기기를 수리하세요 커뮤니티 상점

The GMT800 Silverado/Sierra 1500 and 2500 (non Heavy Duty) (light pickup trucks) were released in 1998 as 1999 models.

26 질문 전체 보기

옵션

GMC sierra 5.7 only starts when you arc # 3 plug wire

Ok never seen this before and have no idea 2000 GMC sierra 5.7 will not start. I was checking for spark on the #3 plug to see if I’m getting fire and the truck cranked and ran smooth as long as I’m jumping it to the exhaust manifold. I tried it on all other plug wires no start it only cranks when you arc the # 3 plug wire. Also hooked the wire back up while the truck was running and the truck died no start until I jump the wire???? Any ideas I need y’all’s brain power thank you

이 질문에 답하기 저도 같은 문제를 겪고 있습니다

좋은 질문 입니까?

예 아니요
점수 0

댓글 1개:

@alcorn What happens when you replace the plug but leave your connector off? You'e tried new plugs....This is weird!!!! It somehow shortens things out. Bad Coil a possibility?

의

댓글 달기

답변 1개

필터:
가장 유용함 가장 최근 가장 오래된

옵션

I did try leaving the connector off it will not start unless the plug is in and a screwdriver in the wire is held at the exhaust manifold allowing it to arc the fire. It only works on the #3 all others do not have any fire unless the number 3 is arced on the manifold. Then it cranks and runs smooth as if it’s firing on all 8. To note I just did a head gasket job. I’m going to chase my grounds today and I’ll post any findings

해당 답변은 도움이 되었습니까?

예 아니요
점수 0
댓글 달기

귀하의 답변을 추가하세요

Vernon alcorn 님은 대단히 고마워 할 것입니다.
조회 통계:

24 시간 전: 1

7일 전: 1

30일 전: 2

전체 시간: 23