Author Topic: 71 challenger tacometer  (Read 716 times)

Offline norwayduster

  • Jr. Member
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  • Posts: 32
71 challenger tacometer
« on: July 20, 2018 - 05:39:47 AM »
Hi, the tac in my challenger dont show the correct rpm,
Somtimes it shows 2500rpm in 55mph
And orher times it shows 4000.
What could be the problem?
Tanx. John
1971 challenger convertible




Offline 70chall440

  • Sr. Resident
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  • Posts: 6484
Re: 71 challenger tacometer
« Reply #1 on: July 20, 2018 - 11:56:32 AM »
Most likely needs to be rebuilt.
Current Mopar
70 Challenger RT 440-6 EFI, 73 Cuda 416-6 EFI
05 Hemi Durango, 01 Ram 4x4, 14 Ram 2500 4X4, 10 PCP Challenger 6 spd RT, 01 Viper GTS ACR, 52 B3B w/330 Desoto Hemi, 70 Hemi RR (under const)
Past Mopars
9 x Challengers. AAR Cuda, 4 RR, 2 GTX, 4 Chargers, etc... (too many to list)