Important Chirping Pump Update...

[SpectreRT]

On my third pump. Crickets are back, but heavily muffled. Its not nearly as bad as it was. Still unacceptable.

Get your ^&* together, toyobaru.

[Eio]

Originally Posted by Pete156

For those that don't want to change the HPFP remember the secret formula:

No Corn = No Chirping

I can still get gasoline in Corpus, but only regular at 87 octane. Would you guys use it in this car over the premium octane gasohol specified?

[husker741]

Originally Posted by Eio

I can still get gasoline in Corpus, but only regular at 87 octane. Would you guys use it in this car over the premium octane gasohol specified?

No. There's a reason they say premium. Think of it as running a tune for 91, but you use 87. Our cars are "tuned" for premium from the factory. Have some annoying, harmless sounds with 10% ethanol rather than having annoying, harmful sounds from anything less than premium.

[kALMIGHTY]

Anybody getting any chirps in the cold winter in Canada? I'm close to 9800 km (6100 miles) and I've never had chirping, but I've always used Esso 91 (or Exxon for you USA people) which is supposedly ethanol free here where I live.
I want to try 94 octane though to see how the car feels but the 94 octane has 10% ethanol and I don't want to risk getting the crickets just to see how 94 octane feels.

[Taro]

Originally Posted by kALMIGHTY

Anybody getting any chirps in the cold winter in Canada? I'm close to 9800 km (6100 miles) and I've never had chirping, but I've always used Esso 91 (or Exxon for you USA people) which is supposedly ethanol free here where I live.
I want to try 94 octane though to see how the car feels but the 94 octane has 10% ethanol and I don't want to risk getting the crickets just to see how 94 octane feels.

I didn't know 94 causes crickets until last week. I put 94 in for the first time, instant crickets. I switched back to 91, and they seem to have went away. My advice would be to avoid 94. I noticed no difference in performance, anyway

[Pete156]

Originally Posted by Taro

I didn't know 94 causes crickets until last week. I put 94 in for the first time, instant crickets. I switched back to 91, and they seem to have went away. My advice would be to avoid 94. I noticed no difference in performance, anyway

It's not the 94 causing the crickets, it's the ethanol. No ethanol = no crickets.

[kALMIGHTY]

Originally Posted by Taro

I didn't know 94 causes crickets until last week. I put 94 in for the first time, instant crickets. I switched back to 91, and they seem to have went away. My advice would be to avoid 94. I noticed no difference in performance, anyway

Originally Posted by Pete156

It's not the 94 causing the crickets, it's the ethanol. No ethanol = no crickets.

Yeah it's the 10% ethanol in the 94 here that worries me. Oh well, looks like it's not worth it. I'll just stick to me ethanol free 91.

[nunonuna]

Are toyobaru even aware ofthe fact that ethanol is cause??

We all believe it is the ethanol that causes cricket which I also believe so, but it seems manufacturers think differently. Reason for me to say that is because if they think ethanol is the reason, they should come up with a lot better solution.

Sent from my Galaxy Nexus using Tapatalk

[fledonfoot]

Originally Posted by nunonuna

Are toyobaru even aware ofthe fact that ethanol is cause??

I work for a Toyota service department as a Service Writer.

According to my Toyota FTS engineer and District Service/Parts Manager, yes they are aware that ethanol makes it worse.

I do about 30,000+ miles a year in my car as a daily. I'm on my fifth fuel pump as the changes have been made - the first from the factory, a replacement at 10k with the same OE part. Pump 3 was the countermeasured part with the same part number (rev.A). When that one made noise, my FTS rep had me replace it with another so the revised part could be sent back to be torn apart and inspected. I've had the 3rd revision fuel pump in my car for about 3400 miles so far and had no noise come back, and I've been asked to use a different filling station and brand of fuel at every fillup. I was getting approx 2500 miles before having a chirp return on the other pumps.

So far so good for me, at least.

[FR-S Matt]

Originally Posted by fledonfoot

I work for a Toyota service department as a Service Writer.

According to my Toyota FTS engineer and District Service/Parts Manager, yes they are aware that ethanol makes it worse.

I do about 30,000+ miles a year in my car as a daily. I'm on my fifth fuel pump as the changes have been made - the first from the factory, a replacement at 10k with the same OE part. Pump 3 was the countermeasured part with the same part number (rev.A). When that one made noise, my FTS rep had me replace it with another so the revised part could be sent back to be torn apart and inspected. I've had the 3rd revision fuel pump in my car for about 3400 miles so far and had no noise come back, and I've been asked to use a different filling station and brand of fuel at every fillup. I was getting approx 2500 miles before having a chirp return.

So far so good for me, at least.

Yet it wasn't good for some as well. See if they are considering insulating the fuel pump as that has fixed it for me so far. There are a few in the main thread who have gone a few thousand miles on the new pump with them returning.

[fledonfoot]

The third revision fuel pump is the "insulated" one.

These have been trickling out to dealers very slowly since the revised TSB in late october.

I know for a fact the parts hit the Manual Allocation list for a while in early November and Toyota were only shipping a handful a day with DSPM/FTS approval, and some dealerships were just installing the old Rev.A part in place of the new pump as it was taking 2-4 weeks to get the new pump in.

There is the possibility that if the dealer told you in November that they installed the newer pump and you got it in less than 2-3 days from the TSB update going live, you might actually have the older part if you have an unscrupulous service dept that plays with part number supersessions. I personally watched the backorder numbers climb every day on Dealer Daily's parts warehouse inventory until they started shipping- mine left the Baltimore warehouse for me on 11/21. I think anyone that was told that they had the new pump installed in the CAT or NY regions in early November might want to double check part numbers.

There is also, obviously, the possibility that the new pump can also make noise, too. Which is why I'm mixing up my fuel as much as I can.

[strat61caster]

Originally Posted by fledonfoot

The third revision fuel pump is the "insulated" one.

Which is why I'm mixing up my fuel as much as I can.

I believe Matt's pump is insulated in addition to the insulation that the redesign adds.

http://www.ft86club.com/forums/showp...postcount=3489



This is the thing that frustrates me the most, telling people you have to use different fuel at every fill up or sacrifice a chicken before every start up to prevent a 'problem' is really fucking shitty. Either say the noise is normal or release a pump that has 5 lbs. of sound deadening added to it and call it a day.

[fledonfoot]

Originally Posted by strat61caster

This is the thing that frustrates me the most, telling people you have to use different fuel at every fill up or sacrifice a chicken before every start up to prevent a 'problem' is really fucking shitty. Either say the noise is normal or release a pump that has 5 lbs. of sound deadening added to it and call it a day.

They're not asking me to do that to prevent the noise... they're asking me to see if I can get it to happen.

I could fill my car with Sunoco Ultra 93 and enjoy a nice quiet drive on the old pumps. I could then go and fill the car with Citgo or BP fuel and within 100 miles get the chirps to return all the time. Go back to Sunoco and after about 200-250 miles it would go away. Shell premium fuel would occasionally cause it, but I couldn't develop a pattern like I could with the other three.

Also, I'd be interested to see how the tech externally insulated the fuel pump, given the relatively tight confines of the fuel lines, cover, etc.

[Razz]

How did they insulate the pump?