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Electrical problem with Escalade 2007,,, my car got crazy

7K views 3 replies 3 participants last post by  Escalade0824 
#1 ·
my problem started with the negative cable connected between the negative battery terminal and the engine body. at that time (almost five months ago) I have cleaned and scrubbed the cable and well reconnected the wire to the engine body and the problem disappeared after that for two/three months.
now, the problem back with almost same electrical problems:
-now the dash lights and meters flashing crazy from time to time with a message (warning message) “service suspension…” or “airbag…” or “tiers pressure” or …, with alarm sound tun tun tun ...
-and sometimes the radio goes silent (no voice) while the radio still running! I turn the volume to “Mute mode” and back to un-mute, so the voice comes back to normal.
-also, the windows (passenger side and rear sides) sometimes suspend and do not open or close from the driver’s side buttons “buttons board” only! and sometimes these windows open normally but do not close directly, it close intermittently!
-sometimes the driver’s side buttons “buttons board” turns off (no light) and if I press and button it back on.
-also, the auto Pedal (that opens and closes with the driver door) sometimes being crazy, opens and sometimes opens normally and sometimes not.
the battery was changed brand new (ACDelco 48-xxx) supposed to be 70 amp.
I have went to many electrical specialists with no avail. No one could find or fix my car problem!
Hope to find answers here and solve my problem.

Thank in advanced
 
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#2 ·
Well I can tell you from years of living above the rust belt that corrosion doesnt stop at just the cable ends that you cleaned. Im suspecting that cleaning it only bought you time and the copper under the insulation thats not visible to you has corroded as well. I would replace the negative and positive cables all together since they've both been exposed to same elements and are manufactured with the same quality copper. Some stereo shops are great at fabing new battery cables if you cant order replacement (quality will be 3x better) but Im sure RockAuto has them. Dont forget to look at the ground strap on driver side,not sure of its function but it's there for a reason.
 
#3 ·
thanks "2muchspl" for your reply. appreciate it

i have replaced the old battery cable with new good one. also, i have connected a new cable between the engine and the car body (parallel with the ground strap on driver side).
three days already testing the car and unfortunately the problem still there with no changes!


any suggestions?
 
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