Rough idle and exhaust has black tip

[Donahoo94]

Hey guys having a few more issues with the crusier, this time it's rough idle and tye exhaust has black around the tip and this morning it was blowing white smoke for about minutes then stopped.

Also our mechanic told us that we are online running off 6 or 7 cylinders for a V8. Could this be caused from replacing the starter motor and something not put back properly.

Thanks guys

 

[StarCruiser]

Unlikely the starter motor but wurth a visual check that all plugs are well connected, look at spark plugs for any difference in one or two and check gaps aren’t too wide. Are you running on LPG? Using a diagnostic tool like Techstream could show you which cylinders are the problem. Once you know which, swapping components like plugs or coil packs (not sure how the HT side is on these) etc can narrow down the problem.

Start with the easy things first.

 

[Donahoo94]

No it's not LPG, think i found the issue 1 injectior is leaking quite alot and 1 is a very slow leak.

 

[StarCruiser]

No it's not LPG, think i found the issue 1 injectior is leaking quite alot and 1 is a very slow leak.

Perfect. Might clean. A decent motor factors may have a cleaning facility.

 

[Donahoo94]

Perfect. Might clean. A decent motor factors may have a cleaning facility.

Yea, hopefully fix those 2 injectors and abit of a clean and she'll be back to normal hahah