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04-07-2020
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#11 |
 
Join Date: Nov 2007
Location: Sunshine State
Posts: 1,071
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Re: Weird water leak
Sounds like a cold temperature leak to me.... often associated with a loose clamp. I had pretty much the same situation... took a bit to nail down, but I found a loose clamp, gave it a twist and its been fixed for months. Coolant can travel down hoses and parts of the engine and under carriage which will lead you to believe the source is in one place, but actually it will be in a totally different spot.
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[B]1990 #2815[/B] [COLOR="Red"][B]Red/Red[/B][/COLOR] Ported Plenum & IH (by Pete) Haibeck Chip Rebuilt FPR (by Phil) FIC Injectors Watson LT Headers 3" Stainless Works exhaust Lingenfelter Open Air Lid Bill B Built Transmission Shifter & C Beam Plates [FONT=Impact][COLOR=red]1992 [COLOR=black]#[/COLOR] 091[/COLOR][/FONT] [FONT=Impact][COLOR=#ff0000]Red/[COLOR=silver]Gray[/COLOR][/COLOR][/FONT] [B]SOLD[/B] |
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04-07-2020
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#12 |
 Join Date: Apr 2004
Location: ATL. GA.
Posts: 2,163
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Re: Weird water leak
As stated check the water pump weep hole.
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Steve 1990 Steel Blue/Black #2355 1990 Red/Red #1473 1991 Quasar /Black #118 Sold 1991 Turquoise/Black #766 Parted Out 1993 Yellow/White #179 Sold 1990 Black/Gray #1361 Headers/4:10s Sold |
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04-07-2020
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#13 |
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Join Date: Apr 2020
Location: Ridgecrest ca
Posts: 71
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Re: Weird water leak
Thanks a bunch guys will ck tomorrow when it’s warmer raining cats and dogs right now
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04-08-2020
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#14 |
 Join Date: Aug 2006
Location: McLean, VA
Posts: 3,707
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Re: Weird water leak
One word of caution. If you use pressure test tool, do not over-pressurize the system. I would stay below 15 psi.
Over-pressurization could lead to heater core failure and a few of us believe the heater core is GM part number 000001 - very first to be bolted onto the chassis. Heater core replacement is not a fun work. 
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04-08-2020
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#15 | |
 
Join Date: Aug 2012
Location: Ellicott City, MD
Posts: 1,635
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Re: Weird water leak
Quote:
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Charlie __________ Dredgeguy WAZOO Member 1992 Bright Red/Black ZR1 #246 Dana 4:10 gears Polished LT5 by Haibeck Polished Fikse FM5's with Michelin Pilot Sport 2 Stainless Works headers and cats with Corsa |
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04-08-2020
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#16 |
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Join Date: Apr 2020
Location: Ridgecrest ca
Posts: 71
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Re: Weird water leak
I have done the heater core replacement it’s a ugly job yes I too believe they started with the heater core one the line to build the car first lol
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04-08-2020
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#17 |
Join Date: Oct 2017
Location: TX
Posts: 1,963
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Re: Weird water leak
On my '90 I would notice a few drips of coolant from front center after sitting overnight. Seemed like the cooler the weather the larger the leak.
First thought was water pump, but weep hole showed no signs of leakage. Found several water pump mounting bolts loose. Torqued to speck and no more leakage. Been about a year with all well. On another note, I had a few small oil leaks. All were corrected by correctly torquing nuts & bolts. You would be surprised how many fasteners are loose after 30 years!
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Kenny 1990 #442 
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04-08-2020
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#18 |
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Join Date: Apr 2020
Location: Ridgecrest ca
Posts: 71
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Re: Weird water leak
Ty I will ck the outfit it ever stops raining here lol
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