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10-17-2017, 09:45 AM
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#1 |
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Registered User
Join Date: May 2007
Location: nepa
Posts: 745
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MSD box tach issue
I've had an msd 6al box on my truck for 8yrs now and all of a sudden my tach is going screwy. Its an auto meter gauge and I have it hooked up to the tach out put on the 6al box. it worked fine til about a week ago. when I start the truck up its fine. once its warm the tach starts going screwy. Is my 6al box going or is it just the tach out put? anyone run into this issue?
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10-17-2017, 06:52 PM
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#2 |
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Senior Member
 
Join Date: Feb 2010
Location: Falls City, Nebraska "100 Miles From Nowhere"
Posts: 2,219
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Re: MSD box tach issue
Quite a bit of write ups on the same issue. Seems a tach filter may be necessary? https://www.google.com/search?domain...D%3A1%3B&hl=en Might try a known good tach and double check the ground wire.
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Michael of the clan Hill, "Two Seventy Two's" 71 1-ton Dually 350 4-Speed 71 C/50 Grain Truck, 350 Split-Axle 4-Speed 02 3/4 ton Express 14 Indian Chief Vintage 1952 Ford 8N, "Only Ford Allowed On The Property"  "Be American, Buy American" 
Last edited by Ironangel; 10-17-2017 at 06:59 PM. |
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