2008 GMC Sierra no crank, but clicks once.

190

Asked by Rick Jan 01, 2017 at 06:26 PM about the 2008 GMC Sierra 1500 SLE1 Crew Cab 4WD

Question type: Maintenance & Repair

I got out of work the other day walked to my truck,
it started right up like any other day. I got home,
shut the truck off and went inside. I go out to my
truck at 2:30 am to go to work and my truck will
not crank, it clicks only one time. In order to repeat
the clicking, you must cycle the key off then
attempt to start it again. I checked all of the fuses
under the hood. No go. I replaced the battery with a
spare battery, No go. I cleaned all the connections
on the starter and added some dielectric grease.
No go. The only things I can think of now would be
the starter went kaput, the neutral safety switch, or
maybe the ignition switch. Does anyone have any
other ideas? Maybe something I am unaware of?
Also, please be advised, I do not have a multimeter
to perform electrical diagnosis. Any help from ya'll
would be greatly appreciated!! Thanks in advance!!

10 Answers

220,515

First you need to know if that battery is good for sure, a low battery and or bad connections, or a bad cable all would cause the clicking noise that comes from the starter. But also it is possible there is something wrong with the starter. All you would have to do is take it off and have it load tested to see if it is working properly.

4 people found this helpful.
190

I attempted several different batteries, including one from my wife's vehicle. I also gave the starter a few good 'technical taps'. No symptom change at all. What are the odds it could be a starter relay? It's a 2008 Sierra 4.8L with 133,000 miles

9 people found this helpful.
220,515

If the noise is coming from the starter, the relay would be working.

3 people found this helpful.
190

So if the clicking is coming from the starter, it's safe the assume the starter has gone bad. Or should I do something to check the neutral safety switch?

2 people found this helpful.
190

To be safe, I could take the starter to an auto parts store to have it tested. At least then I will know for sure.

1 people found this helpful.
190

So if I take the starter out and leave it connected, and attempt to start the truck, if the starter spins it would be the starter. If it doesn't spin, it would be something else.

3 people found this helpful.
220,515

You take the starter out it would not work, there is no ground. You would have to disconnect it from the vehicle and use some jumper cables from a battery to the starter. The ground to the outer case, and the positive to the top large terminal, then cross over with a screw driver to the small wire terminal. You would need to hang on to the starter as it has a lot of torque and want to move. Don't be scared.

1 people found this helpful.
190

Well, I took the starter and battery to the local auto parts store. I had them both load tested. The battery tested good as I thought it would. The starter spun, but the solenoid did not kick out the starter gear like it should have. I had it tested 3 times to be certain. So I gather that the copper coil in the solenoid was not energizing and therefore not kicking out the starter gear. I replaced the starter, added some dielectric grease, and cleaned up all the connecting wires again. I turned the key, and she started up like a champ.

4 people found this helpful.
70

I saw on YouTube that you can take starters apart & clean them & most of the time that fixes them. So I did that when my Hyundai starter crapped out. There was a piece of the magnet brush that had broken off & was rattling around. After cleaning, the starter worked for 2 more years until the computer crapped out & now she's dead.

7 people found this helpful.

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