I have a 2005 chevy silvarado with a litttle over 100,000 miles
i began to encounter it ideling a little rough but the rpms do move a lot
and this weekend i was on a 400 mile round trip and driving i found that it was harder to accelerate than usual. i replaced my spark plugs and have put the middle grade mobil gas in it.

have a feeling it might be fuel pump any help would be appreacuated !!

 

Hunter1880,

I am sorry to hear that you are experiencing issues with your Silverado. Have you spoken with the dealership to get a diagnosis? Also, is this the first time this has happened?

Thank you!

Elizabeth, Chevrolet Customer Service

 

yes i changed the coil changed the modual changed the crank possitioning sensor and still no spark what else could it be