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In 1990 through 1992 General Motors used a different speedometer set up than the prior or later years for many Chevy, GMC, and other GM named brands. The circuit board that drives the speedometer& ...
How to perform a Voltage drop test(Post)This test checks for voltage being lost along a wire, or through a connection or switch. (see diagram below) Connect the positive lead of a Digital Voltmeter (DVM) to the end of the wire (or to one ...
How a signal filter can help your Tachometer read properly(Post)If your tachometer seems to have a bouncing needle, only seems to work in a small range, or floats on acceleration, a Tachometer Filter just may solve the problem. What the Tachometer circuit board d ...
General Motors VATS (Vehicle Anti-Theft System) wrong key, missing key, or erratic operation(Post)Restore starting on your GM when the VATS pellet key or reader circuit is the problem. Vehicle Won’t Start? Your GM’s VATS System Might Be the Reason If your GM uses the VATS (Vehicle Ant ...
Engine Noise Diagnostic Guide: Identifying Knocks, Clicks, and Taps in Classic GM V8s(Post)For classic GM and Pontiac owners, the engine often speaks before it breaks. Learning to "read" these sounds can be the difference between a simple bearing refresh and a catastrophic block failure.
Pontiac Fiero Speedometer Wiring and Troubleshooting Guide(Post)Pontiac Fiero Speedometer Wiring and Troubleshooting Guide The speedometer system in the Pontiac Fiero uses a combination of electronic components and wiring to accurately display vehicle speed. Unde ...
Trouble shooting the tachometer after the circuit board has been replaced.(Post)Tachometer Still Not Working After Replacing the Circuit Board? If the tachometer still is not working after replacing the circuit board, the problem may be somewhere else in the system. This guide p ...
How does a core deposit work when purchasing auto parts(Post)What is a Core? A Core is an old part that can be rebuilt or remanufactured. Here’s how the Core Deposit works: When you purchase a part, an additional Core deposit is paid at the time of pu ...
1972 - 2002 Pontiac Firebird (VIN Decoder) How to decode the VIN tag.(Post)How to decode the VIN tag on 1972-2002 Pontiac Firebird (VIN Decoder) 1972-80 FIREBIRD VIN First Digit Division: 1=General Motors Second Digit Series: S=Base Model W=Trans Am T=Espirit U= ...
How to Remove and Install a Pontiac Fiero Gauge Cluster(Post)To uninstall: Disconnect the negative (-) battery cable. Remove the rear cluster cover. Remove the front trim plate. Remove the steering column cover. Remove the cluster attaching screws, disconnec ...
Blog e-Articles(Page)Brief posts of information to help repair and maintain your Camaro, Firebird, Fiero, or other classic GM vehicle.
About(Page)About WestCoast AutoParts.com WestCoast AutoParts.com is the online store of WC Parts Source LLC. Founded in 2013, we evolved from GM Performance, a specialty parts business established in the e ...