Feels like driving on rumble strips under light accleration - FSB Forums
Register Home Forums Active Topics Photo Gallery All Albums Mark Forums Read Auto EscrowInsurance FSB Store
FullsizeBronco.com is the premier Ford Bronco Forum on the internet. Registered Users do not see the above ads.
Reply
 
Thread Tools Display Modes
Old 10-29-2009, 08:53 PM   #1
shawn1648
Registered User
 
Join Date: Jan 2009
Location: Maryland
Posts: 110
iTrader: (0)
Bronco Info: 1992 FSB 5.8L
Feels like driving on rumble strips under light accleration

No codes are showing up.

It feels like I am riding on rumble strips. If I floor it, it does not do it. Its A LOT worse at 1000-1500 rpm but I can feel it good up to 3000 rpm.

I checked the tran fluid level, it's good and it was flushed 6 months ago. I'm not exactly sure how to check the driveshaft u joints but I grabbed the driveshaft and tried to rotate it or move anything, its all tight except just a tiny bit of play when i rotate, maybe two millimeters.

What about rear end fluid?

I am leaking coolant from the hose at the bottom of the radiator where it connects to the engine as of last week. I've kept it topped off. I don't know how that would cause the shake.

I checked for vacuum leaks and all the hoses look good except the hose that runs to that black plastic box in front of the passneger headlight. The hose looks a little worn.
shawn1648 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 10-29-2009, 09:15 PM   #2
sackman9975
*~*~*~*~*~*~*~*
 
sackman9975's Avatar
 
Join Date: Dec 2007
Location: Livonia Michigan
Posts: 6,838
iTrader: (42)
Bronco Info: 1995 Eddie Bauer 357w, E303 cam on S/D, Warn premium hubs, 3 inch exhaust with flowmaster 40
That rumble strip feeling is coming from your trans. Read my blog about Lucas trans fix.

http://www.fullsizebronco.com/forum/blog.php?b=27
__________________


~ Scott ~

~E303 w/Flowmaster 40 & 3inch exhaust rumble ~ 213k & counting. Now my daily driver once again. ~
~ Bronco owner/Driver/Mechanic/Enthusiast for 23 years ~
sackman9975 is offline   Reply With Quote
Old 10-29-2009, 09:29 PM   #3
shawn1648
Registered User
 
Join Date: Jan 2009
Location: Maryland
Posts: 110
iTrader: (0)
Bronco Info: 1992 FSB 5.8L
Awesome! From everything I have been reading, it sounds like just what you said...in the trans, possibly TC shudder. I will try the lucas fix.

I just had the tranny flushed and filled less than 10,000 miles ago. I tow my fishing boat 3-6 days a week with it.

Does anyone know what the "TC check" is? From what I can find on here, I'm supposed to tap the brake and if it stops, its TC shudder. But will that work when the shudder only happens during acceleration?
shawn1648 is offline   Reply With Quote
Old 10-29-2009, 09:40 PM   #4
sackman9975
*~*~*~*~*~*~*~*
 
sackman9975's Avatar
 
Join Date: Dec 2007
Location: Livonia Michigan
Posts: 6,838
iTrader: (42)
Bronco Info: 1995 Eddie Bauer 357w, E303 cam on S/D, Warn premium hubs, 3 inch exhaust with flowmaster 40
Quote:
Originally Posted by shawn1648 View Post
Does anyone know what the "TC check" is? From what I can find on here, I'm supposed to tap the brake and if it stops, its TC shudder. But will that work when the shudder only happens during acceleration?
Your torque converter is a locking converter. Once its in OD, it locks to the engine. By pressing or tapping the brake while still on the gas, your RPM's should rise for a second because it unlocks the torque converter. That is how you test the lockup.
__________________


~ Scott ~

~E303 w/Flowmaster 40 & 3inch exhaust rumble ~ 213k & counting. Now my daily driver once again. ~
~ Bronco owner/Driver/Mechanic/Enthusiast for 23 years ~
sackman9975 is offline   Reply With Quote
Old 10-29-2009, 09:45 PM   #5
shawn1648
Registered User
 
Join Date: Jan 2009
Location: Maryland
Posts: 110
iTrader: (0)
Bronco Info: 1992 FSB 5.8L
Thank you. Can this be done in any gear at any speed? They OD part threw me off.
shawn1648 is offline   Reply With Quote
Old 10-29-2009, 09:47 PM   #6
sackman9975
*~*~*~*~*~*~*~*
 
sackman9975's Avatar
 
Join Date: Dec 2007
Location: Livonia Michigan
Posts: 6,838
iTrader: (42)
Bronco Info: 1995 Eddie Bauer 357w, E303 cam on S/D, Warn premium hubs, 3 inch exhaust with flowmaster 40
The torque converter doesn't lock "until" it hits OD. So get it moving past 40ish and when you feel OD kick in, tap the brake while still accelerating and watch your tach (if you have one).
__________________


~ Scott ~

~E303 w/Flowmaster 40 & 3inch exhaust rumble ~ 213k & counting. Now my daily driver once again. ~
~ Bronco owner/Driver/Mechanic/Enthusiast for 23 years ~
sackman9975 is offline   Reply With Quote
Old 10-29-2009, 09:47 PM   #7
SigEpBlue
Satyr of the Midwest
 
SigEpBlue's Avatar
 
Join Date: Nov 2005
Location: Ida & Grand Rapids, Michigan, a.k.a The Unemployment Capital of America
Posts: 17,757
iTrader: (2)
Bronco Info: 1993 EB, 5.8L, BIO0 MAF, GT40Ps, Mustang cam, GT40 Intake, Custom Headers, Moates QuarterHorse
Do it when you're above ~45mph, 3rd or 4th gear. DAMMIT!
__________________
SigEpBlue
Wheelin' across Michigan from Ida to Grand Rapids, baby!
Quote:
Nemo nisi per amicitiam cognoscitur -- No one learns except by friendship.
Quote:
Originally Posted by Adlai Stevenson
Isn't it conceivable to you that an intelligent person could harbor two opposing ideas in his mind?
SigEpBlue is offline   Reply With Quote
Old 10-29-2009, 09:49 PM   #8
sackman9975
*~*~*~*~*~*~*~*
 
sackman9975's Avatar
 
Join Date: Dec 2007
Location: Livonia Michigan
Posts: 6,838
iTrader: (42)
Bronco Info: 1995 Eddie Bauer 357w, E303 cam on S/D, Warn premium hubs, 3 inch exhaust with flowmaster 40
Quote:
Originally Posted by SigEpBlue View Post
Do it when you're above ~45mph, 3rd or 4th gear. DAMMIT!
Sig, it's suppose to lock in 3rd as well? Hmmm...... I'm gonna have to check that out.
__________________


~ Scott ~

~E303 w/Flowmaster 40 & 3inch exhaust rumble ~ 213k & counting. Now my daily driver once again. ~
~ Bronco owner/Driver/Mechanic/Enthusiast for 23 years ~
sackman9975 is offline   Reply With Quote
Old 10-29-2009, 09:50 PM   #9
paintballdude902
si vis pacem, para bellum
 
paintballdude902's Avatar
 
Join Date: Jul 2009
Location: hitch hiking north to the carolinas
Posts: 3,485
iTrader: (0)
Bronco Info: 1989 Incendiary Device XLT 5.0 32x11.50 AOD
OD is over drive you will need to be up at highway speed so your trans will shift you into overdrive (your top gear)
__________________
I'm willing to die trying to keep them; Are you willing to die trying to take them?
Quote:
Originally Posted by BRONCONUT View Post
I told my wife she would be more likely to leave before my bko.
USAF ballistically integrated tactical cargo handler

Quote:
Originally Posted by c-dub View Post
If I had to pick a lord and savior it would be John Moses Browning .
paintballdude902 is offline   Reply With Quote
Old 10-29-2009, 09:55 PM   #10
shawn1648
Registered User
 
Join Date: Jan 2009
Location: Maryland
Posts: 110
iTrader: (0)
Bronco Info: 1992 FSB 5.8L
Ok, I will test it on my ride home tonight.

Above 45mph...I'll try tapping the brake to see if my rpm's jump up. Should I try to lightly hold my foot on the brake just enought for the break light to go on and see if the shudder stops? Otherwise, just by tapping it, I won't be able to tell if the shudder stops.
shawn1648 is offline   Reply With Quote
Old 10-29-2009, 10:05 PM   #11
sackman9975
*~*~*~*~*~*~*~*
 
sackman9975's Avatar
 
Join Date: Dec 2007
Location: Livonia Michigan
Posts: 6,838
iTrader: (42)
Bronco Info: 1995 Eddie Bauer 357w, E303 cam on S/D, Warn premium hubs, 3 inch exhaust with flowmaster 40
The longer you have your foot on the brake, the longer it stays unlocked. Just remember to keep your foot on the gas at the same time.
__________________


~ Scott ~

~E303 w/Flowmaster 40 & 3inch exhaust rumble ~ 213k & counting. Now my daily driver once again. ~
~ Bronco owner/Driver/Mechanic/Enthusiast for 23 years ~
sackman9975 is offline   Reply With Quote
Old 10-29-2009, 10:54 PM   #12
SigEpBlue
Satyr of the Midwest
 
SigEpBlue's Avatar
 
Join Date: Nov 2005
Location: Ida & Grand Rapids, Michigan, a.k.a The Unemployment Capital of America
Posts: 17,757
iTrader: (2)
Bronco Info: 1993 EB, 5.8L, BIO0 MAF, GT40Ps, Mustang cam, GT40 Intake, Custom Headers, Moates QuarterHorse
Quote:
Originally Posted by sackman9975 View Post
Sig, it's suppose to lock in 3rd as well? Hmmm...... I'm gonna have to check that out.

Yup. It will lock in 2nd gear too, given enough speed. I have the functions here in Binary Editor.
__________________
SigEpBlue
Wheelin' across Michigan from Ida to Grand Rapids, baby!
Quote:
Nemo nisi per amicitiam cognoscitur -- No one learns except by friendship.
Quote:
Originally Posted by Adlai Stevenson
Isn't it conceivable to you that an intelligent person could harbor two opposing ideas in his mind?
SigEpBlue is offline   Reply With Quote
Old 10-30-2009, 06:46 AM   #13
sackman9975
*~*~*~*~*~*~*~*
 
sackman9975's Avatar
 
Join Date: Dec 2007
Location: Livonia Michigan
Posts: 6,838
iTrader: (42)
Bronco Info: 1995 Eddie Bauer 357w, E303 cam on S/D, Warn premium hubs, 3 inch exhaust with flowmaster 40
And enough speed for 2nd is?

I did a test this morning to confirm 2nd and 3rd. I was going 60 in 2nd, pushing just past the 4k mark. Tapped and held brakes, and the motor did not rev up. So does this mean it was locked, and continued to stay locked? Or does it mean, it never locked?

3rd gear does lock as I felt and seen the RPM's goes up. So the converter unlocked.

Thought this would be good info for this thread.
__________________


~ Scott ~

~E303 w/Flowmaster 40 & 3inch exhaust rumble ~ 213k & counting. Now my daily driver once again. ~
~ Bronco owner/Driver/Mechanic/Enthusiast for 23 years ~
sackman9975 is offline   Reply With Quote
Old 10-30-2009, 07:45 AM   #14
shawn1648
Registered User
 
Join Date: Jan 2009
Location: Maryland
Posts: 110
iTrader: (0)
Bronco Info: 1992 FSB 5.8L
I tested it. My rpm's did rise but the shudder did not go away, at least it didn't feel like it did. Lots is happening during this test. It almost feels like the truck isn't shifting when it should and the rpm's are staying ultra low around 1500rpm, but definitely feels like I'm on rumble strips. It goes away almost completely once I get over 60mph. I'm on my way to pick up some lucas trans fix.
shawn1648 is offline   Reply With Quote
Old 10-30-2009, 12:34 PM   #15
SigEpBlue
Satyr of the Midwest
 
SigEpBlue's Avatar
 
Join Date: Nov 2005
Location: Ida & Grand Rapids, Michigan, a.k.a The Unemployment Capital of America
Posts: 17,757
iTrader: (2)
Bronco Info: 1993 EB, 5.8L, BIO0 MAF, GT40Ps, Mustang cam, GT40 Intake, Custom Headers, Moates QuarterHorse
Quote:
Originally Posted by sackman9975 View Post
And enough speed for 2nd is?


Note that you have to have a rather large differential between TP_REL and VS. Tapping the brake while you're feathering the throttle in manual 2nd won't do it.
__________________
SigEpBlue
Wheelin' across Michigan from Ida to Grand Rapids, baby!
Quote:
Nemo nisi per amicitiam cognoscitur -- No one learns except by friendship.
Quote:
Originally Posted by Adlai Stevenson
Isn't it conceivable to you that an intelligent person could harbor two opposing ideas in his mind?
SigEpBlue is offline   Reply With Quote
Old 10-30-2009, 08:39 PM   #16
shawn1648
Registered User
 
Join Date: Jan 2009
Location: Maryland
Posts: 110
iTrader: (0)
Bronco Info: 1992 FSB 5.8L
lucas trans fix did not fix the problem.

the whole truck shudders but you can really see and feel it in the steering wheel.

I noticed a wah-wah-wah hollow repeating sound while driving on the highway, windows up. Sounded like tires out of round type sound (tires only have 10,000 miles on them and they are BFG Long Trails) but its not the tires.

There is a noise from underneath, sounds like a bird chirping. Didn't bother me before, but now I think it could be related.

Ujoints? Diff?
shawn1648 is offline   Reply With Quote
Old 10-30-2009, 09:35 PM   #17
treader
Registered User
 
treader's Avatar
 
Join Date: Aug 2009
Location: Chiefland, Florida
Posts: 586
iTrader: (4)
Bronco Info: '96 Bronco XLT, 5.0 liter
I think that the fact that you're really feeling it in the steering wheel, is telling you that there is a problem with a tire or wheel. Did you get down and feel the tires for a bubble/seperation and check to make sure the lug nuts were tight? Maybe you lost a wheel weight? Try moving the front tires to the rear to see if the change makes a difference.
treader is offline   Reply With Quote
Old 10-31-2009, 04:24 PM   #18
shawn1648
Registered User
 
Join Date: Jan 2009
Location: Maryland
Posts: 110
iTrader: (0)
Bronco Info: 1992 FSB 5.8L
Tires/wheels are good.

It's not the typical "feel it in the steering wheel" type that you feel when you have tire/wheel issues.

It sounds like it's in the driveline.
shawn1648 is offline   Reply With Quote
Old 10-31-2009, 04:57 PM   #19
RicardoJM
Registered User
 
RicardoJM's Avatar
 
Join Date: Oct 2006
Location: Centennial, CO
Posts: 160
iTrader: (1)
Bronco Info: 96 XL
Have you checked your rear drive shaft bolts? If they are loose it will give you that rolling on rumble strips effect. I've owned my 96 since new and a couple of years ago the bolts would occasionally come loose, I put a 1/2 wrench in the truck so we could tighten them. After a few rounds of that we put lock tight in the bolts and have been good. I still have the wrench in the truck just in case.
__________________
96 XL
Original Owner
RicardoJM is offline   Reply With Quote
Old 10-31-2009, 05:18 PM   #20
BigDawgz
Registered User
 
Join Date: Jan 2009
Posts: 28
iTrader: (0)
I had the same problem with my 93'. Changed the tranny fluid and it helped for a while, but the problem returned, and remained for the next 60,000 miles, until I got rid of it.
BigDawgz is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply

  FSB Forums > Bronco Discussions > 1980-'96 Bronco Tech


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -4. The time now is 07:58 PM.


2003-2009 FullSizeBronco.com. All rights reserved