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Posted on Jan 02, 2017
SOURCE: 1997 GMC 1500 Sierra Won't start
check to make sure ur starter motor is earthed correctly, u can always remove the starter motor and test it using a portable battery charger, just be careful of the pinion
Posted on Jul 21, 2009
Try to locate the cause of the discharge current as below:-
While vehicle electrical system shutdown as for overnight storage, connect an ammeter (with suitable current capacity and sensitivity) across the main ground connection between the battery -ve terminal and vehicle chassis/frame - (-ve of the ammeter to -ve battery terminal post, +ve to vehicle frame),
Carefully disconnect the main battery ground cable from the chassis,
The ammeter will now measure the battery discharge current - a discharge current in the order of 0.5 amp or more is of concern.
If all is well, the current draw should not exceed 50- 100 mA.
Note- Do not switch on any load while ammeter is connected, as ammeter damage or overload will occur.
If an excessive discharge current is observed, remove all fuses etc to eliminate / locate cause.
Posted on Oct 14, 2009
The blower motor is on the passengers side under the dash.You might have to remove the a lower panel.This is the insulator panel.If the blower works at all just turn it on and follow the noise.Hope this helps.Good luck.
Posted on Apr 08, 2010
If you look where the heavy wire from the alternator goes into the end of the fuse box near the battery there is a mega fuse there. I would check that and the nuts that hold that fuse in, they might be loose causing a poor connection.
Posted on Apr 28, 2010
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