Starter issues ‘94

[dieselolds]

Or, could be a phaulty starter solenoid.
As in, might be a broke spring within allowing the plunger to shake forth and back.
I seen that in one instance. Dont remember the brand of starter though.

I’ve seen the same thing happen as well.Happened upon a 95 Chevy 2wd with 4.3 vortec engine.Whenever the truck was heading downward the overrunning clutch teeth in the starter would hit the flexplate and if the truck was heading upward there would be no noise.

 

[Glagulator]

Could be, but GM Guy said "removing the relay prevents it from doing it".

 

[dieselolds]

I’ve seen the same thing happen as well.Happened upon a 95 Chevy 2wd with 4.3 vortec engine.Whenever the truck was heading downward the overrunning clutch teeth in the starter would hit the flexplate and if the truck was heading upward there would be no noise.

Sorry guys I got that mixed up…lol.I must have had a buffering moment.It happens

When the truck was heading upward the overrunning clutch teeth would fall back hitting the flexplate.

 

[dbrannon79]

Run you a temporary wire from the starter solenoid back up into the cab to a light or LED so you can see when and how often the solenoid receives power. have you tried the musical relay trick. maybe the relay contact inside is loose and when it gets bumped it makes a slight contact.

you can also use this temporary light to help find the issue if there is a wiring issue. disconnect the solenoid so the starter doesn't crank but you can watch the light while combing though wires and whatnot.

 

[GM Guy]

Run you a temporary wire from the starter solenoid back up into the cab to a light or LED so you can see when and how often the solenoid receives power. have you tried the musical relay trick. maybe the relay contact inside is loose and when it gets bumped it makes a slight contact.

you can also use this temporary light to help find the issue if there is a wiring issue. disconnect the solenoid so the starter doesn't crank but you can watch the light while combing though wires and whatnot.

Yes, I have swapped relays around without change.