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DsrtJeeper · 02-04-2006, 10:51 PM

I've searched here and the threads I found do not quite match my problem. My speedo needle spikes backwards about 10 MPH at 70. I have to be doing 70 or higher for it to start jumping around. Still think it's the VSS? Thanks!

Steve83 · 02-05-2006, 12:27 AM

Have you checked ANYTHING?

Or are you just fishing for wild guesses?

95_G&W_XLT · 02-05-2006, 12:33 AM

I have read something about the speedos causing that problem. There are other possibilities...VSS...PSOM...If the tranny is shifting OK(auto) and no ck eng light, Most likely speedo. VSS would also likely set off the ABS light, same for PSOM, IIRC.

DsrtJeeper · 02-05-2006, 11:55 AM

I just bought the Bronco and have no scan tool to check for codes. There is no check engine light and the tranny seems to be shifting fine, but I have nothing to compare to. I'll just bring it to the garage and get a professional opinion. Thanks.

Lurch · 02-05-2006, 01:21 PM

http://fordfuelinjection.com/?p=13 might help ya out. IDKnow

**monkeyhouse** · 02-05-2006, 01:27 PM

Quote:

Originally Posted by DsrtJeeper

I'll just bring it to the garage and get a professional opinion. Thanks.

i would ask around here some more before i spend an arm and a leg at a shop.

DsrtJeeper · 02-05-2006, 01:28 PM

Quote:

Originally Posted by Lurch

http://fordfuelinjection.com/?p=13 might help ya out. IDKnow

Now that's what I'm talking about! Help without an attitude. Thanks Lurch!

Bighibbi · 02-05-2006, 04:10 PM

Take off the rear diff cover. Check the Ring Tone gear. It is located on the left hand side of the ring gear. Look to see if any of the teeth have been notched (from debris floating around in the diff.) Usually a spider gear. If the ring tone gear has been notched, it will need to be replaced to fix your speedo reading. Jack it up and rotate the tires to look for the teeth to be notched/broken/bent...

DsrtJeeper · 02-05-2006, 04:20 PM

Quote:

Originally Posted by Bighibbi

Take off the rear diff cover. Check the Ring Tone gear. It is located on the left hand side of the ring gear. Look to see if any of the teeth have been notched (from debris floating around in the diff.) Usually a spider gear. If the ring tone gear has been notched, it will need to be replaced to fix your speedo reading. Jack it up and rotate the tires to look for the teeth to be notched/broken/bent...

Thanks and that makes sense as I'm having rear diff issues. I'll be rebuilding rear this week. Previous owner let rear diff run low on fluid.

**waltman** · 02-05-2006, 06:45 PM

I highly doubt it's the ring tone gear, I would suspect the sensor before that. A few silver particles in the oil wont affect anything. If it is suggested that a tooth broke and then damaged the teeth on the ring tone gear, then there would be other more serious issues going on. If I were you I would diagnose the sensor.

DsrtJeeper · 02-05-2006, 07:01 PM

Quote:

Originally Posted by waltman

I highly doubt it's the ring tone gear, I would suspect the sensor before that. A few silver particles in the oil wont affect anything. If it is suggested that a tooth broke and then damaged the teeth on the ring tone gear, then there would be other more serious issues going on. If I were you I would diagnose the sensor.

Thanks. I'll have the rearend apart this week and I'll just have my buddy run a scan on it. I just thought a check engine light would be triggered if the VSS was bad. I'm hoping for the best.

**waltman** · 02-05-2006, 07:10 PM

You don't have to rip apart your rear end to check the sensor, it is located on top of the pumpkin.

DsrtJeeper · 02-05-2006, 07:15 PM

Quote:

Originally Posted by waltman

You don't have to rip apart your rear end to check the sensor, it is located on top of the pumpkin.

Thanks for the pic, but I really do need to tear into the rear diff. I posted earlier that the previous owner ran it low on fluid amd it's just a howlin'! I bought a new install kit and an Auburn limited slip to install this week. Hopefully the ring and pinion is fine.

Steve83 · 02-06-2006, 12:31 AM

Quote:

Originally Posted by DsrtJeeper

I posted earlier that the previous owner ran it low on fluid amd it's just a howlin'!

That's exactly what causes "attitudes"...

If you had either included that little tidbit of info in your first post, or (even better) posted this question in the old thread, it would have saved us all a LOT of time & typing.

There's a reason they're called "threads".

DsrtJeeper · 02-06-2006, 12:46 AM

Quote:

Originally Posted by Steve83

That's exactly what causes "attitudes"...

If you had either included that little tidbit of info in your first post, or (even better) posted this question in the old thread, it would have saved us all a LOT of time & typing.

There's a reason they're called "threads".

I don't know what your problem is, but you've taken a tone with me since I first posted. I'm new here and you haven't given me one iotta of a chance here. You are the only one in this thread with an attitude. I posted best as I knew and I made no claim to be a pro hence my questions here.

I had'nt even thought about the rearend problem relating to the speedo acting up until "Bighibbi" posted. At least the others have tried to be helpful. What have you contributed? All I asked is if anyone else had experienced my same problem. If you don't have anything good to say; keep it to yourself.

Also; I can do without your demeaning attitude. I wasn't born yesterday and I'm not some punk kid. There's always one that has to jump in and add his negativety.

Steve83 · 02-06-2006, 01:41 AM

Oh, well. It seems to happen about once every few months. I get under someone's skin like this. Maybe it's me....

Maybe it's not...

Reading back, I don't see anything I'd categorize as "demeaning", unless you take the "

" smiley seriously. Nothing I'd say is "negative", either. Certainly there's some "constructive criticism"...

But you admit that you're new, so you're not familiar with how we communicate here, and if you re-read my posts with a slight shift in your perspective, I think you'll see I'm trying to get info out of you - not shut you (or anyone else) up. And I'm also trying to point out ways to reduce the time you have to wait for a solution to your problem. ...both in this thread & which ever other one(s) you're talking about. (I don't really notice who's posting in all the threads - I bounce between 4-8 BBSs at a time, so it's impossible to keep track.)

If something I wrote looks like a personal attack, consider that I MIGHT not have meant it that way, and that YOUR attitude also has SOME effect on how you perceive what I wrote.

Although I rarely even read threads asking for me in the subject line, I promise that I won't reply to you if you put in something like "Steve83 - I don't care what you think." in the first post of your future threads.

PS
I think the

smiley is friggin' hilarious!

PPS
You think I've got "attitude"?

You should search up some of Fireguy50's old posts!

He'd lay the SMACK down in a heartbeat.

02-04-2006, 10:51 PM	#1
DsrtJeeper Registered User Join Date: Feb 2006 Location: AZ Posts: 44 iTrader: (0) Bronco Info: '95 XLT, 351 4" Rancho lift DsrtJeepers Garage	Weird speedo I've searched here and the threads I found do not quite match my problem. My speedo needle spikes backwards about 10 MPH at 70. I have to be doing 70 or higher for it to start jumping around. Still think it's the VSS? Thanks!

02-05-2006, 12:27 AM	#2
Steve83 Registered User Join Date: Jul 2003 Location: Memphis, TN Posts: 23,936 iTrader: (91) Bronco Info: '83 Custom w/'95 4.9L & EB paint Steve83s Garage	Have you checked ANYTHING? Or are you just fishing for wild guesses? __________________ Walk softly & carry a BIG SIX ! ! ! . . . '99 CV RIP

02-05-2006, 12:33 AM	#3
95_G&W_XLT Registered User Join Date: Apr 2004 Location: Clarksville, TN Posts: 618 iTrader: (0) Bronco Info: 95 Green and White XLT 5.8 dual shocks, Edelbrock intake, BBK Throttle Body..And now a 3" exhaust!! 95_G&W_XLTs Garage	I have read something about the speedos causing that problem. There are other possibilities...VSS...PSOM...If the tranny is shifting OK(auto) and no ck eng light, Most likely speedo. VSS would also likely set off the ABS light, same for PSOM, IIRC. __________________ My Supermotors Profile MySpaceProfile I love the smell of napalm in the morning. It's got that smell...The smell of victory. ROCK ON!

02-05-2006, 04:10 PM	#8
Bighibbi Registered User Join Date: Aug 2004 Location: Corvallis Posts: 159 iTrader: (0) Bronco Info: 93 351 E4OD w/200 k miles 6inch lift, 35's LS 4:56 gears 3inch single exhaust...many lil touches. Bighibbis Garage	Take off the rear diff cover. Check the Ring Tone gear. It is located on the left hand side of the ring gear. Look to see if any of the teeth have been notched (from debris floating around in the diff.) Usually a spider gear. If the ring tone gear has been notched, it will need to be replaced to fix your speedo reading. Jack it up and rotate the tires to look for the teeth to be notched/broken/bent... __________________ Winners listen, losers bitch.

02-05-2006, 06:45 PM	#10
waltman Lick my balls Join Date: Oct 2005 Location: far from reality Posts: 12,823 iTrader: (1) Bronco Info: 1989 bronco, 3" suspension lift, rebuilt 302 with cam, 33' big-os Blog Entries: 1 waltmans Garage	I highly doubt it's the ring tone gear, I would suspect the sensor before that. A few silver particles in the oil wont affect anything. If it is suggested that a tooth broke and then damaged the teeth on the ring tone gear, then there would be other more serious issues going on. If I were you I would diagnose the sensor. __________________ there is no such thing as stupid questions, just stupid people. Only that in you which is me can hear what I'm saying No matter where you go or what you do, you live your entire life within the confines of your head I don't suffer from insanity; I enjoy every minute of it

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Weird speedo

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02-05-2006, 11:55 AM	#4
DsrtJeeper Registered User Join Date: Feb 2006 Location: AZ Posts: 44 iTrader: (0) Bronco Info: '95 XLT, 351 4" Rancho lift DsrtJeepers Garage	I just bought the Bronco and have no scan tool to check for codes. There is no check engine light and the tranny seems to be shifting fine, but I have nothing to compare to. I'll just bring it to the garage and get a professional opinion. Thanks.

02-05-2006, 01:21 PM	#5
Lurch Registered User Join Date: Dec 2005 Location: Duluth Minnesota Posts: 27 iTrader: (0) Bronco Info: 1987 5.0 EFI AOD 1356 BW Electronic shift transfercase Mile Marker manual hubs 160,000miles Lurchs Garage	http://fordfuelinjection.com/?p=13 might help ya out. IDKnow

02-05-2006, 07:10 PM	#12
waltman Lick my balls Join Date: Oct 2005 Location: far from reality Posts: 12,823 iTrader: (1) Bronco Info: 1989 bronco, 3" suspension lift, rebuilt 302 with cam, 33' big-os Blog Entries: 1 waltmans Garage	You don't have to rip apart your rear end to check the sensor, it is located on top of the pumpkin.

02-06-2006, 01:41 AM	#16
Steve83 Registered User Join Date: Jul 2003 Location: Memphis, TN Posts: 23,936 iTrader: (91) Bronco Info: '83 Custom w/'95 4.9L & EB paint Steve83s Garage	Oh, well. It seems to happen about once every few months. I get under someone's skin like this. Maybe it's me.... Maybe it's not... Reading back, I don't see anything I'd categorize as "demeaning", unless you take the "" smiley seriously. Nothing I'd say is "negative", either. Certainly there's some "constructive criticism"... But you admit that you're new, so you're not familiar with how we communicate here, and if you re-read my posts with a slight shift in your perspective, I think you'll see I'm trying to get info out of you - not shut you (or anyone else) up. And I'm also trying to point out ways to reduce the time you have to wait for a solution to your problem. ...both in this thread & which ever other one(s) you're talking about. (I don't really notice who's posting in all the threads - I bounce between 4-8 BBSs at a time, so it's impossible to keep track.) If something I wrote looks like a personal attack, consider that I MIGHT not have meant it that way, and that YOUR attitude also has SOME effect on how you perceive what I wrote. Although I rarely even read threads asking for me in the subject line, I promise that I won't reply to you if you put in something like "Steve83 - I don't care what you think." in the first post of your future threads. PS I think the smiley is friggin' hilarious! PPS You think I've got "attitude"? You should search up some of Fireguy50's old posts! He'd lay the SMACK down in a heartbeat.

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