1996 Geo Metro Speedometer failure

CHRIS0404

MEMBER
1996 GEO METRO
4 CYL
FWD
AUTOMATIC
106,000 MILES

Speedometer has failed suddenly along with odometer. Removed transmission cable. It appears OK. Never experienced symptoms of a squeaky cable or erratic speed readings before sudddn failure.

does this transmission have an electronic sensor?

If a gear has failed could this be in the tranny AND/OR the instrument cluster? What steps must I take to make repair? Is there a part in the tranny that the cable inserts into that may have failed? If so how can I remove and replace this part?

1 Reply

MERLIN2021

MECHANIC
17,250 POSTS

OVERHAUL - 5-SPEED -1996 Geo Metro
Page 1 of 1
SPEEDOMETER DRIVEN GEAR ASSEMBLY

Removal
Pull up speedometer cable boot. Remove speedometer case clip and disconnect speedometer cable from case. Remove bolt and speedometer driven gear case assembly.
Disassembly
Drive out spring pin and remove speedometer driven gear. See Fig. 2 . Hold driven gear case with camshaft sprocket holder and remove oil seal. Remove "O" ring.

Reassembly
Install oil seal with spring side down. Install speedometer driven gear into case and drive in spring pin. Check driven gear for smooth rotation. Install "O" ring.

Installation
Apply grease to "O" ring and install case assembly to transaxle. Install bolt and torque to 53 INCH lbs. (6 N.m). Connect cable and install clip and boot.
Fig. 2: Exploded View Of Speedometer Driven Gear Assembly
Courtesy of GENERAL MOTORS CORP.

8/28/2008