tach,speedometer,not working,indicator for shift,will not shift tach, you can take a mileage correction tool to adjust, such as the Tacho Pro 2008 Plus Universal Dash Programmer
Question about 2003 Sonoma Extended Cab
...when sitting idling. changed out fuel pump,fuel filter.distributor and computer Generally eratic tacho fluctuations as a result of the high tension side of the coil firing into the low tension
...Tacho Pro ...
Question about 1989 Sierra
the rev counter is not working, is it electronic or a cable 1989 3l aut glx sierra It should be electric but check to see if there is a cable from the engine to the dash . Tachos (rev counter) ...
why is the tack jumping at idil.and engine stumbling? tachos get their signal wire from the ignition (coil, ignition control module ) it the miss is in tune with the tacho movement then there may be a
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