water pump going?

magnifistang · January 11th, 2006, 08:13 PM

hey guys i have a bit of a problem just recently my low coolant light came on so i did the obvisous thing and checked my fluid and indeed it was low so i filled it and went on my merry way not too long after it came on again and once again it was low. i have checked the radiator and it is not leaking the hoses are not cracked or leaking i am just thinking that it may be the water pump i know these are supposedly problematic with the 5.0's if anyone has some insight for me it would be great

99mustang232 · January 11th, 2006, 09:25 PM

the waterpumps have a seep hole on them, when the gasket goes it will leak out the hole, if this is not the issue....

might want to check your oil.. or for leaking at the heater core if not bypassed... also most of the throttlebodies have a coolant hose attached to them.

i have also seen where the rad's have had cracks in them half way up the side then it will leak out to a certian point and stop, once you refill it, it will start again until the level reaches the crack then it stops.

Twist 2 Go · January 11th, 2006, 09:47 PM

most common 5.0 leak points- in no particular order

1)heater core
2)thermostat housing
3)heater core
4)intake gaskets
5)heater core
6)timing cover
7)heater core
8)water pump

oh, almost forgot, ck the heater core. pull back the carpet on the pass side footwell and see if it's wet underneath.

89LX50 · January 12th, 2006, 08:56 AM

So you're saying the heater core might be bad?

Do you see any coolant on the ground after the car sits? If it's the water pump make sure you don't break off any bolts in the block, not that I did that the last 2 times I changed mine.

99mustang232 · January 12th, 2006, 10:33 AM

Originally Posted by 89LX50

If it's the water pump make sure you don't break off any bolts in the block, not that I did that the last 2 times I changed mine.

removing them or by overtorqing?

Twist 2 Go · January 12th, 2006, 12:00 PM

they almost always break on removal due to the corrosion,

99mustang232 · January 12th, 2006, 12:34 PM

i guess i was just lucky on my 86, but i also use the hell out of some pb blaster

89LX50 · January 12th, 2006, 02:24 PM

Originally Posted by Twist 2 Go

they almost always break on removal due to the corrosion,

He hit it on the head. The guys at MAS hooked me up though. I got their fee for toeing, used the shop for free and then Skip helped me get the broken bolts out.

FastFiveO · January 12th, 2006, 09:49 PM

it may be a sensor. my bro's cougar had done this before and that is what it was.

January 11th, 2006, 08:13 PM	#1
magnifistang Newbie Join Date: Jan 2006 Posts: 4 iTrader: 0 reviews	water pump going? hey guys i have a bit of a problem just recently my low coolant light came on so i did the obvisous thing and checked my fluid and indeed it was low so i filled it and went on my merry way not too long after it came on again and once again it was low. i have checked the radiator and it is not leaking the hoses are not cracked or leaking i am just thinking that it may be the water pump i know these are supposedly problematic with the 5.0's if anyone has some insight for me it would be great

January 11th, 2006, 09:25 PM	#2
99mustang232 MM Fanatic 1999 Ford Mustang V6 Join Date: Sep 2005 Location: newport news, va Posts: 3,745 iTrader: 0 reviews	the waterpumps have a seep hole on them, when the gasket goes it will leak out the hole, if this is not the issue.... might want to check your oil.. or for leaking at the heater core if not bypassed... also most of the throttlebodies have a coolant hose attached to them. i have also seen where the rad's have had cracks in them half way up the side then it will leak out to a certian point and stop, once you refill it, it will start again until the level reaches the crack then it stops. __________________ ...even fire and single cammin 1986 Ford F-150 5.0L 2WD 1994 Toyota Pickup 2.4L 4WD 1999 Ford Mustang 3.8L V6 2002 Jeep Grand Cherokee 4.0L 2WD 2008 GMC Sierra Denali 6.2L AWD

January 11th, 2006, 09:47 PM	#3
Twist 2 Go Hardcore Enthusiast Join Date: Aug 2005 Location: Chesapeake, Virginia Posts: 1,716 iTrader: 0 reviews	most common 5.0 leak points- in no particular order 1)heater core 2)thermostat housing 3)heater core 4)intake gaskets 5)heater core 6)timing cover 7)heater core 8)water pump oh, almost forgot, ck the heater core. pull back the carpet on the pass side footwell and see if it's wet underneath. __________________ 88 Mustang Coupe 2006 FFW Richmond True Street Runner-Up www.rickscarcare.net

January 12th, 2006, 08:56 AM	#4
89LX50 Regular Join Date: Aug 2005 Location: Hummelstown PA or DC depending on the day Posts: 100 iTrader: 0 reviews	So you're saying the heater core might be bad? Do you see any coolant on the ground after the car sits? If it's the water pump make sure you don't break off any bolts in the block, not that I did that the last 2 times I changed mine. __________________ No More 5.0

January 12th, 2006, 12:00 PM	#6
Twist 2 Go Hardcore Enthusiast Join Date: Aug 2005 Location: Chesapeake, Virginia Posts: 1,716 iTrader: 0 reviews	they almost always break on removal due to the corrosion, __________________ 88 Mustang Coupe 2006 FFW Richmond True Street Runner-Up www.rickscarcare.net

January 12th, 2006, 12:34 PM	#7
99mustang232 MM Fanatic 1999 Ford Mustang V6 Join Date: Sep 2005 Location: newport news, va Posts: 3,745 iTrader: 0 reviews	i guess i was just lucky on my 86, but i also use the hell out of some pb blaster

January 12th, 2006, 09:49 PM	#9
FastFiveO Regular Join Date: Dec 2005 Location: S.C. Posts: 79 iTrader: 0 reviews	it may be a sensor. my bro's cougar had done this before and that is what it was. __________________ 86 Mustang GT- twinturbo nitrous injected and much more. 86 Bronco- few mods

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