08 Denali 6.2 electrical issues
February 15th, 2019, 4:27 PM
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08 Denali 6.2 electrical issues
hey guys new member here and need some help with the wife’s Yukon Denali so here’s the deal right now it has an intermittent no crank(run through a few on off cycles it eventually starts) when it does start gauges bounce, speedometer does not move at all, and the gear indicator does not show current gear selected, when driving vehicle does not shift, and the rear hatch and window do not open. Attempted to hook a scanner to it and it will not communicate (it gets power and turns on) checked Fuses (under hood and passanger compartment) all are good. Thanks in advance
February 18th, 2019, 2:47 AM
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hey guys new member here and need some help with the wife’s Yukon Denali so here’s the deal right now it has an intermittent no crank(run through a few on off cycles it eventually starts) when it does start gauges bounce, speedometer does not move at all, and the gear indicator does not show current gear selected, when driving vehicle does not shift, and the rear hatch and window do not open. Attempted to hook a scanner to it and it will not communicate (it gets power and turns on) checked Fuses (under hood and passanger compartment) all are good. Thanks in advance
for difference between trickle charger and battery tender click here
for difference between trickle charger and battery tender click here
How old is your battery? It might be weak, or your alternator is not charging enough.
You should check the voltage on the battery posts. It should read at least 12V when engine not running, andabove 14V with engine running.
Hope that hepls!
February 18th, 2019, 2:04 PM
#3
Sounds like bad connection. Broken wire, loose ground etc.