Question about 1990 Mercury Grand Marquis

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Odometer gears How to remove/replace odometer gears once the speedometer cluster is removed. Thanks...Fred

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It isnt easy!,the whole unit is peened,and factory assembled,it's built to be non-servicable,get another unit from a junk yard,I have fixed many,and it's a LOT of work!!. in your case it may be simple as replacing the "drive shaft"(it has a worm gear on it).
good luck!!

Posted on Dec 25, 2008

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SOURCE: 1990 mercury grand marquis odometer gears

ther isnt a "manual"for this. see my reply to your other post. I hope it helps you. Ive done this kind of repair many times!!

Posted on Dec 25, 2008

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Posted on Jan 02, 2017

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Volvo gle 850 1996


After I bought my '96 850, I found it had the same problem. In my case the speedometer worked fine, but not the odometer. A little research on the internet revealed that it's a common problem with these models.

There's a motor that drives the odometer separately from the speedometer, and the weak link in the chain is a tiny gear that turns the odometer when the motor runs. That gear is easily broken and even one missing tooth will disable your odometer.

The fix is relatively straight-forward, but requires you to remove the instrument panel and disassemble it in order to get to the motor housing and the broken gear. You won't have any trouble finding replacement parts on eBay that are much better made and will last you the rest of the life of the car. The difficulty level on this is about medium, but be careful when you've got the instrument panel disassembled; I wasn't cautious enough and ended up with a couple of my indicators out of alignment; my tachometer read zero when it was idling, and my fuel gauge only went up to 17 gallons when it was full, so I had to take it all apart again to reposition the gauges to get them to read correctly.

Jun 04, 2014 | 1996 Volvo 850

1 Answer

Speedometerworks, but odometer/tripmeter stopped


The odometer/trip meter work together via a IC and pulse motor. I just replaced the Instrument cluster in my 94 Corolla DX. I purchased a used cluster that had 230,000 miles showing( mine was 199,000). It' a "plug and play" system, electronic analog. The cluster I purchased the trip meter didn't function, I removed the speedometer from the cluster and applied some silicone spray to the plastic gears and now it's working, (the plastic gears are very fragile and after many miles and years they are prone to breakage). If you are lucky this might be a solution, If not buy a used instrument cluster and install it yourself and hope for the best (used). I didn't have a tachometer on my original cluster so I purchased a cluster with a Tach. The 94 DX and LE should be "plug and play",not sure about the CE. The change is quite simple tow screws remove the bezel, 4 screws remove the cluster, unpluy the connectors, 2 white 1 blue.The cluster was $55.00

May 17, 2012 | 1994 Toyota Corolla

1 Answer

How to change a 2003 chevy trailblazer speedometer cluster?


You can remove the bezel around the cluster, it justs pulls off. The cluster is held in by 4 7mm bolts. Remove cluster and connector. Reinstall. However the cluster will need to be reprogrammed and the odometer programmed with the correct mileage at a dealership. Its probably best you just let them replace and reprogram it all at once.

Apr 11, 2011 | Chevrolet TrailBlazer EXT Cars & Trucks

3 Answers

The odometer does not work. changed it out with other unit and still does not work. appears to be electrical or computer? speedo works fine


Speedometer, Odometer and Trip Odometer are driven by same circuit. Failure of Odometer and Trip Odometer suggests a circuit board fault on the instrument panel. A used instrument panel or repair of yours is probabaly best options.

The speedometer should malfunction too if speed sensor failed. If only the odometer and trip meter stopped working, it will most likely be the cluster itself. I had this problem, but since took the cluster out and give it a nice tap/knock, put it back in and it has worked since. Keep in mind that the VSS provides signal input to circuit that drives speedometer.

Instrument panel removal is not hard if you follow the shop manual instructions for trim removal. I've done it once on my 2.5TL to replace the D4 light bulb. PM your email address and I'll forward the pdf files for the procedure. The Vehicle Speed Sensor goes into the differential, and is what makes your speedometer and odometers work. If that fails, then your D4 light should start flashing, and either the speedometer will be bouncy or not work at all. Perhaps he forgot that 1Gs have a differential, so he said the tranny, but it's in the diff.

Hope helps.

Jun 14, 2010 | 1996 Acura TL Series

1 Answer

Odometer does not work, but speedometer does work


i actually have this exact problem with my 92, to get the cluster set out is a pain in the ***, but i will try to explain..
first, there are 4-5 screws at the top of the fake wood trim above the guage set, remove them, then remove the top panel, then you'll find another 4-5 screws (top and bot sides) holding the lower piece on, remove them.
once you have the cluser set exposed, remove the 5-6 screws holding it in place, you'll be able to pull the set out, make sure to disconnect all the wires going to the cluseter set, once you have it out, you will need to disaemble it.
if its a needle guage set (like mine) you'll find that each instrument is a "pod" which can be removed, there are 3 - 4 torx screws holding them inplace, simply remove the screws, then pull (fairly hard) and the speedometer should pop out..

Nov 19, 2009 | 1992 Chrysler New Yorker

1 Answer

Odometer doesn't work, is it something i can fix?


More than likely your lead gear for your odometer is spinning on the shaft and not advancing the odometer or tripometer. You will need to remove the speedometer from the cluster to verify. once the speedometer is removed you will find a metal/gray colored gear next to the odometer digits. Take a small flat tip screw driver while holding the odometer digits in place with your finger, try and spin the gear. If the gear spins this is your problem. OdometerGears.com has the three different sizes of gear for you to fix it.

May 27, 2009 | 1985 Volkswagen Jetta

1 Answer

1989 Audi 500 se Automatic - Speedomoter


The gear on the odometer is stripped. Quite the common problem with Audi's of this vintage. Parts available at: http://speedometergears.com/

To fix, you have to pull the gauge cluster, remove the speedo from the cluster, then remove the odometer from the speedo. The gear replacement is pretty easy once you get it all apart.

Mar 26, 2009 | 1989 Audi 200

2 Answers

1995 Cougar Odometer/trip-meter inop


Section 13-01: Instrument Cluster—Conventional 1995 Thunderbird, Cougar Workshop Manual REMOVAL AND INSTALLATION Instrument Cluster Removal and Installation
  1. Disconnect battery ground cable (14301) .
  1. Remove screws holding instrument panel reinforcement (017A28) .
  1. Remove screws holding instrument panel lower shield (045G02) .
  1. Remove fasteners holding steering wheel column as outlined in Section 11-04 . Gently lower steering column.
  1. Remove fasteners holding the instrument panel finish panel (044D70) and gently pry off.



  1. Remove four instrument cluster retaining screws. (Do not remove screws from the instrument cluster main lens (10887) and instrument cluster mask (10890) ).
  1. Slide the instrument cluster (10849) to the right of the instrument panel opening and unhook the instrument panel harness from the back of the instrument cluster .
  1. Remove the instrument cluster from the instrument panel (04320) .
-----------------------
Speedometer/Odometer Federal law requires that the odometer in any replacement speedometer (17255) must register the same mileage as that registered in the removed speedometer . Since the speedometer mileage cannot be reset on this unit, affix odometer sticker to driver's door pillar and record original vehicle mileage. Removal
  1. Disconnect battery ground cable (14301) .
  1. Remove the instrument cluster (10849) as outlined.
  1. Remove seven screws retaining the instrument cluster mask (10890) and instrument cluster main lens (10887) .
  1. Remove speedometer assembly.
Installation
  1. Position the speedometer assembly to the instrument cluster back plate (10848) and install.
  1. Position the instrument cluster mask and instrument cluster main lens to the instrument cluster back plate and install the seven retaining screws.
  1. Install the instrument cluster as outlined.
  1. Connect battery ground cable and check the operation of the speedometer .
please rate if this helps

Mar 24, 2009 | 1994 Mercury Cougar

1 Answer

1995 honda accord speedometer and odometer not working


Sounds like either your speedometer cable, your nylon gear on the side of the tranny where the cable ties in, or the odometer itself is shot. One of those three will set you straight. If you are able, remove the cluster, take the cable off the back, and pull it out of the sheath. You will see if its broken or not from there. If not, slide it back into the sheath, then you have to find out where the sheath meets the tranny, and pull it off of there. Then, you can get someone else to watch the speedo as you turn the cable from the bottom. If it works, great, if not, then its your cluster/odometer/speedo. If it does work, the small gear in the transmission is shot.

Feb 13, 2009 | 1995 Honda Accord

1 Answer

1990 mercury grand marquis odometer gears


ther isnt a "manual"for this. see my reply to your other post. I hope it helps you. Ive done this kind of repair many times!!

Aug 30, 2008 | 1990 Mercury Grand Marquis

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