[tyl604]

My indie says the starter is gone. Can someone tell me how you diagnose a bad starter? I had this one replaced for $210 about 3 years ago. Seems like they climbed under the truck with some elec leads (like a battery charger?) for the test. Said starter was gone.

Now a indie says it is gone again. What did they use and how did they check to determine that this fairly new starter is gone?

The next time this happens I would like to diagnose myself.

Thx.

 

[helievacpilot]

Probably were leads. All you have to do is apply 12v to the postive post of the starter. If it spins, your good. If not, .....

 

[number9]

Some use a starter test switch.
https://www.google.com/search?q=starter+test+switch&newwindow=1&biw=1920&bih=928&source=lnms&tbm=isch&sa=X&ved=0ahUKEwiJ_Ii6r4nLAhWF7yYKHSgwBRQQ_AUICCgC
......

 

[helievacpilot]

Yea, sorry. Forgot about the solenoid. Just replicate one of the procedures diagrammed in the link posted above.

 

[number9]

Typical pilot.
......

message sent from atypical airline mechanic

.....

 

[helievacpilot]

Typical pilot.
......

message sent from atypical airline mechanic

.....

Ah. So your Disco is one breath away from the crusher.
Typical mechanic.:grin

 

[tyl604]

Thanks guys. Good info.

 

[Nobites]

If the starter motor is not that old then might be able to replace the bushes and fix it. Mine would not crank over did a bit of google search and a bloke in England sells them think his company was repair kit or something. I just gave him my vin number he sent the parts. I received the two brushes and the plunger. Was not a hard job and in the end the negative was the worn one the positive was near perfect.

Just a thought

Peter

 

[tyl604]

Final outcome:

Rebuilt Bosch starter $375
Labor $150
Diagnosis $50

So about $575

Picked it up today.

Thanks for the help. Now I know how to diagnose a bad starter and will not pay anyone again to install. Too bad I could not get the core which I would have rebuilt and put on a shelf for the next time.