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04-25-2019, 10:07 PM | #1 | |
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1998 Silverado misfire in overdrive
I have a 98 1500 Silverado with a 5.7 and 115,000 miles. The truck runs good but with the cruise set on 60mph as you start up a slight incline the engine stumbles slightly. If you shift into 3rd it smoothes out or it will shift on it's own and smooth out. The truck has new plugs wires and intake gaskets.
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04-26-2019, 08:07 AM | #2 | |
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Re: 1998 Silverado misfire in overdrive
Is there any mechanical noise associated with the stumbling? Is there a Check Engine light on or flashing while driving?
If you scan for pending and stored codes, it might reveal which cylinders are involved, if it is actually misfire.
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04-29-2019, 06:09 PM | #3 | |||
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Re: 1998 Silverado misfire in overdrive
Quote:
WHAT IS THE FUEL PRESSURE when the vehicle is stumbling? Are we sure you're not just feeling the TCC disengage? Quote:
I would want to view the data stream when the vehicle is acting-up.
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05-02-2019, 01:49 AM | #4 | |
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Re: 1998 Silverado misfire in overdrive
The truck picked up a bad misfire giving off code p0300. I also had a code for camshaft correlation. I changed the cam sensor in the distributor and it runs perfect.
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05-04-2019, 06:05 AM | #5 | |
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Re: 1998 Silverado misfire in overdrive
Good Man! That's the way to stick with it.
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