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1998 Chevrolet Blazer Question: starts hard when cold



wrgerstung, Park City, UT, December 04, 2013, 12:09

no problem when started

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  • Answer #1

    cardocIII from Gillespie's Auto Service, December 04, 2013, 12:57

    Weak fuel pumps are common, you must have at least 55 psi to get the engine to start, 54psi won't open the poppets in the injectors. But with any no-start testing must be done, do you have spark when it won't fire? Are there any codes?

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    wrgerstung, December 05, 2013, 11:25

    Thanks. Had fuel pump checked. Low pressure. Needs to be replaced.

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