Ir para o conteúdo principal

Automobiles by General Motor's Pontiac brand. Pontiac was founded in 1926 and became defunct in 2010.

336 Perguntas Visualizar todos

Why does the engine crank but not start in my Pontiac Sunfire 2004?

I have a Pontiac Sunfire 2004 2.2 engine. The motor cranks over but will not start had a new gas pump put in the tank new fuse under the hood put in for the fule pump,inline filter put in, ran good for a good 3 days , now it turn over but wont start.

thank u Gary

Respondido! Ver a resposta Também tenho esse problema

Esta é uma boa pergunta?

Pontuação -1
3 comentários

Do you have a spark?

por

yes have good spark in all plugs

por

broken fuel pump??

por

Adicionar um comentário

2 respostas

Solução escolhida

Could be injector pressure regulator, injectors, controller board. Trouble codes from the engine may point to the trouble . Pull the oil dipstick and look for moisture (sign of a blown head-gasket).

If this Answer is helpful please remember to return and mark it Accepted.

Esta resposta foi útil?

Pontuação 1
Adicionar um comentário

It’s in the wiring for the fuel pump! Under the hood pull fuel pump relay and plug back in! Should start!

Esta resposta foi útil?

Pontuação 0

1 comentário:

There are so many possible things wrong. Pulling and putting back a relay may work in very limited cases, but if so this shows the relay to be faulty and sticking internally so it should be replaced. Could also be actual fuel pump failure, fuel pressure regulator, injectors, or a number of other things. Engine codes would narrow it down, as would other tests. You just don't know until you start checking.

por

Adicionar um comentário

Adicionar a sua resposta

Gary buchinger será eternamente grato(a).
Exibir estatísticas:

Últimas 24 horas: 0

Últimos 7 dias: 0

Últimos 30 dias: 0

Duração total: 1,665