Engine misses and very hard start

Tiny
CANAANHONEA
  • MEMBER
  • 1998 CHEVROLET 1500
  • 5.7L
  • V8
  • 2WD
  • AUTOMATIC
  • 250,000 MILES
My truck has a very hard time starting. It will crank but not start. The engine misses and it is hard to accelerate especially uphill. Almost like a timing or air/fuel problem. I have replaced the plugs and plug wires. I took it to mechanic shop for diagnosis and they said it had jumped time. But I changed the timing chain and it hasn't jumped, it was a little stretched so I replaced it anyways. I don't know what to do next.
Monday, November 25th, 2019 AT 9:00 AM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,512 POSTS
Hello,

It sounds like the fuel pump is going out. To be sure here is a guide to show you how to check the fuel pressure and instructions in the diagrams below to show you how to replace the fuel pump which is common:

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

Check out the diagrams (below). Please let us know what happens.
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Tuesday, November 26th, 2019 AT 2:40 PM

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