1999 Chevrolet Tahoe Runs Rough Idle Give Gas Got Code Cylender 4 Misfire

1999 CHEVROLET TAHOE
112,987 MILES
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DJJONES
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  • 14 POSTS
my tahoe runs rough when at idle but if i give it gas it runs ok i got a code for cylender 4 misfire so the plugs where misplaced and it still runs the same.
Oct 21, 2012 at 3:56 PM
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RASMATAZ
  • ✓Experienced Mechanic
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P0304-Check the plug, compression and injector for this cylinder-then report back
Oct 21, 2012 at 4:06 PM
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DJJONES
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  • 14 POSTS
ok i had to replace the fuel pump but i will have that other stuff checked when i get a chance. i replaced the plug a few weeks ago and it cleared but now its doing it again
Nov 17, 2012 at 11:17 PM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
P0304-Check that cylinder's compression and injector
Nov 17, 2012 at 11:34 PM
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DJJONES
  • MEMBER
  • 14 POSTS
I checked the cylinder and compression is around 50psi
Dec 1, 2012 at 1:14 PM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
You need to identify what's causing it to be low- Valves or Rings-
Dec 1, 2012 at 4:53 PM
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