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Tiny
SHANERUSHING
  • MEMBER
  • 2000 CHEVROLET S-10
  • 2.2L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 175,000 MILES
2000 s10 2.2 flex fuel will crank and run but it rough and a hard knock when its idling
Sunday, April 3rd, 2016 AT 5:06 AM

4 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Scan for codes and check fuel pressure with gauge auto parts rent it. Check fluids as well
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Sunday, April 3rd, 2016 AT 8:59 AM
Tiny
SHANERUSHING
  • MEMBER
  • 3 POSTS
I have done a vaccuum test on it and changed all the lines that was bad. And I have done had it on computer and it jus pulls up map sensor and I replaced it and stilll no different. I need help idk wat else to do
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Sunday, April 3rd, 2016 AT 9:02 AM
Tiny
SHANERUSHING
  • MEMBER
  • 3 POSTS
Is there anyway I can send u a video of it so u can hear it?
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Sunday, April 3rd, 2016 AT 9:03 AM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
No videos don't do us much good, if you can disconnect one plug at a time and knock disappears then it will probably be in lower end like rod or piston. You might try a compression test and get back to us but al should be with in 20% of each other clean throttle plate on both sides an d iac hole and check for vacuum leaks plus what I replied earlier is about all you can do.
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Sunday, April 3rd, 2016 AT 9:30 AM

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