Quote:
Originally Posted by HO455
The WMB has been having an off and on again starting issue. Sometimes it cranks slow and other times it I'd fine. I suspected a bad solenoid but before pulling the starter I did a thorough round of testing of the battery cables to be sure I wasn't getting a voltage drop from a bad battery cable or connection.
I tested the battery with a carbon pile tester and it was good. Then I checked both battery cables with a multimeter. I set the meter to the DC volts setting. Then by putting a multimeter lead on the negative post of the battery and the other lead to a clean unpainted spot on the block. The initial voltage was zero but when cranking the engine the voltmeter showed 1.2 volts. A careful inspection showed the bolt on the negative battery terminal was pulling out of the terminal. I did a quick jury rig repair and the voltage dropped to zero.
Inspection of the positive cable revealed no problems with the cable but when I checked the nut on solenoid bolt for tightness the problem revealed itself. The inner plastic part on the solenoid turned freely when I tried to turn the nut. Time to head to the parts store.
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I'm having basically the same problem with my 2005 Buick Rainier with a 5.3L engine. I put it up on ramps so I can pull the starter out of it in the next few days. The starter is really hard to get to because of the AWD setup.
Good luck on yours and let us know how it turns out....