2000 chevy suburban wont burp issues
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2000 chevy suburban wont burp issues
ok I have 2000 suburban 1500 with 323 I think.my problem is.i cant not get all the air out of the coolant system.what do.I need to do?i can get some air out but not all.the upper rad hose get hots.what I've did flushed engine put new ac delco water pump in with new tstat and housing new antifreeze.
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Joined: Jul 2011
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From: Houston TX. USA
Recovery type Cooling Systems, should brim full the Radiator after several cooldowns on it's own. Just make sure that Reservoir is at proper Hot Level before shutting Engine down. Do not let the Reservoir run dry.
Reasons why the recovery may not happen...
Leak in main seal of Radiator Cap,
Surge valve of Radiator Cap stuck closed, or wrong Cap,
Recovery Tank to Radiator fill tube drawing air/leaking.
Replace Cap with proper type and or
Replace Tubing and clamp properly
The above is if you really have a Cap or Tube problem, however...
Many who do a flush/repair on cooling systems, do not get all the air out of the system to start with. Sometimes this is rather difficult to do, and gives the impression that there is Coolant loss, or air in the system.
If you suspect that there is Air captured in the system, then...
With the Engine Cold, open hood and remover Radiator Cap,
See that there is "some" level of Coolant in Radiator,
Crank Engine and turn (all) heaters to full hot,
Observe engine temperature to normal range, and validate that (all) Heat flow in Cab is Hot Air,
Continue to monitor Coolant Level in Radiator (you may get a burp so watch for an overflow),
Continue to refill until there is a stable level in Radiator,
Fill Radiator to brim full,
Replace Radiator Cap before you shut the engine down,
Fill Reservoir to Hot Level,
Return in one hour, check Reservoir for drop in level.
Check Reservoir Level several times immediately after uses, fill as necessary.
There will be a strong compulsion to remove the Radiator Cap to check the level after the above procedure.
This really is not necessary, and will continue to interrupt the automatic filling of the Radiator.
Try to surpress this urge.
Reasons why the recovery may not happen...
Leak in main seal of Radiator Cap,
Surge valve of Radiator Cap stuck closed, or wrong Cap,
Recovery Tank to Radiator fill tube drawing air/leaking.
Replace Cap with proper type and or
Replace Tubing and clamp properly
The above is if you really have a Cap or Tube problem, however...
Many who do a flush/repair on cooling systems, do not get all the air out of the system to start with. Sometimes this is rather difficult to do, and gives the impression that there is Coolant loss, or air in the system.
If you suspect that there is Air captured in the system, then...
With the Engine Cold, open hood and remover Radiator Cap,
See that there is "some" level of Coolant in Radiator,
Crank Engine and turn (all) heaters to full hot,
Observe engine temperature to normal range, and validate that (all) Heat flow in Cab is Hot Air,
Continue to monitor Coolant Level in Radiator (you may get a burp so watch for an overflow),
Continue to refill until there is a stable level in Radiator,
Fill Radiator to brim full,
Replace Radiator Cap before you shut the engine down,
Fill Reservoir to Hot Level,
Return in one hour, check Reservoir for drop in level.
Check Reservoir Level several times immediately after uses, fill as necessary.
There will be a strong compulsion to remove the Radiator Cap to check the level after the above procedure.
This really is not necessary, and will continue to interrupt the automatic filling of the Radiator.
Try to surpress this urge.
Last edited by SWHouston; May 22, 2013 at 10:38 AM.
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