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04-01-2024, 05:57 PM
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#1 |
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Registered User
Join Date: May 2017
Location: Seatac, wa
Posts: 172
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rpm gauge jumping
When i use my turn signal the rpm needle moves at the pace of the turn signal
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04-02-2024, 06:26 AM
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#2 |
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Special Order
  
Join Date: Nov 2004
Location: Mt Airy, MD
Posts: 85,852
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Re: rpm gauge jumping
My W.A.G is either the cluster isn't well grounded or the circuit board may have a breech. Is it the factory in-dash tach?
__________________
"BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~ |
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04-02-2024, 08:23 AM
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#3 |
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Senior Member
 
Join Date: Nov 2018
Location: Waterford California
Posts: 2,591
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Re: rpm gauge jumping
I'm with Special K..........90% of electrical issues are grounding problems.
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04-02-2024, 01:52 PM
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#4 |
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State of Confusion!
Join Date: Jul 2002
Location: Gulfport, MS USA
Posts: 47,083
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Re: rpm gauge jumping
 x2
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Bill 1970 Chevy Custom/10 LWB Fleetside 2010 Toyota Tacoma PreRunner SR5 Double Cab - DD Member of Louisiana Classic Truck Club (LCTC) Bill's Gallery Life isn't tied with a bow, but it's still a gift. Live simply. Love generously. Care deeply. Speak kindly. Leave the rest to God! |
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04-02-2024, 01:57 PM
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#5 |
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Senior Member
Join Date: Dec 2009
Location: TN.
Posts: 8,320
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Re: rpm gauge jumping
If it is grounded in factory location ,
Here is a link to a picture of the ground clip in Post#6. Thanks to LocDoc.  Link: https://67-72chevytrucks.com/vboard/...ht=ground+clip
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________________________________________________________________________________________ ____________________________________________ 84 Chevy K-20 63 Impala (my high school car) http://67-72chevytrucks.com/vboard/s...Crew Cab Build |
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