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2001 GMC Yukon starting problems

Sent to Car Experts March 13, 2005 11:13 a.m.

2001 GMC Yukon with a new battery won’t hold a charge if the vehicle sit’s over night

Edited by Customer (name blocked for privacy) on March 13 2005 at 11:18am

Customer (name blocked for privacy)

Status: Closed Value: $10

Answer
March 13, 2005 12:46 p.m. (1 hour and 33 minutes later)

ACCEPTED

Something is staying on so your going to have to test for a draw. Use a digital ammeter. disconnect one battery cable and install the meter between the cable and the post. Now take a jumper wire and connect it to the cable and the terminal also. Close all the doors and shut off everything making sure you have access to the fuse box with triggering any power. Wait 5 minutes and with the meter turned on, remove the jumper wire. That will expire all the timers. Your meter should not read over 50ma. If it does, start pulling fuses one at a time untill the draw stops. That will be the circuit that's consuming power. Find out what that fuse supplies and locate the culprit. It could be a delay module or chime also.

Tech501 -- Auto Service Technician -- 96% Positive Feedback on 739 Car Accepts
38 years exp, ASE Mastertech with L1 Advanced Engine performance

Reply to Tech501
Sent March 14, 2005 8:12 a.m. (19 hours and 26 minutes later)

Thank you for your quick response. I installed a new radio in the summer of last year. That is only thing I can think of that could be drawing power. If so what do you suggest I do next?

Thanks Again

Rantz

Customer (name blocked for privacy)

Info Request
March 14, 2005 7:02 p.m. (10 hours and 49 minutes later)

REPLIED to Info Request

Does your Yukon have Onstar?

Davo -- Master technician -- 100% Positive Feedback on 1875 Car Accepts
ASE Master Technician/Advanced Automotive Diagnostic Technician

Reply to diablo666
Sent March 14, 2005 7:59 p.m. (56 minutes and 53 seconds later)

Yes it does and I added and a new Alpine radio that required an special adapter for the radio and OnStar to work.

Customer (name blocked for privacy)

Answer
March 14, 2005 10:00 p.m. (2 hours and 0 minutes later)

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Davo -- Master technician -- 100% Positive Feedback on 1875 Car Accepts
ASE Master Technician/Advanced Automotive Diagnostic Technician

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