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#1 |
![]() Join Date: Nov 2016
Location: Florida
Posts: 66
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Well.. Changed the spark plugs today hoping it would fix the woes I was having after starting the car about a week ago finding the rough idle but no dice. The plug in cylinder #7 was rough, so after changing all of them out and finding out it still was running rough i pulled the NEW plug out and there was oil on virtually half of the threads. I pulled another new plug on another cylinder to see if this was the case, but it didnt have the same issue.
Thats the new plug from #7 after removing it after starting it. ![]() Here are all the old plugs: ![]() Im kind of worried now.. Should I check the fuel system next or should I fear for the worst (piston ring)? Sent from my iPhone using ZR-1 Net Registry |
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#2 |
![]() Join Date: Nov 2016
Location: Florida
Posts: 66
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Keep in mind the idle is basically shaking the entire car.. Totally not normal and the engine seems to be "skipping" for lack of a better word
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#3 |
![]() Join Date: Jan 2006
Location: Niceville
Posts: 997
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With no knowledge of your car, I would next check the resistance across the coil packs (cold then hot if no symptoms). Ohm out the the mated wire ends to see if you have a coil problem.
Ted |
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#4 | |
![]() Join Date: Nov 2016
Location: Florida
Posts: 66
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Pulled each wire out while car was running. Pulling #2 and #7 did nothing. Gonna change coils and wires at the same time since Im pulling the plenum. Any suggestions for wires and coils? Sent from my iPhone using ZR-1 Net Registry |
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#5 | |
![]() Join Date: Mar 2014
Location: Warrington PA
Posts: 1,913
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There are also wires available for our engines. Hard to find a LT5 "script" wire set. But also the same wire is available without the LT5 "script". I did not change my wires when we did the pull a few months ago. That will probably happen in whenever!!!
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Tom 1994 ZR-1 #009 "captured test fleet car" 1974 LS4 454 Vert 1982 L83 CFI...now a retired "dd"....Sold WAZOO Member |
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