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**Palf70Step** · 10-31-2003, 05:58 PM

Professional, backyard and whomever

Problem is with my 96 GMC, leat I think it is a problem. I am noticing an extra ordinary amount of fluid coming out of the drain tap for the heater/AC. It doesn't appear to have any antifreeze in it, just the normsal very cold clear water.

What is bothering me in the last few weeks I lost about a quart or so of coolant. In two years I lost less than that. I don't see coolant in the oil and no leaky hoses or the radiator.

It just seems to be the AC drip part. Could the Heater core be leaking, but not drip out antifreeze/coolant?

Am I worring over nothing.?

I don't have a pressuse tester to test the system, and it is not running hot.

Any ideas.

I'd hate to be doing the 50 mile trip to and from school after work Monday or Tuesday and have it crap out on me.

Thanks folks.

*rage'nrat638* · 10-31-2003, 06:54 PM

got a over flow tank??? if not get one to recover any lost antifreeze from the rad. may loose a little when its very hot

crazy longhorn · 10-31-2003, 07:01 PM

Pull the sparkplugs, if you are getting coolant into the chambers you should see a green tint on the elctrodes/straps. Good luck,crazyL

69C10Atl · 10-31-2003, 11:43 PM

A buddy of mine has two 96 chevy truck and had also noticed coolant loss, but no leak. Come to find out the first Vortec engines had a problem with the intake manifold gaskets. He had to have the intakes pulled and new gaskets in both his Tahoe and Silverado.

Class of 69 · 11-01-2003, 12:43 AM

Bill, I know you are'nt going to want to do this, but.....taste the discharge from the A/C drip...if there's ANY anti-freeze in it , you will taste it, even if you can't see it with the eye. Old shade tree diagnostics!!!

dinnut · 11-01-2003, 01:32 AM

my moms burb had that intake manifold gasket thing redone at the dealership on her 97 burb. it was very very common problem after they released the vortec heads in 96.

**Palf70Step** · 11-01-2003, 07:59 AM

Class of 69....Tastes normal...tried it...althouh it wasn't by choice. had my big mouth open when I was under the truck lookin up.

Others thanks for ideas. I know about the intake trouble..Mine was redone about 2 years ago. Seems every small black I ever had had that trouble. I guess I'll be looking into more today.

Thanks folks.

**Palf70Step** · 11-01-2003, 11:54 AM

Well....I Hope I got it. Finally found a leak in the lower radiator hose. Guess until today it leaked when it wanted to.
As a side note, I am glad I don't do this for a livi8ng with these newer ones. Dang it was like major saurgery just to remove a hose.

Please someone kill the designer of the factor hose clamp (No offense engineer friends)

Thanks for all the help. So fer no leaks

10-31-2003, 05:58 PM	#1
Palf70Step State of Confusion! Join Date: Jul 2002 Location: Gulfport, MS USA Posts: 47,251	Help Please!! Professional, backyard and whomever Problem is with my 96 GMC, leat I think it is a problem. I am noticing an extra ordinary amount of fluid coming out of the drain tap for the heater/AC. It doesn't appear to have any antifreeze in it, just the normsal very cold clear water. What is bothering me in the last few weeks I lost about a quart or so of coolant. In two years I lost less than that. I don't see coolant in the oil and no leaky hoses or the radiator. It just seems to be the AC drip part. Could the Heater core be leaking, but not drip out antifreeze/coolant? Am I worring over nothing.? I don't have a pressuse tester to test the system, and it is not running hot. Any ideas. I'd hate to be doing the 50 mile trip to and from school after work Monday or Tuesday and have it crap out on me. Thanks folks. __________________ Bill 1970 Chevy Custom/10 LWB Fleetside 2010 Toyota Tacoma PreRunner SR5 Double Cab - DD Member of Louisiana Classic Truck Club (LCTC) Bill's Gallery Life isn't tied with a bow, but it's still a gift. Live simply. Love generously. Care deeply. Speak kindly. Leave the rest to God!

10-31-2003, 07:01 PM	#3
crazy longhorn Fabricate till you "puke" Join Date: Jun 2002 Location: Ill Posts: 9,402	Pull the sparkplugs, if you are getting coolant into the chambers you should see a green tint on the elctrodes/straps. Good luck,crazyL __________________ 69 longhorn,4" chop,3/5 drop, 1/2 ton suspension/disc brakes,1 1/2" body drop,steel tilt clip, 5.3/Edelbrock rpm intake/600 carb, Hooker streetrod shorties,2 1/2" exhaust/ H pipe/50's Flows , 6 spd Richmond trans,12 bolt/ 3.40 gears....

10-31-2003, 11:43 PM	#4
69C10Atl Trying to stick with it Join Date: Jul 2002 Location: Atlanta,GA Posts: 115	A buddy of mine has two 96 chevy truck and had also noticed coolant loss, but no leak. Come to find out the first Vortec engines had a problem with the intake manifold gaskets. He had to have the intakes pulled and new gaskets in both his Tahoe and Silverado. __________________ 69 Chevy C10 LWB somewhere in the pile of parts in my garage. 01 Cadillac STS as daily driver

11-01-2003, 12:43 AM	#5
Class of 69 Registered User Join Date: Mar 2003 Location: Stillwater MN Posts: 1,166	Bill, I know you are'nt going to want to do this, but.....taste the discharge from the A/C drip...if there's ANY anti-freeze in it , you will taste it, even if you can't see it with the eye. Old shade tree diagnostics!!! __________________ 69 GMC K10 ..some restoration required....still..

11-01-2003, 01:32 AM	#6
dinnut Registered User Join Date: Apr 2003 Location: missouri city, tx Posts: 4,486	my moms burb had that intake manifold gasket thing redone at the dealership on her 97 burb. it was very very common problem after they released the vortec heads in 96. __________________ 70 longbed 496/th400/Ford 9"

10-31-2003, 06:54 PM	#2
rage'nrat638 Account Suspended Join Date: Mar 2003 Location: THE FALL GUY CHICAGO IL Posts: 5,883	got a over flow tank??? if not get one to recover any lost antifreeze from the rad. may loose a little when its very hot

11-01-2003, 07:59 AM	#7
Palf70Step State of Confusion! Join Date: Jul 2002 Location: Gulfport, MS USA Posts: 47,251	Class of 69....Tastes normal...tried it...althouh it wasn't by choice. had my big mouth open when I was under the truck lookin up. Others thanks for ideas. I know about the intake trouble..Mine was redone about 2 years ago. Seems every small black I ever had had that trouble. I guess I'll be looking into more today. Thanks folks. __________________ Bill 1970 Chevy Custom/10 LWB Fleetside 2010 Toyota Tacoma PreRunner SR5 Double Cab - DD Member of Louisiana Classic Truck Club (LCTC) Bill's Gallery Life isn't tied with a bow, but it's still a gift. Live simply. Love generously. Care deeply. Speak kindly. Leave the rest to God!

11-01-2003, 11:54 AM	#8
Palf70Step State of Confusion! Join Date: Jul 2002 Location: Gulfport, MS USA Posts: 47,251	Well....I Hope I got it. Finally found a leak in the lower radiator hose. Guess until today it leaked when it wanted to. As a side note, I am glad I don't do this for a livi8ng with these newer ones. Dang it was like major saurgery just to remove a hose. Please someone kill the designer of the factor hose clamp (No offense engineer friends) Thanks for all the help. So fer no leaks __________________ Bill 1970 Chevy Custom/10 LWB Fleetside 2010 Toyota Tacoma PreRunner SR5 Double Cab - DD Member of Louisiana Classic Truck Club (LCTC) Bill's Gallery Life isn't tied with a bow, but it's still a gift. Live simply. Love generously. Care deeply. Speak kindly. Leave the rest to God!



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