Question about 1992 GMC Sierra K1500

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1992 GMC Seirra, wont idle and when in gear has no power, it was running great then injector fues blew and now its doing this, can my injectors need replaced?

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Well, one should get a noid light or a light that tests injectors to see if the injectors are getting power.

Also, check that the injectors are clicking or operating.

Also, check that the computer is not blown out if each and every injector is not working.

In this way, one can get an idea of which injector to replace if it is shorted out or has a broken injector.

Posted on Oct 13, 2010

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Posted on Jan 02, 2017

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