I have a 1990 LS400 and the instrument cluster is going wacky. First off the speedometer is reading 15 mph slower than actual speed. Also the indicator light that says there is a burned out tail light is on but all of the tail light bulbs are working. When I am driving the car and step on the brake pedal the brakes grab slightly and the "R" lights up on the shift light column and the dash light turns off. I am guessing I need to replace the instrument gauge cluster but would appreciate any input if anyone else has experienced this.
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Have you tried searching the forum? I see this is your first post..... You might want to post this in the actual LS400 thread and not the "Build" thread.
AKA "Dirty Mike"
(93 LS4) - 5spd swap, Megan coils, 95+ big brakes with Goodridge stainless brake lines. S&S Headers with a custom exhaust, Motegi Touge's 18x9F and 18x10R, Welded diff, and vortech/procharger coming soon..... Best 1/4 mile so far 14.9 @ 97