fullymatted.
Back to search
Rennlist

Changed Water Pump today

Add to repair workspace
Open repair workspace
Original source
40 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHChanged Water Pump today

Leading reported evidence

Replace belt

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

They also changed the belt.

Changed Water Pump today
Frequently discussed work

Recommend oem pump or a geba unit

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 guys recommend the OEM pump or a Geba unit with the metal impeller?

Changed Water Pump today
Read full discussion summary

Leading evidence: 'Replace belt' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Recommend oem pump or a geba unit' (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 · 40 captured posts examined · 0 partial discussions

Compare 4 other evidence results

Replace other than brakes and tires

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

I've had so many parts replaced other than brakes and tires.

Changed Water Pump today

Replace serpentine belt along

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

i changed my serpentine belt along with the water pump.

Changed Water Pump today

Replace water pump today - not

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

As the title says, I changed my water pump today - not because it failed, it was working fine.

Changed Water Pump today

Replace water pumps

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

I have changed water pumps on very old front engined cars but never on a rear engined car much less a 911.

Changed Water Pump today
Frequently discussed actions (10)

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

Recommend oem pump or a geba unit

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 guys recommend the OEM pump or a Geba unit with the metal impeller?

Changed Water Pump today

Replace (i later bought one

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 changed it because it's 15 years old and had minor crusting AND I had a water pump sitting on my bench for over 4 years from when I previous mechanic tried scamming/scaring/shaming me and trying to get me to change it when it didn't need changing (I later bought one because I figured I would need one at some point and it's better to buy one cheaply over the internet, than pay full price when something has gone wrong).

Changed Water Pump today

Replace belt

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

They also changed the belt.

Changed Water Pump today

Replace coolant

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

It is reasonable if the dealer also flushed and replaced coolant.

Changed Water Pump today

Replace due

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

It's not often that you can count on 1 hand the number of items (beyond tires and brakes) that have needed changing due to failure after almost 15 years.

Changed Water Pump today

Replace other than brakes and tires

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

I've had so many parts replaced other than brakes and tires.

Changed Water Pump today

Replace serpentine belt along

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

i changed my serpentine belt along with the water pump.

Changed Water Pump today

Replace water pump today - not

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

As the title says, I changed my water pump today - not because it failed, it was working fine.

Changed Water Pump today

Replace water pumps

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

I have changed water pumps on very old front engined cars but never on a rear engined car much less a 911.

Changed Water Pump today

Run 65k

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 lost a couple of pints of coolant after a mountain run - 65k on the pump.

Changed Water Pump today
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.

40 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.

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

Outcome without a verified action link

I had a loaner Panamera while my water pump was being changed - it's a remarkable car, but it's still not a 911.

No unique explicit quoted action; no causal link assigned

Generation: 20261026T144035Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

As the title says, I changed my water pump today - not because it failed, it was working fine. Not out of paranoia, no signs of issues. Not because there was looseness, grinding, or other noises. In fact, my dealer said that there was minor crusting around the shaft, but nothing serious and I could probably have left it on the car longer. I changed it because it's 15 years old and had minor crusting AND I had a water pump sitting on my bench for over 4 years from when I previous mechanic tried scamming/scaring/shaming me and trying to get me to change it when it didn't need changing (I later bought one because I figured I would need one at some point and it's better to buy one cheaply over the internet, than pay full price when something has gone wrong). Anyways, short story long, my 15 year old water pump that some would believe was an impending disaster waiting to happen didn't have any major leaks and didn't have any broken fins waiting to find their way into my engine and cause it to instantaneously turn it into a big, useless, metal brick. Boringly it was working fine and showing no signs of being an issue any time soon. I know that will really distress some people. I figure we need more feel good stories sometimes.

POST 3Original post

i changed mine out last year for the exact same reason as you and it was fine, no issues whatsoever.

POST 4 / ORIGINAL POSTEROriginal post

Quotes source post: 11371057

Yup, anything issue that receives way too much attention than it deserves.

POST 6Original post

I think you should have a doctor check out that crusting around the shaft. My water pump worked perfectly fine until the day it didn't, so good job replacing it preemptively. No matter how well maintained a machine is, parts wear out over time. Thankfully, the 996 parts that need replacement are now fairly well known, and doing the work as preventive maintenance insulates us from the spike at the end of the curve (and expensive tow bills).

POST 7Original post

I changed out mine when it was 10yrs/55k miles. The blades are all fine but the shaft felt scratchy and the bearing had some noise when being spun by hand. I did the low-t thermo and complete coolant drain the same time and the pump was ~$250. I think it's cheap insurance for me.

POST 8 / ORIGINAL POSTEROriginal post

Quotes source post: 11371101

78K - actually very young in the scheme of water pump lifetimes. I would expect most water pumps to last well in excess of 100K

POST 9Original post

i changed my serpentine belt along with the water pump.

POST 10Original post

Quotes source post: 11371132

Mine was fine until I ran the car up to 150MPH. I leaked coolant all the way home from the desert. Close to redline in 5th gear was more than the water pump bearing wanted to deal with.

POST 11Original post

Nice job. I have a water pump sitting on my work bench…do you want to come over and do mine now that you are a pro?

POST 12 / ORIGINAL POSTEROriginal post

Quotes source post: 11371227

I'm sure my dealer would be happy to do the work for $500.

POST 13Original post

Thanks, I'm sure that would be a waste of money. I'll just sit tight until the old one has "crust," "noisy bearings," and exploding plastic parts.

POST 14Original post

Your Porsche has served you well Wellardmac and your ahead of me on miles.(I'm just at 68k miles for MY99)

POST 15 / ORIGINAL POSTEROriginal post

Quotes source post: 11371366

Yup, it has been an awesome car. I would never envisage keeping a car this long, but I really have no reason to change it considering how reliable it has been. At my current use level I'm still good for 5 years before I hit 100K, so we'll see if I still have it then, but right now I see no reason for change. It's not often that you can count on 1 hand the number of items (beyond tires and brakes) that have needed changing due to failure after almost 15 years.

POST 16 / ORIGINAL POSTEROriginal post

Quotes source post: 11371394

You know, we should be celebrating that statement more often! My 1999 911 is still better than any Boxster, Cayman or Cayenne that I've ever driven. That's remarkable. I had a loaner Panamera while my water pump was being changed - it's a remarkable car, but it's still not a 911.

POST 17Original post

I've had so many parts replaced other than brakes and tires. Let's see; coolant tank, MAF, broken hinge on center console, 1 wheel bearing...A total of 5 for me, not bad at all.

POST 19 / ORIGINAL POSTEROriginal post

Quotes source post: 11371421

See, that's pretty good for a 15 year old car! That's why I still hold these cars as being among the most reliable on the road. I've had Fords and Hondas with way more issues that I've spent a lot more money on.

POST 20Original post

Out of curiosity, did you R&R the pump from the bottom like most DIY's say, or remove the idler pulley and R&R from the top, as I've read in a couple of threads? This is on my list to do and I'm looking for the least stressful method. Edit. Never mind. I should learn how to read.

POST 21Original post

At first it kind of read like he did a DIY job but he let the dealer change it. I was all excited to give him a big for a PM DIY water pump job but . I hope he didnt really have to pay the dealer $500. Sure seems high.

POST 22 / ORIGINAL POSTEROriginal post

The dealer did the job. 5 hours of labor. Seems reasonable to me.

POST 23Original post

Quotes source post: 11372092

It is reasonable if the dealer also flushed and replaced coolant. Glad to hear car is running strong. I have a soft spot for white MK1 996 aeros..

POST 24 / ORIGINAL POSTEROriginal post

Quotes source post: 11372236

Good to hear from you Chao! They did. They also changed the belt. I thought it was a pretty good deal. The car is still running strong and still as sexy as ever. People look at it and are amazed that it's still in showroom condition after almost 15 years. I love the car and don't see a reason to change it any time soon. I finally got rid of the cold air intake earlier in the year. I was so sick and tired of it throwing check engine lights and chewing threw MAF sensors, so I pulled that off and threw it in the trash. In good conscience I couldn't scam anyone else by selling it to them. MAF sensors are really expensive and I'm tired of that POS eating them. So, I'm now back to the stock air box and a new MAF sensor, so let's see how well it does now that I've dumped the EVO CAI.

POST 25Original post

Did you have a lift or ramps? How would you rate your skills as a mechanic? Just wondering how difficult a DIY job this is. I have changed water pumps on very old front engined cars but never on a rear engined car much less a 911. On a front engined car it is a pretty easy straight forward job. I assume the same about the 911, once you get access.

POST 26Original post

Quotes source post: 11372537

You will need to have the car on jack stands or a lift but overall it's not that hard a job (6/10). As I recall, one of the bolts holding the pump in is a PITA and the pump can be a little tricky to get in/out. You will need a mix of small extension and flexible sockets for the job. It will also be beneficial to use a compressor-based vacuum pump that refills the coolant while removing any air from the system.

POST 27 / ORIGINAL POSTEROriginal post

Quotes source post: 11372537

I paid my friendly dealer to do it. If it takes them 5 hours to do it, which it did (They gave me a nice Panamera loaner as a result) then I'd expect you to need some skills to do this yourself.

POST 28Original post

I lost a couple of pints of coolant after a mountain run - 65k on the pump. No bearing noise or play , but spotted a drip on the bottom of the pump area - after taking it out - the fins were fine - but the cavity the fins run in was scored on the bottom- so bearing was definitely worn. Based on experience on these boards i'd say it is good preventative to do these around 60k/8 years - doesn't hurt to flush the old coolant at this age also.

POST 29Original post

Quotes source post: 11372705

$500 is a smoking deal!! The pump itself is $250.

POST 30Original post

You guys recommend the OEM pump or a Geba unit with the metal impeller?

POST 31Original post

Quotes source post: 11372941

I would recommend OE as metal blades will damage the engine block if and when it fails.

POST 32Original post

Quotes source post: 11372617

Why stands and not a ramp? Do the back wheels and wheel well covers have to come off to get to it?

POST 33Original post

Quotes source post: 11373004

The back wheels do not have to come off. I guess you could try to use a ramp but my car is lowered therefore I probably would not be able to without damaging the front bumper/lip.

POST 34Original post

Quotes source post: 11372947

I was thinking the metal blades would not fail like the OE piece...Good to know. Where can one get an OE pump for $250? Cheapest I've seen is ~$350 for the TT pump. thanks

POST 35Original post

Quotes source post: 11373213

Yes, the metal blades may never fail but it sill uses the same bearing, which will fail someday. I got mine from Sunset Porsche.

POST 36 / ORIGINAL POSTEROriginal post

Quotes source post: 11372892

No, that was labor. I bought the pump a few years ago and had it sitting on my bench after a previous mechanic tried scamming me.

POST 37Original post

Quotes source post: 11373311

Ah, I missed that. Sounds about the right price from a dealer.

POST 38Original post

Quotes source post: 11370970

Last weekend I moved the box that contains the water pump sitting in my garage for the past 2 years. I've really been lazy.

POST 39Original post

Quotes source post: 11372526

Cool, Wayne. It's great to hear that another old-timer(we're longtime 996 owners, not old age wise... ) is continuing to enjoy his 996.

POST 40 / ORIGINAL POSTEROriginal post

Quotes source posts: 11373691, 11374290

To be honest, I was kinda relived that they said the pump was slightly seeping, as it meant I could get one more box if clutter off my bench. . They would have been happy to let me postpone the change until it had more play and a bigger loss of fluid. Yup, nice to see that some of opted to keep our cars longer, rather than selling and moving on.

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