Coolant Leak near back of engine

G

Globule

Founding Member

May 13, 2002

177

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Oct 16, 2004

#1

• Oct 16, 2004

• #1

I have a coolant leak that I can't seem to trace down. It seems to be at the back of the engine, leaks onto the tranny, then leaks onto the ground. I've looked at the hoses around the throttle body and heater core and I don't see any leaks or holes in them. The leak seems to be very fast at times but sometimes much slower.

Anyone have any ideas on where it might be coming from?

 

90mustangGT

I felt sorry for girls because

Founding Member

Jan 15, 2002

2,773

17

89

Dallas, GA

Oct 16, 2004

#2

• Oct 16, 2004

• #2

If your sure it isn't the heater hoses (they do kind of fold up back there) then make sure it isn't the hard lines that run between the upper and lower intake manifolds, the hard lines I am talking about are what the heater hoses and EGR coolant hoses connect. If it isn't those I hate to tell you that it is either the lower intake manifold or worse case, the head gasket. I would pull the upper intake and do a pressure test and see what you get.

 

runningmole

Founding Member

Jun 24, 2002

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San Diego, CA

Oct 16, 2004

#3

• Oct 16, 2004

• #3

It could also be the rear EGR hose. Mine leaked right where it connects to the lower intake, damn PITA just for that little hose!

 

HISSIN50

"How long does it take to get help in here?

15 Year Member

Nov 29, 1999

31,179

34

129

Oct 17, 2004

#4

• Oct 17, 2004

• #4

last idea: the heater core and a/c have a discharge tube, IIRC. it is like a tray deal inside the car which dumps outside the car, near the pass firewall.

 

chobracobra

New Member

Jun 29, 2004

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jersey shore

Oct 27, 2004

#5

• Oct 27, 2004

• #5

If it is leaking from a little rubber hose on the firewall infront of the heater core, it is your heater core. It is a tell-tale hole put there to keep the green pool of death on your dirveway and not in your passenger compartment.

 

04sleeper

Founding Member

Jun 22, 2002

2,674

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89

Dallas, TX

Oct 27, 2004

#6

• Oct 27, 2004

• #6

It could be a freeze plug on the back of your block. Hopefully not because you'll have to pull the tranny and clutch/flywheel just to change it.

 

squeeeg

Founding Member

Jul 4, 2000

1,905

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Michigan

Oct 28, 2004

#7

• Oct 28, 2004

• #7

HISSIN50 said:

last idea: the heater core and a/c have a discharge tube, IIRC. it is like a tray deal inside the car which dumps outside the car, near the pass firewall.

Click to expand...

This was my first thought also. The same thing happened to me adn finally I caught it leaking onto the header from the weap hole.

 

8

88gtvertboy

New Member

Aug 16, 2004

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maple valley wa.

Oct 28, 2004

#8

• Oct 28, 2004

• #8

Globule said:

I have a coolant leak that I can't seem to trace down. It seems to be at the back of the engine, leaks onto the tranny, then leaks onto the ground. I've looked at the hoses around the throttle body and heater core and I don't see any leaks or holes in them. The leak seems to be very fast at times but sometimes much slower.

Anyone have any ideas on where it might be coming from?

Click to expand...

you might have an external coolant leak coming from the head gasket.

 

ALMOSTFINISHED

Member

Jan 8, 2004

315

0

17

Westchester County NY

Oct 28, 2004

#9

• Oct 28, 2004

• #9

Couldnt it also be the lower intake gasket leaking? I know that gm's are notorious for this. just a thought
good luck
Nick