Has anyone experienced a bucking feeling on OD under light throttle? It feels like the torque converter locking and unlocking. It goes away if you switch to the stock program.



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Mark Whatman
mwhatman@worldnet.att.net

• 99.5 White Lightning (PSP Filter & Chip)
• 99 Buell S3 Thunderbolt (not stock!)
• 98 F-150 Lariat (Flowmaster)
• 96 26' Velocity Offshore Race Boat (far from stock!!!)

 

Mine does this sort of thing and it's stock. In fourth when I kick it down hard on the highway. Like it bounces off the converter. Maybe it is hunting for the right gear or the speed is near the shift to forth point. Anyway I overcome this inherent tendancey by cutting off OD and then shifting at 120 into OD.
Jeff C.


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Red 99 Lightning (Totaled)
Black 99 Lightning
White 88 SVO Merkur Xr4ti
Sand Gold 88 Xr4ti
Silver 95 SHO
Red 99 Prelude SH adopted




[This message has been edited by Twisted99 (edited 01-29-2000).]

 

Go look at my post about this "my bucking lightning and my dealer" it tells you the problem ford diagnosed mine as. same thing as you described.

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Rusty McLain 99 Red Lightning w/ cd changer and towing package,superchip,and PSP Filter and a red 94' lightning.
99' 1/8 mile 8.76 @ 81.6mph

 

Rusty,

I read your post and checked my plugs (only pulled 4 because they are a bi**h to get to) and that isn't my problem.

I talked to Sal and he's pretty confident he knows what the problem is. It seems that some trucks run a bit leaner than others at cruise or light throttle. The aggresive spark curve of the performance program combined with the slightly lean condition causes a sensation not unlike having a trailer hooked up to the truck. (exactly what mine felt like)

Sal's sending out a reburn with a few degrees taken out in the cruise mode as well as some tweeks to the shift firmness.

Thanks Sal.

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Mark Whatman
mwhatman@worldnet.att.net

• 99.5 White Lightning (PSP Filter & Chip)
• 99 Buell S3 Thunderbolt (not stock!)
• 98 F-150 Lariat (Flowmaster)
• 96 26' Velocity Offshore Race Boat (far from stock!!!)

 

Mark,

Guess I should give Sal a call. As I mentioned in an e-mail to you a few minutes ago, that's exactly what mine is doing too. And, your fix sounds exactly like what should be done to my chip.

Will the tweaks mean any less WOT performance? Right now, At full power on the chip it runs like it was just launched from "Pad 39A" over at the Cape and I wouldn't want to change that by too much.


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Mike Philpott
Orlando, FL
'99.5 Black Lightning
SVT #2190 - Build Date 6/9/99
NLOC #361
6 CD Changer, Class 3 Hitch, A.R.E. LSII Lid, BedRug Liner, Invinca-Shield/3M Scotchcal protective film, Wyldman's Clear Lexan Fog Light Covers, 16% Window Tint, LoJack, Val-1, Sal's PSP Chip & Air Filter Kit

 

Misfiring plugs anyone?

Could that be the problem?