David94TA

There is a coolant air bleed valve on the neck of the radiator hose inlet on the intake and another in what appears to be a 5/8 inch heater hose. Is this second one absolutely necessary or can you successfully bleed the system using only the one on the large radiator hose inlet? I ask because I am having to replace the 5/8 inch hose.

my1994z28

There is one on the thermostat housing,and one on a coolant hose that goes to the w/p..Having both bleeders makes it easier to get the air out faster.

JGuy07

So you're saying you just don't want to hassle with it by fitting the section with the bleed screw back on? My opinion would be to go ahead and keep it, wouldn't take much more time fitting then what it would be to take it off...

David94TA

No, that is not what I am saying! The hose in question has a leak right at the junction of the rubber hose and the metal fitting containing the bleed valve. I have already checked on getting a new replacement and the local GM dealer said that this hose is showing as being discontinued but that he could possiblity get it for around $200.00. Now as far as dealing with the "hassle", I can replace a section of the hose and fab up a bleed valve--my question was simply will the one bleed valve in the thermostat housing be sufficient or is this second one absolutely necessary. Any time I have bled the coolant system, I have always gotten a lot more air out of the thermostat housing bleed valve than the other one.

ACE1252

Read this....
https://www.camaroz28.com/forums/sho...d.php?t=819889

shoebox

If the hose piece with the hole is #7 in this diagram (piece between bleeder and w/p), it is GM PART # 10215999 . You can carefully slit and peel off the swaged collar holding the hose to the bleeder assy and put the new little hose on with a normal hose clamp.

$200 would be for the complete heater hose assy, that is both hoses and metal pipe from w/p to heater core.

David94TA

OK, thanks.

boostedz28lt1

I have a heater hose complete for 50 shipped.

David94TA

PM sent

shoebox

In reference to post #6, here is how you can replace individual hoses.

BigBlackBeaSSt

There is an easier way to bleed the system and not run coolant down the front of the motor.

Injuneer

Please handle parts for sale with a "PM", not in the tech forums.

pgerst

bigblackbeasst -- where did you get that bleed valve? That is always my least favorite part of the coolant process; messing up the newly cleaned engine. Much better than a rag which becomes one with the power steering pump pulley...not that that has happened to me twice.

BigBlackBeaSSt

I buy them in bulk and sell them. I have a running group purchase at this link.

http://www.impalassforum.com/vBullet...d.php?t=255705

Brass are not very popular, so I only order the nickel plated brass version now. Not accepting Paypals any more this year, as Obama is dipping his hand in that pocket as well. Money orders work.

Tim