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rpm gauge

Printed From: West Coast Fieros
Category: Technical Topics Forum
Forum Name: Technical Questions and Discussions
Forum Description: Got a technical question about your fiero? ask it here.
URL: http://www.westcoastfieros.com/forum/forum_posts.asp?TID=225
Printed Date: 22 November 2024 at 1:30am
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Topic: rpm gauge

Posted By: Guests
Subject: rpm gauge
Date Posted: 05 June 2007 at 12:44am

i have a question about my rpm gauge, i tried to do a burnout one day it didint work and liek the car jsu took off realy fast but ever sicne then, my rpm gauge the needle isnt smooth it like shakes kidna thing like it wont go up smoth but kidna jus jump lil by lil i dont know wat it is plz help

Replies:

Posted By: Capt Fiero
Date Posted: 05 June 2007 at 5:57am

Your tach filter is probably shot. Or it is a sign that either your Coil, Pickup Coil or ignition module is on its way out. All of the above can cause a jumpy tach.

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Capt Fiero
88 Fiero GT 5spd V6
Eight Fifty Seven GT V8 5spd.

Posted By: Guests
Date Posted: 05 June 2007 at 11:10am

how much do u think each of those items woudl cost?

Posted By: Capt Fiero
Date Posted: 05 June 2007 at 5:12pm

Coil 100 bucks for an MSD unit (60 for an oem)

Pickup Coil, 12 bucks

Ignition Module $91 from Lordco (Delco part)

Tach Filter about 15 from Rodneydickman.com

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Capt Fiero
88 Fiero GT 5spd V6
Eight Fifty Seven GT V8 5spd.

Posted By: Guests
Date Posted: 06 June 2007 at 3:45pm

thnks guys