Misfire/rough running?

2000 CHEVROLET S-10
212,176 MILES • 2.2L • 4 CYL • 2WD • MANUAL
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JSTRASSBURG89
  • MEMBER
  • 1 POST
The truck was running pretty rough. I took it to a mechanic, and the guy said it was skipping. He replaced the spark plugs, wires, and coil packs. The plugs were terrible. I got the truck back, it does run better, but still running really rough. Especially at low RPMs and under load. I heard that I should check vacuum lines, but I only know the basics of keeping a car running. Oil, brakes, tires, starters... anything else and I'm kind of in the dark.
Sep 11, 2023 at 2:12 AM
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STRAILER
  • ✓Experienced Mechanic
  • 55,238 POSTS
It sounds like you have low compression in one or more for the cylinders.

Here is a guide to help you and confirm the issue:

https://www.2carpros.com/articles/how-to-test-engine-compression

Please go over this guide and get back to us.
Sep 12, 2023 at 3:23 AM
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