Coolant Leak

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Mar 18, 2011 | 03:03 PM

jetaws6

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From: MD

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?

Mar 18, 2011 | 08:01 PM

SOMbitch

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My guess is the heater hose or HH fitting. If you can pressurize the cooling system you will prolly figure it out quick.....

Mar 18, 2011 | 08:02 PM

13lu91rS

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From: oviedo, FL

get a pressure tester.

Mar 19, 2011 | 01:47 PM

jetaws6

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From: MD

what will a pressure tester tell me?

Mar 19, 2011 | 09:24 PM

01BlackCamaroSS

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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

Mar 19, 2011 | 09:36 PM

LaBLKv6Z

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From: Lafayette, Louisiana

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.

Mar 20, 2011 | 12:04 PM

jetaws6

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alright 16 psi sounds good

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Mar 20, 2011 | 09:44 PM

LaBLKv6Z

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From: Lafayette, Louisiana

Quote:

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

Mar 21, 2011 | 06:40 AM

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O2Form

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I stand corrected! So where are they putting this restrictor valve...I've never seen it on my 99 or 02 fbody?

Mar 21, 2011 | 12:44 PM

#11

LaBLKv6Z

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From: Lafayette, Louisiana

Its on the bigger heater hose (3/4") between the pump and core.

Mar 21, 2011 | 09:46 PM

#12

joecar

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From: So.Cal.

I don't see it.

Mar 22, 2011 | 08:28 AM

#13

jetaws6

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From: MD

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.

Mar 22, 2011 | 02:42 PM

#14

LS6427

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

.

Mar 22, 2011 | 02:49 PM

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LaBLKv6Z

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Quote:

Originally Posted by joecar

I don't see it.

Quote:

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. (......

)

Mar 22, 2011 | 03:47 PM

#16

joecar

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From: So.Cal.

Quote:

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.

Mar 22, 2011 | 10:11 PM

#17

LaBLKv6Z

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From: Lafayette, Louisiana

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.