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1998 Chevrolet Blazer Question: starts hard when cold

 

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wrgerstung, Park City, UT, December 04, 2013, 09:09
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no problem when started

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  • Answer #1

    cardocIII from Gillespie's Auto Service, December 04, 2013, 09:57
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     Master

    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, 08:25
     Rookie

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

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