Question about 1997 GMC Jimmy

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Fuel injector working on a 2003 chevy trail blazer with the 4.2, it has a bad fuel injector. Does any one have any ideal how to get the throtle body off, or how to get to the injector. Im having a heck of a time, and have no ideal what to do. There is this black plastic casing around the throtle, which is only breaking, and five bolts on the bottom of it, which did nothing when I lossen, please help! thank you

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To get to the fuel injector requires taking the intake manifold off. The design of the injectors is a "spider" configuration.

Posted on Mar 21, 2009

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