Asked by Amom Feb 16, 2016 at 08:09 PM about the 2002 Chevrolet Tahoe Z71 4WD
Question type: Maintenance & Repair
I have an 02 tahoe z71. It has brand new
alternator, good battery and good starter but on
occasion won't start. This has increased since
new alternator. It has in past and even today
started after I jerk the steering wheel hard right.
Could it be the something in steering wheel or is it
ECM?
nickyiankes answered 8 years ago
Your Starter can be intermittent or there is a start wire that comes from the steering column switch, it can work intermittently. The start wire switches 12 volts to your starter solenoid ( small wire ) when you turn the key. You can jump 12 volts to the small terminal on your starter when it won't start to determine if that wire is not supplying the current and voltage needed. Make sure it is in Park with the emergency brake on! Try the easiest thing first, Rap on the starter with a hammer when it fails to start. check for loose wires ect.. near starter. Many times a starter can test good at a parts store but be intermittently bad on your vehicle.
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