1999 GMC Sierra SLE classic K1500 5.7L (vin R) ext. cab


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1999 GMC Sierra SLE classic K1500 5.7L (vin R) ext. cab

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rivercityrandog
New User

May 3, 2018, 7:35 AM

Post #1 of 5 (2547 views)

1999 GMC Sierra SLE classic K1500 5.7L (vin R) ext. cab	Sign In

Motor rebuilt 2 years ago. New starter, alternator and battery at that time. Ignition switch and fuel pump changed in the last few years. Turn the key and nothing. Not even a click. battery has power. don't believe it is the alternator. Pulled the starter. passed the test. when putting the starter back in found a live wire right in the area of the starter that has a female ring connection. It is small and inside diameter would fit to a bolt the size like the two bolts holding the starter motor body together. All that is down there is the starter and sensor that I can remember. any idea where this live wire connects?

Discretesignals
Ultimate Carjunky / Moderator
Discretesignals profile image

May 3, 2018, 8:25 AM

Post #2 of 5 (2536 views)

Re: 1999 GMC Sierra SLE classic K1500 5.7L (vin R) ext. cab	Sign In

Does this have an aftermarket alarm or remote start system installed?

Will it crank with the transmission in neutral?

Got a volt meter or 12 volt test lamp?

Do the head lamps work?

What color is the wire you see hanging?

The positive battery cable should be connected to the large lug on the starter solenoid and the purple trigger wire connects to the small terminal on the solenoid.

There is also a starter relay in the fuse block under the hood. Have someone crank the engine while you listen to hear if that starter relay clicks. Let us know what you find out.

Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.

(This post was edited by Discretesignals on May 3, 2018, 8:39 AM)

rivercityrandog
New User

May 6, 2018, 7:42 AM

Post #3 of 5 (2474 views)

Re: 1999 GMC Sierra SLE classic K1500 5.7L (vin R) ext. cab	Sign In

The truck came with the passlock anti theft system factory installed. I don't believe a remote start was ever added.

It will not crank in nuetral.

I will get a volt meter or test lamp soon.

the headlights are working.

The hanging wire issue is resolved. I forgot to connect the trigger wire. first time I have done that. have the starter connected properly now and still nothing, no click or anything when trying to crank it.

the starter/fuel pump relay both click when trying to crank the motor.

this truck has 2 positive cables on the side mount of the battery. one goes to the fuse box. The second to the starter with a smaller wire off to the alternator.

Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

May 6, 2018, 8:18 AM

Post #4 of 5 (2469 views)

Re: 1999 GMC Sierra SLE classic K1500 5.7L (vin R) ext. cab	Sign In

Are you sure you have that purple wire connected to the correct post?

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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.

rivercityrandog
New User

May 6, 2018, 9:51 AM

Post #5 of 5 (2461 views)

Re: 1999 GMC Sierra SLE classic K1500 5.7L (vin R) ext. cab	Sign In

Yeah. I just skipped the step of hooking up the purple wire when I was putting the starter back in after I had it tested. I took the starter back off to get a better look at the area. That is when I noticed the purple trigger wire was not connected. So the hanging live wire part of this post has been resolved. Truck still will not crank even with the trigger wire hooked up.

The first time I took the starter off to have it tested, they said it was pulling low amps at one of the posts (not sure how much I trust the parts stores). The second time I took it out I saw why someone had put a double nut on the post the battery cable connects to. The threads on the post were messed up. Since I had the starter off the truck already I took it to a place here and had the solenoid replaced. They tested the starter there again before doing so and the starter motor is fine.

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