Truck has a bad shudder!!!!!

01-03-2002, 02:30 PM

Its a 2001 lightning
I was on the freeway yeserday and gave it a pretty good boost and got a major shudder vibration the whole time my foot was in it!!!!
It stopped immediatly after i let up just a tad and if i accelerate slowly it does not happen.
Olny happens at wot around 55-60 mph.
Will pull chip tonight,will it be ok to run my truck a day or so without it and my other mods still on hte truck??
It was a bad shudder vibration,it freaked me out!!!!
Well the chip is out and the shudder is even worse!
The truck runs fine and dandy at normal acceleration everthing looks and feels fine till you give it some gas and it shudders like a mofo every time now,it seems like it happens when it downshifts or something.
I have almost a half tank of this gas and its 93 so ill try to cruise it all out befor i get all freaked out!
My tech is gonna put it on a tester so maybe we will get something pointing in the right direction!!!
Any info appeciated!

------------------
2001 WHITE XXX LIGHTNING
BD 02-19-01 #1045 RD 02-26-01
JL diablo chip
JL 4# pulley,MOTORCRAFT belt
JDM filter kit
BASSANI headers and catbacks
NGKTR6 PLUGS
FRPP single blade throttle body
FRPP 2" drop all around
FORD HD trans pan

01-04-2002, 10:00 AM

I've had this problem twice. Once, it was a bad chip that fried the 'puter. The second time I think it was a coil pack.

01-04-2002, 10:41 AM

Maybe a driveshaft problem or loose exhaust pipes?

Dan

------------------
NLOC # 695-2001 Lightning, Confederate gray/silver, built on 04/25/01(a Wednesday-Yes!), bot/picked up on 05/08/01, dynojet nos.: rwhp--388.7, rwtq--467.9, best e/t 12.791 @ 106.59, 11/16/01, 4,760lbs., 15,505 miles

Made possible by: PSP, Johnny Lightning, JDM, LFP, & M/T.

01-04-2002, 10:42 AM

I posted a similar question and everyone believed it to be my stock muffler not able to handle the pressure. Should I check these other areas instead??

------------------
2000 Silver L
13.68@100.76mph, 100% STOCK with a 2.190 60'looking for improvement!

"how much can you really know about yourself if you've never been in a fight?" Tyler Durden

01-04-2002, 11:32 AM

This is a much more violent vibration,more like a shudder,and only at wot aceleration.
Its either the gas or a coil pack.
She goes back to the shop on monday!
DAMN DAMN DAMN DAMN DAMN DAMN!!!!!!!!!!

------------------
2001 WHITE XXX LIGHTNING
BD 02-19-01 #1045 RD 02-26-01
JL diablo chip
JL 4# pulley,MOTORCRAFT belt
JDM filter kit
BASSANI headers and catbacks
NGKTR6 PLUGS
FRPP single blade throttle body
FRPP 2" drop all around
FORD HD trans pan

01-04-2002, 12:26 PM

Change the fuel filter, I have no idea if this is the problem, but it helped me with a similar problem.

------------------
12.454 @ 109.49MPH on stock F1's

01-04-2002, 12:31 PM

Quote:

<font face="Verdana, Arial" size="2">Originally posted by FAT:
She goes back to the shop on monday!
DAMN DAMN DAMN DAMN DAMN DAMN!!!!!!!!!!

</font>

I'd rather run myslef over with my truck than take it back to my dealer. Actually, I'd rather run over my dealer.

------------------
2000 Silver L
13.68@100.76mph, 100% STOCK with a 2.190 60'looking for improvement!

"how much can you really know about yourself if you've never been in a fight?" Tyler Durden

01-04-2002, 12:49 PM

Check the plugs. #5 most of all. Mine did that when it hit drive once and O/D another time. The champion plugs I was trying failed in #5 cylinder.

------------------
Later,
Chuck
Member# 497
Black 00

Chuck's Lightning Page

01-03-2002, 02:30 PM	#1 (permalink)
FAT Guest Posts: n/a View this user's gallery iTrader: / %	Truck has a bad shudder!!!!! Its a 2001 lightning I was on the freeway yeserday and gave it a pretty good boost and got a major shudder vibration the whole time my foot was in it!!!! It stopped immediatly after i let up just a tad and if i accelerate slowly it does not happen. Olny happens at wot around 55-60 mph. Will pull chip tonight,will it be ok to run my truck a day or so without it and my other mods still on hte truck?? It was a bad shudder vibration,it freaked me out!!!! Well the chip is out and the shudder is even worse! The truck runs fine and dandy at normal acceleration everthing looks and feels fine till you give it some gas and it shudders like a mofo every time now,it seems like it happens when it downshifts or something. I have almost a half tank of this gas and its 93 so ill try to cruise it all out befor i get all freaked out! My tech is gonna put it on a tester so maybe we will get something pointing in the right direction!!! Any info appeciated! ------------------ 2001 WHITE XXX LIGHTNING BD 02-19-01 #1045 RD 02-26-01 JL diablo chip JL 4# pulley,MOTORCRAFT belt JDM filter kit BASSANI headers and catbacks NGKTR6 PLUGS FRPP single blade throttle body FRPP 2" drop all around FORD HD trans pan

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01-04-2002, 10:00 AM	#2 (permalink)
Nathan Guest Posts: n/a View this user's gallery iTrader: / %	I've had this problem twice. Once, it was a bad chip that fried the 'puter. The second time I think it was a coil pack.

01-04-2002, 10:41 AM	#3 (permalink)
LIGHTNINROD Guest Posts: n/a View this user's gallery iTrader: / %	Maybe a driveshaft problem or loose exhaust pipes? Dan ------------------ NLOC # 695-2001 Lightning, Confederate gray/silver, built on 04/25/01(a Wednesday-Yes!), bot/picked up on 05/08/01, dynojet nos.: rwhp--388.7, rwtq--467.9, best e/t 12.791 @ 106.59, 11/16/01, 4,760lbs., 15,505 miles Made possible by: PSP, Johnny Lightning, JDM, LFP, & M/T.

01-04-2002, 10:42 AM	#4 (permalink)
cobrayankee Guest Posts: n/a View this user's gallery iTrader: / %	I posted a similar question and everyone believed it to be my stock muffler not able to handle the pressure. Should I check these other areas instead?? ------------------ 2000 Silver L 13.68@100.76mph, 100% STOCK with a 2.190 60'looking for improvement! "how much can you really know about yourself if you've never been in a fight?" Tyler Durden

01-04-2002, 11:32 AM	#5 (permalink)
FAT Guest Posts: n/a View this user's gallery iTrader: / %	This is a much more violent vibration,more like a shudder,and only at wot aceleration. Its either the gas or a coil pack. She goes back to the shop on monday! DAMN DAMN DAMN DAMN DAMN DAMN!!!!!!!!!! ------------------ 2001 WHITE XXX LIGHTNING BD 02-19-01 #1045 RD 02-26-01 JL diablo chip JL 4# pulley,MOTORCRAFT belt JDM filter kit BASSANI headers and catbacks NGKTR6 PLUGS FRPP single blade throttle body FRPP 2" drop all around FORD HD trans pan

01-04-2002, 12:26 PM	#6 (permalink)
Don's Bolt Guest Posts: n/a View this user's gallery iTrader: / %	Change the fuel filter, I have no idea if this is the problem, but it helped me with a similar problem. ------------------ 12.454 @ 109.49MPH on stock F1's

01-04-2002, 12:49 PM	#8 (permalink)
LTNBOLT Guest Posts: n/a View this user's gallery iTrader: / %	Check the plugs. #5 most of all. Mine did that when it hit drive once and O/D another time. The champion plugs I was trying failed in #5 cylinder. ------------------ Later, Chuck Member# 497 Black 00 Chuck's Lightning Page