Help!!!! Weird noise coming from engine! - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Darreola562 · 01-29-2018, 05:24 PM

Hello all,

Today I attempted to jump start my 72 c10 with a 5.7 carb engine. When I made a couple of attempts on starting it it would just click... after the 5th time I attempted to start it and it did but make a loud spinning/ screeching sound. I turned it off and the noise continued. I ran and got the cables detached from the battery and the noise stopped. I attempted once again to connect the cables and the noise begun right away even without the keys in the ignition. Anyone have an idea what this is?

harpo231 · 01-29-2018, 05:30 PM

Shorted starter/relay/ solenoid maybe... rap on the solenoid with a hammer,, should loosen it up..if does , time to replace..

**Stocker** · 01-29-2018, 05:31 PM

Bad starter is my guess too.

truckster · 01-29-2018, 06:22 PM

If you tear that starter solenoid apart you're going to find a nice chunk of carbon where it arced and bound to the starting post. You can remove the solenoid and replace it, or if you're ambitious you can tear the solenoid apart and clean the copper disk and contacts.

Darreola562 · 01-29-2018, 07:35 PM

Thanks guys!! I’m gonna try and do this as soon as I get out of work. Hopefully is easy accessible .

01-29-2018, 05:24 PM	#1
Darreola562 Registered User Join Date: Jan 2018 Location: Paramount Ca Posts: 26	Help!!!! Weird noise coming from engine! Hello all, Today I attempted to jump start my 72 c10 with a 5.7 carb engine. When I made a couple of attempts on starting it it would just click... after the 5th time I attempted to start it and it did but make a loud spinning/ screeching sound. I turned it off and the noise continued. I ran and got the cables detached from the battery and the noise stopped. I attempted once again to connect the cables and the noise begun right away even without the keys in the ignition. Anyone have an idea what this is?

01-29-2018, 05:30 PM	#2
harpo231 Registered User Join Date: Nov 2014 Location: Lincoln City DE Posts: 1,292	Re: Help!!!! Weird noise coming from engine! Shorted starter/relay/ solenoid maybe... rap on the solenoid with a hammer,, should loosen it up..if does , time to replace.. __________________ Stan 67 swb BLU MULE posted via flip-fone Last edited by harpo231; 01-29-2018 at 05:36 PM.

01-29-2018, 05:31 PM	#3
Stocker 20' Daredevil (Ret) Join Date: May 2003 Location: Jefferson State Posts: 13,728	Re: Help!!!! Weird noise coming from engine! Bad starter is my guess too. __________________ - Mike - 1972 K20 LWB 350/350/205 RIP El Jay

01-29-2018, 06:22 PM	#4
truckster Registered User Join Date: Jan 2001 Location: Orem, Utah Posts: 7,981	Re: Help!!!! Weird noise coming from engine! If you tear that starter solenoid apart you're going to find a nice chunk of carbon where it arced and bound to the starting post. You can remove the solenoid and replace it, or if you're ambitious you can tear the solenoid apart and clean the copper disk and contacts. __________________ I have sworn upon the altar of God, eternal hostility against every form of tyranny over the mind of man. - Thomas Jefferson

01-29-2018, 07:35 PM	#5
Darreola562 Registered User Join Date: Jan 2018 Location: Paramount Ca Posts: 26	Re: Help!!!! Weird noise coming from engine! Thanks guys!! I’m gonna try and do this as soon as I get out of work. Hopefully is easy accessible .



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