston,Texas Posts: 4,645	Forgot to mention if you have driven in mud or weeds the bottom part of your radiator might be dirty that can cause it from not cooling correct.