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Help checking list of everything I need to swap Water Pump and Coolant

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THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

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YOUR RESEARCHHelp checking list of everything I need to swap Water Pump and Coolant

Leading reported evidence

Check before ordering

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Suggestion

Might want to check before ordering.

Help checking list of everything I need to swap Water Pump and Coolant
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Leading evidence: 'Check before ordering' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check before ordering' (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.

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Check pulleys by hand

Suggestion or failed attempt

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Suggestion

Good time for a new serpentine belt and check all pulleys by hand.

Help checking list of everything I need to swap Water Pump and Coolant

Fill coolant system

Suggestion or failed attempt

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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.

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Suggestion

You will need/want the "air lift tool" to properly fill the coolant system with out running the risk of air pockets....

Help checking list of everything I need to swap Water Pump and Coolant

Recommend porsche coolant mixed 50/50

Suggestion or failed attempt

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Unsuccessful attempts
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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

I would only recommend Porsche coolant mixed 50/50 with distilled water.

Help checking list of everything I need to swap Water Pump and Coolant

Replace 3-way hose since you will have it off anyway

Suggestion or failed attempt

No successful repair reported for this finding.

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Reported fixes
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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

I also echo replacing the 3-way hose since you will have it off anyway, but depending on the build date of your car you may also need to upgrade the steel coolant pipe that routes around the rear of the engine, Given no service records, have a good look at your inlet/outlet coolant hoses, reservior tank, motor mounts, & O2 sensors.

Help checking list of everything I need to swap Water Pump and Coolant
Frequently discussed actions (10)

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Check before ordering

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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

Might want to check before ordering.

Help checking list of everything I need to swap Water Pump and Coolant

Check pulleys by hand

No successful repair reported for this finding.

0
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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

Good time for a new serpentine belt and check all pulleys by hand.

Help checking list of everything I need to swap Water Pump and Coolant

Fill coolant system

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

You will need/want the "air lift tool" to properly fill the coolant system with out running the risk of air pockets....

Help checking list of everything I need to swap Water Pump and Coolant

Recommend porsche coolant mixed 50/50

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

I would only recommend Porsche coolant mixed 50/50 with distilled water.

Help checking list of everything I need to swap Water Pump and Coolant

Replace 3-way hose since you will have it off anyway

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

I also echo replacing the 3-way hose since you will have it off anyway, but depending on the build date of your car you may also need to upgrade the steel coolant pipe that routes around the rear of the engine, Given no service records, have a good look at your inlet/outlet coolant hoses, reservior tank, motor mounts, & O2 sensors.

Help checking list of everything I need to swap Water Pump and Coolant

Replace clamps

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

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Suggestion · Original poster

Do I need to replace clamps on all tubes or other tubing while I'm in there?

Help checking list of everything I need to swap Water Pump and Coolant

Replace plastic coolant connector next

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Suggestion

Also a good time to replace the plastic coolant connector next to the alternator with the upgraded metal one.

Help checking list of everything I need to swap Water Pump and Coolant

Replace then now if the time

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Suggestion

If the coolant reservoir on your car has not been changed then now if the time to do it.

Help checking list of everything I need to swap Water Pump and Coolant

Replace water pump (and fresh coolant flush) as preventative

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Discussions that contain suggestions
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Suggestion · Original poster

I want to tackle changing the water pump (and fresh coolant flush) as preventative on my 100k 1999 that I've had for 1,000 miles so far.

Help checking list of everything I need to swap Water Pump and Coolant

Run peak coolant

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Read evidence and context
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Suggestion

As far as the type of coolant I can only say that since 2008/2009 when I had an intermix from a cracked cylinder head and flushed my entire system, I have been running Peak coolant, for 14 years and over 50,000 miles and I have never had a problem and Peak now makes a G50 type of coolant.

Help checking list of everything I need to swap Water Pump and 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.

10 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: 20261027T192637Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

I want to tackle changing the water pump (and fresh coolant flush) as preventative on my 100k 1999 that I've had for 1,000 miles so far. I have no prior service records. Living in SoCal, the summer temps are high and don't want any surprises. What am I missing to do this myself: 1. Water pump https://www.pelicanparts.com/More_In...0&KeepHeader=Y 2. Pump bolts (pulled from Pelican's kit page) (2x) https://www.pelicanparts.com/More_In...0&KeepHeader=Y (5x) https://www.pelicanparts.com/More_In...0&KeepHeader=Y 3. Gasket https://www.pelicanparts.com/More_In...0&KeepHeader=Y 4. Zerex G-40 (6x ??) https://www.walmart.com/ip/Zerex-G40...1-GA/534216443 5. Jack-stands and Floor jack - I have 4 Esco stands plus low profile jack 6. Large container to catch coolant - Kitty liter box was suggested 7. Tools as outlined in this post - https://blog.fcpeuro.com/how-to-repl...ump-thermostat Are there any gotchas I should be aware of before starting? Do I need to replace clamps on all tubes or other tubing while I'm in there? Pelican recommends a new belt as well.

POST 2Original post

Good time for a new serpentine belt and check all pulleys by hand. Also a good time to replace the plastic coolant connector next to the alternator with the upgraded metal one. I would only recommend Porsche coolant mixed 50/50 with distilled water. Might also think about a new thermostat. After many heat cycles they wear out. Up to you whether to go with normal or low temp thermostat. I would only trust a thermostat from LN Engineering.

POST 3Original post

Quotes source post: 18673772

Definitely do this. I'd also suggest changing out the three-way hose for the newer, updated one. You're going to have part of it off already. Part: 99610685005 Also, the water pump may already come with the gasket. Might want to check before ordering. Good time for air filter as well since the box will be out. #1 thing for this job is patience. I was shocked at how easy of a job it looked, and how difficult it turned out to be and I have worked on a lot of cars including a ton of work on my own 996. It's a deceptive job. Be sure and watch this: Porsche 911/996 water pump replacement DIY�Watch before you attempt! - YouTube

POST 4 / ORIGINAL POSTEROriginal post

Quotes source post: 18673854

aye yi yi... Every post says how anyone can do it, and how it's easy ... yet back of mind I keep thinking, "are you sure you want to take this on? there's gotta be more to this than revealed"

POST 5Original post

This DIY kit from LN Engineering has a good list including a new thermostat. If you don't want to buy the kit from LN then use their list as a template. https://lnengineering.com/products/d...riven-csp.html I also echo replacing the 3-way hose since you will have it off anyway, but depending on the build date of your car you may also need to upgrade the steel coolant pipe that routes around the rear of the engine, Given no service records, have a good look at your inlet/outlet coolant hoses, reservior tank, motor mounts, & O2 sensors. These are all easier to deal with when doing the water pump. If you want to do a proper coolant flush then use this procedure...it's just short of 6 gallons so not sure if a kitty litter pan is going to cut it! https://rennlist.com/forums/996-foru...pump-tips.html

POST 6Original post

Quotes source post: 18674219

Do you happen to have the part number for that upgraded coolant pipe?

POST 7Original post

Quotes source post: 18674230

The pipe P/N is 996.106.243.54...this is the one that works with the 996.106.850.05 3-way hose.

POST 8Original post

If the coolant reservoir on your car has not been changed then now if the time to do it. And use the Porsche reservoir not an aftermarket. You can use the new style reservoir on the earlier model cars, I have one in my 2000, it is more work to use one but is much less expensive than the old style. I would also suggest that you get a Uview 55000 coolant tool so you can properly empty and refill the system and flush the old coolant out thoroughly. As far as the type of coolant I can only say that since 2008/2009 when I had an intermix from a cracked cylinder head and flushed my entire system, I have been running Peak coolant, for 14 years and over 50,000 miles and I have never had a problem and Peak now makes a G50 type of coolant. Spending extra for the "Porsche" coolant is just paying the Porsche tax, spend the money on the Uview instead.

POST 9 / ORIGINAL POSTEROriginal post

Quotes source post: 18674219

I have a feeling I won't be driving for a month... I forgot to ask about the flush process - was looking at buying the compressor adapter but the "flush with air" looks like a valid process... But why not just buy a vacuum tool?

POST 10Original post

You will need/want the "air lift tool" to properly fill the coolant system with out running the risk of air pockets....

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