98 Camaro

Tiny
JEFFEY08
  • MEMBER
  • 1998 CHEVROLET CAMARO
  • 6 CYL
  • 120,000 MILES
I have a 3.8 camaro motor that is not fireing on 3 cylinders one on each coil pack cpu has not picked up a fault code installed new coil packs wires plugs had ing mod checked has slight rattle left side of motor towards front of eng. Motor has 120.000 miles on it
Tuesday, July 26th, 2011 AT 4:44 PM

9 Replies

Tiny
DOCFIXIT
  • MECHANIC
  • 18,828 POSTS
Are the three not firing on same bank ie. Cylinder head?
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Tuesday, July 26th, 2011 AT 5:04 PM
Tiny
JEFFEY08
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Thanks for the reply. No its #1 2 6
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Tuesday, July 26th, 2011 AT 5:26 PM
Tiny
DOCFIXIT
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Are you pulling plug wire off holding next to block to check for spark?
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Tuesday, July 26th, 2011 AT 5:38 PM
Tiny
JEFFEY08
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No pulled from coil while running made made no change in motor sound
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Tuesday, July 26th, 2011 AT 5:45 PM
Tiny
DOCFIXIT
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Coil fires both plugs at same time called wasted spark so think you have spark but injector not operating. Have a DVOM? Test light? Compression guage?
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Tuesday, July 26th, 2011 AT 5:52 PM
Tiny
JEFFEY08
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Yes sir I do
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Tuesday, July 26th, 2011 AT 5:55 PM
Tiny
DOCFIXIT
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Check for voltage on pink. If good hook up test light clip to BATT POS probe on other wire for INJ crank does it flash?
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Tuesday, July 26th, 2011 AT 6:01 PM
Tiny
JEFFEY08
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Volts are good at inj and test light flashing on all inj
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Tuesday, July 26th, 2011 AT 6:16 PM
Tiny
DOCFIXIT
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Does injector click as engine runs? If yes check compression
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Tuesday, July 26th, 2011 AT 6:20 PM

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