tranny shudder

Reply Subscribe

Thread Tools

Search this Thread

Jan 30, 2006 | 11:27 PM

goldie

Thread Starter

New User

Joined: Jan 2006

Posts: 4

Likes: 0

tranny shudder

I have a 2000 f-150 4x4 full load 4.6v8 auto and today when accelerating at about 25mph 1700 rpm in second gear(just putting around) my truck seemed to lightly shudder, no noise just almost like a quick vibration. I took my foot off the gas and it went away, back on the gas and it came back, after that I couldn't make it do it again. When i got home(only a couple of minutes away), I checked the tranny fluid(which was just below add), shut the truck off, waited 10 min and checked the oil which was just above add. Does anybody know what could cause this.
Thanks, Nick

Jan 31, 2006 | 06:28 AM

IB Tim

FTE Leadership Emeritus

Joined: Jan 2003

Posts: 161,999

Likes: 75

From: 3rd Rock

...Welcome to Ford Truck Enthusiasts!

We are happy you have chosen the best source for Fords.

Enjoy FTE....and
JOIN CLUB FTE -SUPPORT THE FORUMS!
…..See you on the boards.

Jan 31, 2006 | 11:12 AM

BLK94F150

Postmaster

Joined: Sep 2002

Posts: 3,077

Likes: 1

From: None of your business

How many miles are on the truck? How long since the tranny has been serviced? Sounds like a total fluid change might be the cure.

Mike

Jan 31, 2006 | 11:29 AM

slc10844

Posting Guru

Joined: Oct 2003

Posts: 1,332

Likes: 4

From: Baltimore

Does it seem to be a transmission issue or could it be the engine, like a misfire?

Jan 31, 2006 | 12:55 PM

stein78

Senior User

Joined: Nov 2003

Posts: 116

Likes: 0

From: Naperville, IL

Sounds like the torque converter is slipping.

Jan 31, 2006 | 03:48 PM

slc10844

Posting Guru

Joined: Oct 2003

Posts: 1,332

Likes: 4

From: Baltimore

I may be wrong, but I don't think the torque converter locks up until 3rd gear.

Feb 7, 2006 | 12:02 AM

goldie

Thread Starter

New User

Joined: Jan 2006

Posts: 4

Likes: 0

sorry for the delay, as it turns out there was a misfire on cyl#1, not the coilpack but a spark plug(changed 15,000 miles agoto bosch platinum). The spark plug looked good, gap was good, a little wear on the tab, then I noticed a small divit in the center of the electrode, replaced the plug and now it runs great. I don't understand why it was only missing under load. thanks for the replies
Nick