Shut off while driving will not start

Tiny
JOWALT
  • MEMBER
  • 1996 GMC SIERRA
  • 4.3L
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 200,000 MILES
Coming to work and started losing power. RPM started going down even if I gave it gas, Finally shut off and will not start.
Thursday, December 20th, 2018 AT 11:47 AM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,414 POSTS
Hi and thanks for using 2CarPros.

Based on your description, it doesn't sound ignition related but rather fuel related. The first thing I suggest is checking fuel pressure. However, here is a link that discussed the most common causes for a crank no start condition:

https://www.2carpros.com/articles/car-cranks-but-wont-start

Here is a link that discusses in general how to check fuel pressure:

https://www.2carpros.com/articles/car-cranks-but-wont-start

Here are the manufacturer's specifications related to pressure:

Fuel pressure
1. Ignition "OFF" for ten seconds.
2. With ignition "ON," engine "OFF" and fuel pump running, pressure should be 415-455 kPa (60-66 psi).
For additional fuel pressure testing procedures,

________________________________

An easy way to determine if the problem is fuel related is by using starting fluid. If the engine starts for a couple seconds and then stalls, the problem is fuel related.

Do this and let me know what you find.
Joe
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Friday, December 21st, 2018 AT 8:40 PM

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