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Air in coolant/Bleeding coolant

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3 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHAir in coolant/Bleeding coolant

Leading reported evidence

Replace heater core and will be

Performed · outcome unconfirmed

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context

Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.

Discussions that performed work without a confirmed outcome
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Performed · outcome unconfirmed · Original poster

I replaced my heater core and will be replacing the coolant hose that runs from the expansion tank to the water pump.

Original post Read captured discussion
Air in coolant/Bleeding coolant
Frequently discussed work

Fill device will include the heater core loop

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion

This way the vacuum from the uview filling device will include the heater core loop.

Original post Read captured discussion
Air in coolant/Bleeding coolant
Read full discussion summary

Leading evidence: 'Replace heater core and will be' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Fill device will include the heater core loop' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.

Source reports, not a diagnosis or a success probability. Counts refer to discussions and can overlap.

Read captured replies

1 matching discussions · 3 captured posts examined · 0 partial discussions

Compare 4 other evidence results

Fill device will include the heater core loop

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context

Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.

Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion

This way the vacuum from the uview filling device will include the heater core loop.

Original post Read captured discussion
Air in coolant/Bleeding coolant

Fill heater core

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context

Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.

Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion · Original poster

Should I fill the heater core with coolant to limit the amount of air I will be bleeding?

Original post Read captured discussion
Air in coolant/Bleeding coolant

Fill system without any air pockets and not have

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context

Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.

Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion

Assuming you have an air compressor of about 5 gal or more, you will fill your system without any air pockets and not have to worry about overheating or cracked heads.

Original post Read captured discussion
Air in coolant/Bleeding coolant

Replace coolant hose

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context

Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.

Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion · Original poster

I replaced my heater core and will be replacing the coolant hose that runs from the expansion tank to the water pump.

Original post Read captured discussion
Air in coolant/Bleeding coolant
Frequently discussed actions (6)

These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.

Fill device will include the heater core loop

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion

This way the vacuum from the uview filling device will include the heater core loop.

Original post Read captured discussion
Air in coolant/Bleeding coolant

Fill heater core

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion · Original poster

Should I fill the heater core with coolant to limit the amount of air I will be bleeding?

Original post Read captured discussion
Air in coolant/Bleeding coolant

Fill system without any air pockets and not have

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion

Assuming you have an air compressor of about 5 gal or more, you will fill your system without any air pockets and not have to worry about overheating or cracked heads.

Original post Read captured discussion
Air in coolant/Bleeding coolant

Replace coolant hose

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion · Original poster

I replaced my heater core and will be replacing the coolant hose that runs from the expansion tank to the water pump.

Original post Read captured discussion
Air in coolant/Bleeding coolant

Replace heater core and will be

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that performed work without a confirmed outcome
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Performed · outcome unconfirmed · Original poster

I replaced my heater core and will be replacing the coolant hose that runs from the expansion tank to the water pump.

Original post Read captured discussion
Air in coolant/Bleeding coolant

Run engine

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion · Original poster

Is there any harm in running the engine with a significant amount of air in the coolant system after these repairs are finished?

Original post Read captured discussion
Air in coolant/Bleeding coolant
Coverage and how to read this overview

Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.

3 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.

  • Rennlist: 1 discussions

0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.

0 acknowledgements have no verified action link; they do not establish a repair result.

Generation: 20261026T135432Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

I replaced my heater core and will be replacing the coolant hose that runs from the expansion tank to the water pump. A few questions: 1. Anybody ever remove the hose from the expansion tank with the tank cap on? Will the majority of coolant remain in the tank because of the vaccuum or will it indeed flow out while I'm trying to quickly push the new hose on? 2. Should I fill the heater core with coolant to limit the amount of air I will be bleeding? 3. Is there any harm in running the engine with a significant amount of air in the coolant system after these repairs are finished? I dont know how the water pump will take a huge void of air moving through it.

POST 2Original post

1. Don't fuss with that. You'll make a big mess, get coolant all over everything and create air pockets. Open the cap, then drain the coolant into a 5 gal bucket from the coolant drain plug on the rear of the engine. You'll get a few gallons from the block. Have additional buckets for any other hoses you disconnect. 2. No. Read on. 3. Yes. Air pockets are bad. There are complex procedures (or gambling) to lift the bleeder valve and just hope the air goes away. In short, buy a uview airlift 55000 for about $100. Assuming you have an air compressor of about 5 gal or more, you will fill your system without any air pockets and not have to worry about overheating or cracked heads. You will do this while the heater is turned all the way up and the fan blower is switched on low. This way the vacuum from the uview filling device will include the heater core loop. There are countless threads about this procedure. Spend a little time with the search feature. Please don't try to do it "your way". Instead, do it the right way.

POST 3Original post

at least you asked before doing this....your new motor could get replaced again if you opt to wing it with some funky a$$ method like that

This is a source reference. Confirm exact model applicability in the original material.