While driving the engine shuts off

RWEINELT1

MEMBER
1990 CHEVROLET SILVERADO
5.7L
V8
2WD
AUTOMATIC
244,000 MILES

Truck stops running while driving. I replaced ignition rotor. It starts and runs fine for about a week one hundred to two hundred miles a week then quits running again?

Monday, May 7th, 2018 AT 6:10 AM

3 Replies

CJ MEDEVAC

MECHANIC
11,004 POSTS

Works again for a week with a new rotor button?

With the distributor cap off, using your fingers, is there any circular wobble on the shaft the button sits on? (Not CW or CCW rotational play) (Understand?)

Can you see any unusual wear on the button while comparing it with a new one?

The Medic

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Thursday, September 3rd, 2020 AT 1:01 PM

RWEINELT1

MEMBER
2 POSTS

Replaced distributor and coil last year, problem still continued. It has accelerated since we rebuilt TBI and pressure regulator.

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Thursday, September 3rd, 2020 AT 1:01 PM

KEN L

MASTER CERTIFIED MECHANIC
47,536 POSTS

When the engine stalls do you hear the pump in the tank still running? Also, lets check for spark it see if it is ignition related.

https://www.2carpros.com/articles/how-to-test-an-ignition-system

This guide can help as well.

https://www.2carpros.com/articles/engine-stalls

Please let us know what happens.

Cheers, Ken

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Thursday, September 3rd, 2020 AT 1:01 PM