Loses power

CROYBOY

MEMBER
1995 CHEVROLET 1500
5.7L
V8
4WD
AUTOMATIC
220,000 MILES

When holding throttle at a constant speed the engine will lose power then return constantly.

Friday, November 29th, 2019 AT 10:12 AM

1 Reply

AL514

MECHANIC
4,108 POSTS

Hello, does the check engine light come on when the problem is present? A good start would be to see if fuel pressure is dropping off at higher RPM's. Here is a quick guide to understanding fuel pressure testing:
https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator