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Cylinder 5 misfire. Chevy 4.3 2016
- Oldslugger
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2 years 2 months ago #62516
by Oldslugger
Cylinder 5 misfire. Chevy 4.3 2016 was created by Oldslugger
2016 Chevy Silverado. 4.3 automatic. 1500 four wheel drive.
Cylinder 5 misfire at idle. No misfire at 1800 and higher.
Swapped coil , spark plug, plug wire, fuel injector from good cylinder.
170 psi cranking compression. 60-70 psi running compression all cylinders.
LTFTB1 at idle -30%
LTFTB1 at 1800 and above is normal. 10 to -10
LTFTB2 at idle and load 10 to -10
Engine vacuum at idle 21 and steady.
In cylinder wave form. At idle and one at 1800.
Any help would much appreciated. Thank you Mark
Cylinder 5 misfire at idle. No misfire at 1800 and higher.
Swapped coil , spark plug, plug wire, fuel injector from good cylinder.
170 psi cranking compression. 60-70 psi running compression all cylinders.
LTFTB1 at idle -30%
LTFTB1 at 1800 and above is normal. 10 to -10
LTFTB2 at idle and load 10 to -10
Engine vacuum at idle 21 and steady.
In cylinder wave form. At idle and one at 1800.
Any help would much appreciated. Thank you Mark
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- chrisojeda8
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