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Username Post: 65 C10 stalling while driving        (Topic#348725)
Posts: 42

Loc: New Jersey
Reg: 08-06-05
12-16-17 01:51 PM - Post#2718153    

My son got some Christmas time off and drove up from Fort Bragg last night. 13 hour drive and his 65 C10 kept stalling. He said the radio would stop, the lights went out, and the engine died. This happened many times during his drive. Sometimes it would stall for a few seconds and he could pop it in nuetral and start it back up, sometimes it took a few minutes before restarting.

We are planning on pulling the engine on monday to run new brake lines and add disc brakes up front. Also going to swap the auto trans for a 4 speed. The stalling problem sounds like it might be electrical so I will go ever everything and make sure the grounds are good and there are no loose or burnt wires. The engine is a 400 sbc, not original, and has an alternator that came with it, but I noticed there is also an external voltage regulator on the radiator support that is hooked up too. I assume the alternator has an internal voltage regulator and maybe both internal and external are hooked up? Could that be an issue?

If anyone has any ideas on things I could check it would be greatly appreciated.

Chris Ecklers

Posts: 279

Loc: northern California
Reg: 01-27-17
12-16-17 02:11 PM - Post#2718155    
    In response to jaronimo

Just don't mess up the trans swap like they did on my truck. My truck used to be automatic I believe and was sloppily converted to a 4 speed by one of the past owners who did not know what they were doing.

Just thought I'd put that out there.


Edited by Eric_Gary132 on 12-16-17 02:12 PM. Reason for edit: No reason given.

Valued Contributor
Posts: 2768
Loc: what does this part do?
Reg: 05-26-02
12-16-17 11:18 PM - Post#2718213    
    In response to jaronimo

If there are wires going from the alternator to the voltage regulator plug connector there by the radiator, then the alternator is probably the older style. No reason for the voltage reg. to be hooked up if it isn't.

As for the stalling for no reason... yes, check all of the grounds, spark plugs, plug wires, distributor, rotor button... also, fuel lines, fuel filter... including some carbs have small ones at the carb as well.

Even tho ya said everything electrical went off at once... so probably not fuel related.

Check the fuse panel also. One of the circuits on my old '65, the metal contact clips wiggle and it loses contact on the circuit sometimes. I had a weird electrical issue once and I found some burned out wires, BEHIND the fuse panel, it is only two small bolt head screw to take it off and look once you get the fuses out(if it's the stock one). Make sure you remember which fuse goes where.

Let us know what you find, some of these other truck folks might have other things to troubleshoot.


Valued Contributor
Posts: 3503

Age: 73
Loc: Sidney, B.C.
Reg: 12-03-05
12-18-17 06:04 PM - Post#2718374    
    In response to Woogeroo

check the main connector that comes thru the firewall by the M/C. it could be coming loose or the connectors are getting corroded possibly.
ron Ecklers

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