Question about GMC Yukon
I have pulled all the fuses ane re-installed one at a time. The radio fuse give a good arc when I pull and re-install it. The radio plays great. A year ago the battery died a couple times so I replaced it. about 2-3 months ago the battery would be dead if I did not drive it in 3 days. Also maybe seprate issue, my oil presure gage does not reset to zero when I shut off or re-start the engine thus the gage reads 40-50psi plus what ever the gage read prior to starting the car (after a couple of starts maybe way off the scale). I can turn the key past ON but not start the engine and release 20-30 times and it will go back to zero. Do I need a new ignition switch? Other than these minor faults the car runs great, and has 146,000 miles. I have had the oil gage problem for 2 years and the draining of the battery for only 3 months.
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Posted on Jan 02, 2017
SOURCE: 91 Cressida won't start
Lead acid batteries can "die" catastrophically. This is actually not all that uncommon. If the battery is new, it should be under warranty. I would take it back, and have them test it. It it fails, which I believe it will, then there is the problem. If it passes, then your alternator is probably bad. The chances of it being your alternator are slim as you did jump the car off, and drive it for a while. If the battery is too weak to start the car, it will not maintain vehicle operation very long without help from the alternator.
Posted on Mar 24, 2009
Testimonial: "Good advice"
it would take about 350 hours to kill your battery at 200 ma leakage .. between the computer, radio and anything else that has "keep alive" conditions .. i would think 200ma is maybe on the high side of normal .. to kill the battery in 2 days would require a continuous drain of more than 1.5 amps .. that would be about what the trunk light or under hood light would draw .. make sure those are going off .... alternator diodes can have leakage thats very high .. of course if you are measuring the leakage current right at the battery connector then all leakage sources should be included in the reading .. if its only 200ma then you might have a bad battery (low on water or sulfated) .. Pb acid batteries are easily ruined by leaving them discharged for a while .. and the maintainence free types can only handle a few deep discharges .. .
Posted on Jul 13, 2009
I'd remove panel as/if necessary so that I could remove connector at power trunk latch, and see what happens from there. If interior lights work o.k. and no drain, then you found your source of drain/short.
Posted on Jan 31, 2010
The big red wire on the big connector on the firewall is the problem. You need to take it apart and clean the contacts. Another fix is to run the big red wire through the connector after you solder it together.
Posted on Mar 27, 2010
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