Question about 1999 Chevrolet Silverado 1500

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Have a 2001 Silverado 4x4 W/5.3 engine Missing..

Have a 2001 Silverado 4x4 W/5.3 engine. Started missing terribly about a day after I added some seafoam.. Ended up with **** all in my injectors and replaced fuel rail and injectors + fuel filter + 2 of my new plugs + cleaned fuel line from filter out to engine. Ran good for about an hour and has a slight miss again now with a flashing SE light which I assume is telling me it is missing on a cyl or something. Also, when all the missing started the motor started squealing like crazy and that was the intake gasket which I had replace too. Have spent 600 bucks and it's missing again! What should I check next?

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  • seager317 Sep 09, 2009

    Well - he put the intake gasket in with the fuel rail. After that fuel rail stopped up terribly he went to the salvage yard and got another one - put it in after cleaning the fuel line and replacing fuel filter. Started running well - thought the prob was fixed. I drove it about 20 minutes and it started developing a miss again which is why I would not think spark plug but I really don't know what to think at this point.



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The rest of those new plugs would be a good start. Also, did you replace the intake gasket again or just put it together correctly the second time?

Posted on Sep 09, 2009


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