Question about 1994 GMC Sonoma

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Some times my truck wont start I think it may be the fuel pump how can I tell

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If you have the tools to check fuel pressure, this will be the best way to check for fuel pump operation.

You check for fuel pressure at a schrader valve on the fuel rail.

It could also be an goofy acting fuel presure regulator

Posted on Oct 13, 2010

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