2nd Transmission Filter Help!!!

[vanionBB]

I added a secondary transmission filter from summit racing and now there is a high pitch whine sound. I think it is coming from the engine compartment, but I am not sure.

It only happens when the RPM's are at 2500 or higher, no matter what gear (though it does not seem to happen when it is standing still) It only seems to happen when the truck is under load.

1. I thought it was the belt, since I spilled some ATF on it, so I replaced this and it had no effect on the whine.

2. The tensioner seems to be working.

3. I double checked the in / out of the filter and it was installed correctly.

4. I removed the 2nd filter, but the sound is still there.

5. The sound seems to coincide with a loss of power at high rpm.

My guesses:
1. Something on the drive belt is going bad, ps pump maybe, or alternator. (I plan on removing the belt and driving it around the block to see if the sound goes away).

2. Cam shaft position sensor. I am not sure this would be effected by load conditions and I think this would make noise regardless of the rpm's.

Any help would be very much appreciated.

Best Regards

 

[vanionBB]

I was not able to find a answer by searching so I will throw this out there.

* I tested the truck without the serpentine belt and the noise is still there.

* I checked the spark on the coil packs and they all spark and they all are blue, when they are disconnected each one drops the rpm's and it runs rougher, like a plug is misfiring.

The sound appeared directly after I installed the 2nd filter and drove it for about 50 miles. I am 98% sure it was hooked up correctly, the truck shifted perfectly with the filter hooked up.

If the filter was hooked up incorrectly, would the transmission shift? What kind of damage would hooking it up incorrectly cause? Maybe the filter material detonated and is floating around in the ATF!!! Ugh...

Would any of this cause a noise that only happens at 2500 rpm's or higher in any gear? Could it possibly be something else causing the noise?

Thanks in advance for any help.

Best Regards

 

[vanionBB]

I am not sure about neutral or park though, but 1st, 2nd, 3rd, and 4th all share the same whine at 2500RPM and higher.

 

[vanionBB]

The filter looks ok, I think I will disassemble it and post the pictures.

Cheers!

 

[jwrezz]

Gears? Transfer case? Trans? Has your trans been regularly maintained before the filter addition? I ask 'cause I've heard of trans problems developing after an hight mileage trans gets it's first filter and fluid change. A whine could be any thing. Loss of power too tho. Keep us posted.

 

[Doubt Incarnate]

mine whines from the front around 40-45mph, i think its the front end gears. if you get it in all gears at the same rpms, check to see that you put the filter kit on right and didnt put the "in" line in the "out" port.

 

[jwrezz]

mine whines from the front around 40-45mph, i think its the front end gears. if you get it in all gears at the same rpms, check to see that you put the filter kit on right and didnt put the "in" line in the "out" port.

Sounds like he had it set up correctly from the get go. I mean it doesn't take much, AND I see his signature says he's an E.E. so...well, 'nuff said! LOL

 

[Turdle]

I would bypass the aux filter and see if noise is eliminated.
just get a double barb fitting and clamp it in line.
Maybe the filter is defective

 

[vanionBB]

I put it back to stock setup the moment I noticed the noise. I will try a fluid flush, though I am not sure how successful that will be. I have a feeling that I will be purchasing a transmission jack soon... My best guess is the Torque Converter.

The noise isnt there in park or neutral when RPM's are high. Only when it is in gear. I ran up the RPM's to 2500 in 1st with the brake on and the whine was present. Could it be a modulator or servo or something?? I hate to pull the tranny

 

[vanionBB]

Gears? Transfer case? Trans? Has your trans been regularly maintained before the filter addition? I ask 'cause I've heard of trans problems developing after an hight mileage trans gets it's first filter and fluid change. A whine could be any thing. Loss of power too tho. Keep us posted.

It has miles on it, maybe even 200,000 miles. I did just change the tranny filter recently but everything was working until I added the 2nd filter.

I removed the 2nd filter the moment I heard the whine noise, and the noise is still there.

 

[vanionBB]

Sounds like he had it set up correctly from the get go. I mean it doesn't take much, AND I see his signature says he's an E.E. so...well, 'nuff said! LOL

Attention to detail! I am certain I put the filter in correctly, I know the torque converter is having problems maybe this was the last straw for it...

 

[BrooklynBay]

Did you try to adjust your kick down cable? Sometimes you will get some noise if this is not adjusted properly.

 

[vanionBB]

ooh, I did push that thing around some. I will have a look at it when the sun comes up

 

[vanionBB]

Ok the kickdown seems to be fine.

I did a flush, reinstalled the filter ensuring it was installed the correct way, and my brother brought over some Lucas Tranny Molassas in a can. I figgured what the hell, cant hurt.

So far it sounds like the noise is sorta getting softer, at least when it is warmed up. It is still there but more so in the background.

I didnt mention this before but there is also some sort of code that I cant read out that flashes the O/D light. The truck has done this since I have owned it. I havent driven it for a while, so I sorta forgot about it, but it is still there.

When the O/D flashes, but there is no CEL, is a code stored somewhere else? How do I go about getting that code out so I can find out what is up? The scanner I normally use does not pull up the O/D flashing code so I dont know where to begin.

Thanks again for your thoughts.

Cheers!

 

[jwrezz]

OK, well it's time for a trans rebuild! That light means something. If it's been going for a long time, I''d say you finished it off by now! LOL Good luck!

 

[jwrezz]

Sorry for not explaining. Yes, the OD flashing is storing a code. My reader got it when mine went. I have an AutoXray, can't remember which model tho. I'd imagine you can get it scanned at a shop for a nominal fee.

 

[vanionBB]

My Schucks uses AutoXray and it has never been able to pull a code from the tranny. I am not sure where to start without a code.

The thing is the tranny shifts great, I havent had a problem with shifting through the gears, so I dont think the internal hard parts are bad... Also when I dropped the pan, I didnt find any large chunks of metal, and the filter was stock 1996 material (never had been changed).

Oh, the O/D light only flashes after the truck warms up. It does not flash when the truck is cold. After the truck warms up, if I cycle the engine off and then on, the O/D light wont flash again till it gets cold again. I have driven it all day with after it has warmed up, and the O/D light never does come on again.

Does the comptuer store codes somewhere else? Why would the O/D light flash and not store a code?

 

[jwrezz]

Well if you're "lucky" it may just be the T.C. The code I pulled was some thing to do w/ lock up clutch. My auto xray isn't the newest, but I sent in an old one and upgraded maybe 18 months ago. I'm gonna go check the model.

 

[jwrezz]

EZ scan 6000

 

[BrooklynBay]

A temperature related problem could be from the VB gaskets, or loose VB bolts. The intermittant CEL could be from the intermediate band. Do you ever get any flare ups in 2nd gear? Just because the OD light flashes doesn't always mean that the problem is related to OD.