Just talked to SVT tech at the new dealership. He said that when the F150's first came out in '97, that they had a counter weight on the catalytic converter. In '98 this was no longer used, but that he had in many instances used them to offset vibrational issues.

He called SVT Hotline and made the suggestion and they told him he was right on. Also, on late '00 and now '01 L's a new hanger bracket is being used that is connected to the transmission and this may also cause some vibration in the cab.

Now don't shoot me. I'm just the messenger. But if it cures the vibration, I'm all for it. My only problem is that it sounds like a band-aid solution not a root-cause fix.

Thoughts anyone? (Believe me, I'm still going to wait for the next L coming in for comparison)

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2000 Red Lightning - #835 of 4966 Born 3-8-00 / Delivered 3-22-00
22% Window Tint, Clear Corners, MPulse LoPro Tonneau, AIM 2" Drop Shackles, Bed Rug, PSP Filter Kit, Other Goodies, Group Buy Floor Mats
Best time: 13.45 sec. @ 101.99 mph

2000 Red Trans Am Ram Air WS6, 6 Speed - Delivered 2-15-00 - Awesome Looking Car

My Zing.com Album Click Here

 

This sounds like a muffler bearing ?!

 

n/m

 

IF I rember right my impala had the counter wieght on the converters. the exhuast is always the first thing to get changed not sure what they did.

 

My 99 F150 had a bad vibration when I bought it new. The dealer tried a bunch of time to fix it but nothing worked.

I decided to put a custom aftermarket cat back system on it,to make it sound better. When I left the exaust shop the vibration was gone.

So I think you might be onto something, with the counter weight idea. Might be intersting to have someone drive next to you and see if the exaust tips are shaking around when the vibration is happening.

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SILVER 2001 LIGHTNING
Built 02/14/01
Picked up 03/03/01
Sportmasters tonneau
Bedrug

http://members.tripod.com/donf150/Welcome/id7.html

 

Tell the tech to neutralize the exhaust system. This is not a joke, there is a tsb out on it. They loosen all exhaust fasteners except the manifolds, start it up while on the lift. Put it in drive. Foot on brake. Rev it up a couple of times. Shut it off. Tighten all fasteners. Sometimes exhaust tubing gets manufactured a few degress out of kilter and this will bend it back into position; the rev/idle, rev/idle will 'center' it.

While the SVT exhaust is unique to that model, the 97's had a similar setup (exit ahead of the rear wheel) and they did a bunch of those...

I guess I should clarify that a bit...the tsb is out on mainstream 'F' series, but due to the similarities it should apply

[This message has been edited by roger (edited 03-10-2001).]

 

Thanks Roger. The tech said there was a TSB out for it. Maybe he's not a stump afterall.

 

Hey What04!
I'm very happy for you in finding the resolve, to the Nasty Engine Vibration.

Roger, I want to thank you very much for enlightening us on this TSB! Do you guys know the specific TSB number for this fix?

I searched and found several TSB's in ALLDATA.com, but not the specific number, I can have it handy for the service mgr if my 2001L has these symtoms when it arrives. Since i'll be trading in my 2000L, Im sure they would like to take care of the N.E.V. in it as well.

PLEASE reply with this TBS number...

Thank you fellers very much!
J.

 

Might it be this ? :

99-11-1 JUN 99 Noise/Vibration/Harshness-TSB Special

 

Thank's Blacklight!
I'll dang sure mention this TSB # when I take Casper to the dealer for trade.

J.

 

The tech. didn't know the TSB number and said that it had been revised anyway.

The Exhaust Dampner Counter Weights part number is: XL3Z-5G209-BA Two are required.

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2000 Red Lightning - #835 of 4966 Born 3-8-00 / Delivered 3-22-00
22% Window Tint, Clear Corners, MPulse LoPro Tonneau, AIM 2" Drop Shackles, Bed Rug, PSP Filter Kit, Other Goodies, Group Buy Floor Mats
Best time: 13.45 sec. @ 101.99 mph

2000 Red Trans Am Ram Air WS6, 6 Speed - Delivered 2-15-00 - Awesome Looking Car

My Zing.com Album Click Here

 

WHAT04

So was that the right TSB number ?

[This message has been edited by BlackLight (edited 03-15-2001).]