1988 iroc loosing coolant
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Junior Member
Joined: Sep 2010
Posts: 9
Likes: 1
From: north carolina
Car: 1988 iroc-z
Engine: 5.7 tpi
Transmission: 700 r4
Axle/Gears: 3.27
1988 iroc loosing coolant
My camaro is loosing coolant,new hoses,cap and pump have been installed.Has no external leaks or heater core leakage,no water in oil,engine runs great.I guess it may be going out the exhaust,any ideas or experience with this problem?
Joined: Nov 2007
Posts: 845
Likes: 4
From: Salt Lake
Car: 1989 IROC & ROLL-Z
Engine: L98 Vortec FIRST TPI
Transmission: T56, Mech Speedo
Axle/Gears: G92 J65 3.27
Re: 1988 iroc loosing coolant
If there is no external leaking (you need to be sure) and your oil isn't coming out milkshake, coolant is leaking into the cylinders and out the exhaust during engine operation. (head gasket time) If it's a noticeable amount, you should be able to smell it in your exhaust.
Joined: Dec 2005
Posts: 4,795
Likes: 15
From: St. Cloud, MN
Car: 1984 Trans Am
Engine: LS1383 in work
Transmission: Magnum F - to be installed
Axle/Gears: Zexel Torsen 3.73, 28-spline mosers
Re: 1988 iroc loosing coolant
Also if you put your fingers under your exhaust, they'll come back wet...it'll be noticeable.
Thread Starter
Junior Member
Joined: Sep 2010
Posts: 9
Likes: 1
From: north carolina
Car: 1988 iroc-z
Engine: 5.7 tpi
Transmission: 700 r4
Axle/Gears: 3.27
Re: 1988 iroc loosing coolant
If there is no external leaking (you need to be sure) and your oil isn't coming out milkshake, coolant is leaking into the cylinders and out the exhaust during engine operation. (head gasket time) If it's a noticeable amount, you should be able to smell it in your exhaust.
Joined: Dec 2005
Posts: 4,795
Likes: 15
From: St. Cloud, MN
Car: 1984 Trans Am
Engine: LS1383 in work
Transmission: Magnum F - to be installed
Axle/Gears: Zexel Torsen 3.73, 28-spline mosers
Member

Joined: Nov 2010
Posts: 162
Likes: 0
From: Raleigh
Car: 1989 Iroc Z 5.7L
Engine: 5.7L
Transmission: T56
Axle/Gears: built 4.10s
Re: 1988 iroc loosing coolant
I had the same problem with my 89 TPI. I just went to autozone and used their block tester which is straight forward chemistry experiment and it confirmed that I had a leaking headgasket. So hopefully I will have it on the road again before the 4th.
Last edited by rwstegne; Jun 20, 2013 at 01:52 PM.
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Joined: Nov 2007
Posts: 845
Likes: 4
From: Salt Lake
Car: 1989 IROC & ROLL-Z
Engine: L98 Vortec FIRST TPI
Transmission: T56, Mech Speedo
Axle/Gears: G92 J65 3.27
Re: 1988 iroc loosing coolant
The way I see it, IM or head gaskets, you still have remove the same parts.
Go to autozone and buy head gaskets and an IM gasket set
Tear the intake down.
Found the leak! Yey! Fix it and return the head gaskets.
If not, keep going...
No need confusing yourself with all the "testing" to figure out what you already know. In the end, you have an internal coolant leak.
Go to autozone and buy head gaskets and an IM gasket set
Tear the intake down.
Found the leak! Yey! Fix it and return the head gaskets.
If not, keep going...
No need confusing yourself with all the "testing" to figure out what you already know. In the end, you have an internal coolant leak.
Member

Joined: Nov 2010
Posts: 162
Likes: 0
From: Raleigh
Car: 1989 Iroc Z 5.7L
Engine: 5.7L
Transmission: T56
Axle/Gears: built 4.10s
Re: 1988 iroc loosing coolant
Well, in my case both the intake and one of the head gaskets were leaking. The thought process was to verify the head gasket first prior to fixing the obvious intake leak, but I am not mechanic.
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