(TSB) No More Crickets Under My Hood!!

[jeebus]

Originally Posted by Jesse

after tsb.
i ordered the parts/gaskets directly off the TSB.

will have to see if the part # ever changes. im up to 12,000 miles, im used to the sound.

well that sucks.

[HunterGreene]

Originally Posted by ATL BRZ

They didn't figure it out, we did, and they (Toyota/Subaru) didn't fix anything. Those having the TSB performed are getting the exact same part # fuel pump as before that was causing the chirp in the first place.

Toyota and Subaru have not manufactured a "new" revised fuel pump that truly quiets the chirp and given it a new part #.

The TSB does nothing to solve the issue, since it calls for replacing the chirping fuel pump with the exact same pump. See for yourself and then get the engine HOT running E10 gasoline, and while it's idling the chirp will likely be heard again.

The problem with giving it a whole new number is that then you have to print and release whole new technical manuals for each dealership, or you risk creating confusion in the parts stream. The part can be revised and still have the same part number. Like I said earlier, its a piece of equipment, not a software patch.

Think of it this way--the xB went through a change back in 2007-08, but it is still called the xB (xB2, by the community). They changed the car, but not the name.

If they were doing this right (of which I am in doubt), they would be recalling internally all the HPFPs that were made before a certain date, and resupplying with the revised HPFP. I have a feeling we will be hearing from a few (but not all) of the owners who got the pump replaced almost immediately after the TSB was issued, that the crickets will return.

[Hanakuso]

The one thing I don't get if they truly made a revised pump with the same part # is that it seems like warehouse/inventory jobs would be extremely hard to figure which is which..

If that is the case you would think they could easily make a mistake and give you the older "faulty" pump, only to find out the chirping comes back.

[HunterGreene]

Originally Posted by Hanakuso

The one thing I don't get if they truly made a revised pump with the same part # is that it seems like warehouse/inventory jobs would be extremely hard to figure which is which..

If that is the case you would think they could easily make a mistake and give you the older "faulty" pump, only to find out the chirping comes back.

I'm suspecting that that has already happened. What I am hoping is that Toyota tracks the shipments of "old" fuel pumps that are in their parts warehouses in the US and sends them elsewhere.

[ATL BRZ]

Originally Posted by Hanakuso

The one thing I don't get if they truly made a revised pump with the same part # is that it seems like warehouse/inventory jobs would be extremely hard to figure which is which..

If that is the case you would think they could easily make a mistake and give you the older "faulty" pump, only to find out the chirping comes back.

This.

[enigmaaron]

Originally Posted by Hanakuso

The one thing I don't get if they truly made a revised pump with the same part # is that it seems like warehouse/inventory jobs would be extremely hard to figure which is which..

If that is the case you would think they could easily make a mistake and give you the older "faulty" pump, only to find out the chirping comes back.

It really shouldn't be that hard, just send a notice out saying that all current stock of fuel pumps are bad, remove from shelf immediately and return for new stock. Anything received from now until date xxxx should be considered faulty and returned. Of course whether or not they listen and follow those directions is another thing.

[CMOS]

Originally Posted by ATL BRZ

They didn't figure it out, we did, and they (Toyota/Subaru) didn't fix anything. Those having the TSB performed are getting the exact same part # fuel pump as before that was causing the chirp in the first place.

Toyota and Subaru have not manufactured a "new" revised fuel pump that truly quiets the chirp and given it a new part #.

The TSB does nothing to solve the issue, since it calls for replacing the chirping fuel pump with the exact same pump. See for yourself and then get the engine HOT running E10 gasoline, and while it's idling the chirp will likely be heard again.

Do you have some proof of the new part number? I was assuming that this will be revised across the board and stick to old #.

[ATL BRZ]

Originally Posted by CMOS

Do you have some proof of the new part number? I was assuming that this will be revised across the board and stick to old #.

No, I don't.

EDIT: Okay so the Subaru TSB is finally out, and it DOES specifically state the cause of the chirp and the required new pump and parts, but the COUNTERMEASURE is stated to be a specific corrective method of REASSEMBLY of the whole system to control orientation of the plunger stopper in the HPFP.

[rice_classic]

Originally Posted by xpicer

Finally, the fix has been posted on Toyota TIS. Time to schedule your visit to the dealer!!!!

Will you update the first page to add the Subaru TSB:

http://www.teknikrayon.net/docs/BRZ_fuelpumpTSB.pdf

[TRBO2NR]

Originally Posted by ATL BRZ

They didn't figure it out, we did, and they (Toyota/Subaru) didn't fix anything. Those having the TSB performed are getting the exact same part # fuel pump as before that was causing the chirp in the first place.

Toyota and Subaru have not manufactured a "new" revised fuel pump that truly quiets the chirp and given it a new part #.

The TSB does nothing to solve the issue, since it calls for replacing the chirping fuel pump with the exact same pump. See for yourself and then get the engine HOT running E10 gasoline, and while it's idling the chirp will likely be heard again.

ATL BRZ: You really have no idea how a manufacturing environment works do you??? You keep stating that because it is the same part number that they didn't fix anything... You are blurting out VERY uneducated responses giving people FALSE information. JUST because it is the same part number, does NOT mean it is the same part! Part numbers can remain the same, but the REVISION of the part is new. As others have said, if they change the part number, that would cause both Toyota, Subaru, and Scion to distribute all new service manuals and parts lists to EVERY dealer. By keeping the same part number and just changing the revision (meaning the part is updated), that eliminates the need for that. Just take a look at the part number and revision of the part on your part prior to taking it in and I bet any money that your new part that gets installed will have a newer revision letter/number on it depending on the company's procedure and standards. PLEASE stop giving out false information to everyone.

Sorry, but this has been really bugging me that many don't understand this process and figured it needed repeating since I believe others have also stated this.

[ATL BRZ]

Originally Posted by TRBO2NR

ATL BRZ: You really have no idea how a manufacturing environment works do you??? You keep stating that because it is the same part number that they didn't fix anything... You are blurting out VERY uneducated responses giving people FALSE information. JUST because it is the same part number, does NOT mean it is the same part! Part numbers can remain the same, but the REVISION of the part is new. As others have said, if they change the part number, that would cause both Toyota, Subaru, and Scion to distribute all new service manuals and parts lists to EVERY dealer. By keeping the same part number and just changing the revision (meaning the part is updated), that eliminates the need for that. Just take a look at the part number and revision of the part on your part prior to taking it in and I bet any money that your new part that gets installed will have a newer revision letter/number on it depending on the company's procedure and standards. PLEASE stop giving out false information to everyone.

Sorry, but this has been really bugging me that many don't understand this process and figured it needed repeating since I believe others have also stated this.

Sorry for raising a stink about it, we're all bothered by the same thing, which is the chirp and the lack of solid info surrounding the cause of it. I edited my previous posts with this, after finally reading the Subaru TSB, which is much more descriptive and helpful regarding the true root cause of the chirp:

EDIT: Okay so the Subaru TSB is finally out (thanks @rice_classic), and it DOES specifically state the cause of the chirp and the required new pump and parts, but the COUNTERMEASURE is stated to be a specific corrective method of REASSEMBLY of the whole system to control orientation of the plunger stopper in the HPFP. The Scion TSB did not elaborate on this when I read it!

It makes sense now why the part #'s are kept the same! The incorrect orientation of the hpfp plunger stopper is the root cause of the chirp, can we all agree on this as factual info now?

Those FRS owners who've had the chirps come back likely didn't have the plunger stopper in the HPFP oriented correctly during reassembly.
The Scion TSB should be updated with the crucial info from the Subaru TSB to avoid any misunderstandings about the root cause and the countermeasure!

[soconfoozed]

Originally Posted by ATL BRZ

Sorry for raising a stink about it, we're all bothered by the same thing, which is the chirp and the lack of solid info surrounding the cause of it. I edited my previous posts with this, after finally reading the Subaru TSB, which is much more descriptive and helpful with regarding to the true root cause of the chirp:

EDIT: Okay so the Subaru TSB is finally out (thanks @rice_classic), and it DOES specifically state the cause of the chirp and the required new pump and parts, but the COUNTERMEASURE is stated to be a specific corrective method of REASSEMBLY of the whole system to control orientation of the plunger stopper in the HPFP. The Scion TSB did not elaborate on this when I read it!

It makes sense now why the part #'s are kept the same! The incorrect orientation of the hpfp plunger stopper is the root cause of the chirp, can we all agree on this as factual info now?

I detailed this part numbering practice on the first page, dude.

Hey, guess what, I was right. Low incidence rate, nothing really wrong with the fundamentals of the pump. It's almost like I'm a mechanical engineer or something...

[TRBO2NR]

Can someone please post the Subaru TSB in this thread? I would like to read the details that ATL BRZ stated in detail. (not saying I don't believe him, I just want this info for my own use if my car that I will be picking up in early November needs this.)

[DaJo]

Originally Posted by TRBO2NR

Can someone please post the Subaru TSB in this thread? I would like to read the details that ATL BRZ stated in detail. (not saying I don't believe him, I just want this info for my own use if my car that I will be picking up in early November needs this.)

http://www.teknikrayon.net/docs/BRZ_fuelpumpTSB.pdf

This is good stuff; now Subaru is on top of their game!