Mechanics

GMC SONOMA NO HEAT PROBLEM

2000 GMC Sonoma • 145,000 miles

I swapped out the intake manifold because of a leak and then the thermostat because of no heat still have no heat and I see I have a bleeder valve how do I get to it to untighten it is there a certain wrench or a socket I'm unaware of?

Thank you
al50833
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Alananderson
December 25, 2012.



Never seen a bleeder. What motor and what year manifold did you use

Roy


ASEMaster6371
Dec 25, 2012.
Got a picture of the manifold and still no bleeder. Can you post a picture?

Roy


ASEMaster6371
Dec 25, 2012.
At least I believe this is a bleed valve right underneath where I put the thermostat in. Notice the square nut, is that a bleed screw because if not I already let her run for about 45 min with the radiator cap off and still no heat, the pipe shown there also is extreamly hot so I'm running out of ideas.


Tiny
Alananderson
Dec 25, 2012.
Ok, it is a port for adding a sensor or hose connections.

Rev the motor to 2500 rpm till you get heat. Then it is bled. Watch the coolant level

Roy


ASEMaster6371
Dec 25, 2012.