General Maintenance & Repairs Leaks | Squeaks | Clunks | Rattles | Grinds

Coolant Leak

Old 03-18-2011, 03:03 PM
  #1  
TECH Regular
Thread Starter
iTrader: (3)
 
jetaws6's Avatar
 
Join Date: Jan 2010
Location: MD
Posts: 488
Likes: 0
Received 0 Likes on 0 Posts

Default Coolant Leak

I have a coolant leak someone in the back of the motor. Its not the block off crossover pipe plugs and it looks like its coming from the passenger side. I had it jacked up and running but I didn't see anything leaking. but there was a drip from somewhere.

Where else can I check?
Old 03-18-2011, 08:01 PM
  #2  
TECH Senior Member
iTrader: (8)
 
SOMbitch's Avatar
 
Join Date: Sep 2007
Posts: 6,881
Likes: 0
Received 3 Likes on 3 Posts
Default

My guess is the heater hose or HH fitting. If you can pressurize the cooling system you will prolly figure it out quick.....
Old 03-18-2011, 08:02 PM
  #3  
TECH Regular
iTrader: (1)
 
13lu91rS's Avatar
 
Join Date: Nov 2007
Location: oviedo, FL
Posts: 432
Likes: 0
Received 0 Likes on 0 Posts
Default

get a pressure tester.
Old 03-19-2011, 01:47 PM
  #4  
TECH Regular
Thread Starter
iTrader: (3)
 
jetaws6's Avatar
 
Join Date: Jan 2010
Location: MD
Posts: 488
Likes: 0
Received 0 Likes on 0 Posts

Default

what will a pressure tester tell me?
Old 03-19-2011, 09:24 PM
  #5  
TECH Regular
iTrader: (1)
 
01BlackCamaroSS's Avatar
 
Join Date: Jan 2006
Location: Maryland
Posts: 411
Likes: 0
Received 0 Likes on 0 Posts

Default

It will tell you if your cooling system is holding the correct pressure as well as help pinpoint the leak that you are looking for
Old 03-19-2011, 09:36 PM
  #6  
TECH Fanatic
iTrader: (13)
 
LaBLKv6Z's Avatar
 
Join Date: May 2010
Location: Lafayette, Louisiana
Posts: 1,317
Received 208 Likes on 160 Posts

Default

Yeah it works great, just put 16 psi and look for a nice stream lol. Mine ended up being the plastic restrictor valve on the bigger heater hose.
Old 03-20-2011, 12:04 PM
  #7  
TECH Regular
Thread Starter
iTrader: (3)
 
jetaws6's Avatar
 
Join Date: Jan 2010
Location: MD
Posts: 488
Likes: 0
Received 0 Likes on 0 Posts

Default

alright 16 psi sounds good
Old 03-20-2011, 01:02 PM
  #8  
Banned
 
O2Form's Avatar
 
Join Date: Oct 2009
Posts: 992
Likes: 0
Received 1 Like on 1 Post
Default

Originally Posted by LaBLKv6Z
Yeah it works great, just put 16 psi and look for a nice stream lol. Mine ended up being the plastic restrictor valve on the bigger heater hose.
Plastic restrictor valve....I'd love to hear all about this restrictor valve.
Old 03-20-2011, 09:44 PM
  #9  
TECH Fanatic
iTrader: (13)
 
LaBLKv6Z's Avatar
 
Join Date: May 2010
Location: Lafayette, Louisiana
Posts: 1,317
Received 208 Likes on 160 Posts

Default

Originally Posted by O2Form
Plastic restrictor valve....I'd love to hear all about this restrictor valve.
Part number is 74796 if you need one..

http://www.autozone.com/autozone/par...mString=search
Old 03-21-2011, 06:40 AM
  #10  
Banned
 
O2Form's Avatar
 
Join Date: Oct 2009
Posts: 992
Likes: 0
Received 1 Like on 1 Post
Default

I stand corrected! So where are they putting this restrictor valve...I've never seen it on my 99 or 02 fbody?
Old 03-21-2011, 12:44 PM
  #11  
TECH Fanatic
iTrader: (13)
 
LaBLKv6Z's Avatar
 
Join Date: May 2010
Location: Lafayette, Louisiana
Posts: 1,317
Received 208 Likes on 160 Posts

Default

Its on the bigger heater hose (3/4") between the pump and core.
Old 03-21-2011, 09:46 PM
  #12  
TECH Senior Member
 
joecar's Avatar
 
Join Date: Apr 2002
Location: So.Cal.
Posts: 6,077
Likes: 0
Received 11 Likes on 9 Posts

Default

I don't see it.
Old 03-22-2011, 08:28 AM
  #13  
TECH Regular
Thread Starter
iTrader: (3)
 
jetaws6's Avatar
 
Join Date: Jan 2010
Location: MD
Posts: 488
Likes: 0
Received 0 Likes on 0 Posts

Default

Well I tool a pressure tester to it last night and it turns out there are two leaks. One coming from a hose on the water pump and the other I haven't found yet but its not the heater core.
Old 03-22-2011, 02:42 PM
  #14  
Banned
iTrader: (2)
 
LS6427's Avatar
 
Join Date: May 2008
Location: South Florida
Posts: 11,291
Likes: 0
Received 11 Likes on 11 Posts

Default

I don;t see a restrictor valve on mine either........

.
Old 03-22-2011, 02:49 PM
  #15  
TECH Fanatic
iTrader: (13)
 
LaBLKv6Z's Avatar
 
Join Date: May 2010
Location: Lafayette, Louisiana
Posts: 1,317
Received 208 Likes on 160 Posts

Default

Originally Posted by joecar
I don't see it.
Originally Posted by LS6427
I don;t see a restrictor valve on mine either........

.
Getting alittle off track of the thread. Are you the original owner of the car? I've read that most guys just do away with it all together once it starts to leak. I just pointed out that mine leaked and it was a place to check to possibly help out the OP. Hell, OP might not even have one anymore either lol. (......)
Old 03-22-2011, 03:47 PM
  #16  
TECH Senior Member
 
joecar's Avatar
 
Join Date: Apr 2002
Location: So.Cal.
Posts: 6,077
Likes: 0
Received 11 Likes on 9 Posts

Default

Originally Posted by LaBLKv6Z
Its on the bigger heater hose (3/4") between the pump and core.
Closer to which end...?

(yah, I'm the original owner)

It's related to this thread, the rest of us can go an check our restrictors.
Old 03-22-2011, 10:11 PM
  #17  
TECH Fanatic
iTrader: (13)
 
LaBLKv6Z's Avatar
 
Join Date: May 2010
Location: Lafayette, Louisiana
Posts: 1,317
Received 208 Likes on 160 Posts

Default

When it was stock, it was mounted with pressed fittings, now I have it held in with worm clamps. Mine is bypassed at the moment because I don't feel like draining coolant everywhere again.





Thread Tools
Search this Thread

All times are GMT -5. The time now is 03:05 PM.