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08 Tahoe 258000 miles hard starting and wet spark plugs
It wasn’t quite warmed up yet it’s misfiring on four cylinders I’ll show you the misfire chart it wasn’t quite warmed up it misfiring on 5 cylinders- Jkiel84
- Post #26
- Forum: Engine & Drivetrain
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J
08 Tahoe 258000 miles hard starting and wet spark plugs
This are the trims and o2 sensor values but it doesn’t seem like the trims are doing anything shouldn’t they fluctuate a little- Jkiel84
- Post #23
- Forum: Engine & Drivetrain
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J
08 Tahoe 258000 miles hard starting and wet spark plugs
No e85 ever I e never replaced the cables never knew that needed to be done I learn so something new all the time on here that’s why I posted here with my problem- Jkiel84
- Post #17
- Forum: Engine & Drivetrain
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J
08 Tahoe 258000 miles hard starting and wet spark plugs
It’s arm but all that works correctly there’s no noises coming from it there was no knocking or any rattling coming from the motor itself it ran quiet and then the happed all the shark plugs are black and damp with fuel I’m lot losing any coolant I’ll get numbers today for the fuel trims and o2...- Jkiel84
- Post #16
- Forum: Engine & Drivetrain
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J
08 Tahoe 258000 miles hard starting and wet spark plugs
Pump gas 6 mos ago tune up plugs wires coils oil every 5000 truck is stock new cats and Bosch o2 sensors plugs are ac delco platinum gapped at .040 I checked before I put in and ac delco coils and wires one day it ran fine next morning go to work and it would start then die but only start if I...- Jkiel84
- Post #14
- Forum: Engine & Drivetrain
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J
08 Tahoe 258000 miles hard starting and wet spark plugs
Pump gas tune up was 6 months did coil plugs wires oil changes are around 5000 cats are new o2 sensors are new I did the newer style valve cover there’s no leaks compression lowest is 165 highest is 180 head gasket doesn’t leak- Jkiel84
- Post #13
- Forum: Engine & Drivetrain
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J
08 Tahoe 258000 miles hard starting and wet spark plugs
Sorry guys I’ve been away at work at haven’t had time- Jkiel84
- Post #12
- Forum: Engine & Drivetrain
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J
08 Tahoe 258000 miles hard starting and wet spark plugs
Yes I’ll get the trims and o2 voltage all the 02 sensors are brand new Bosch ones cause I thought it was the cats cause I got the code for the cats performing under threshold so I changed them and the cats looked good I also did a compression test lowest compression was 165 and the highest was...- Jkiel84
- Post #11
- Forum: Engine & Drivetrain
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J
08 Tahoe 258000 miles hard starting and wet spark plugs
My 08 Tahoe 5.3 flex fuel all of a sudden on day just had a p0300 random multiple misfire so I changed all the plugs ac Delco iridium’s mind just bought all new coil packs also ac delco it ran fine then the p0300 code checked the plugs they were all black and wet with fuel so I changed all the...- Jkiel84
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- Replies: 70
- Forum: Engine & Drivetrain
