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  1. #1

    Default Bad Fuel Pump on the 8.1 Vortec?

    I was doing a compression check on my truck the other day. When I took out the spark plugs they looked like crap and only burning on one side. I had just replaced the plugs not even 6 months ago. So I continued with the compression check and then got online to see what the compression read on a 8.1 liter should be I had know luck with finding it but I did read somthing about these trucks having bad fuel pumps. Does anyone know anything about this and if I do need to replace it do I need to order a new one or aftermarket one? Also I never found what the PSI should be in 8.1 all my reads where above 175 and I think that sounds right. Any help would be nice.Click image for larger version. 

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    LB7|2" lift|20" rockstar xd's|wrangler mud tires|Leer cap|4in turboback|volant CIA|boost increase valve|EFI by DTS|phantom gauges|6 speed ZF-6|solid mass flywheel|ceramic Kevlar clutch|High idle switch|55 gallon in bed fueltank|Edge insight|4 rigid dually|app radio 2|250watt kicker amp an 10" sub

  2. #2


    Quote Originally Posted by anneparker View Post
    I want to increase speed of my chevy car which I bought from a sale. I think it need full refurnishing and speedometer which is making obstacles for high speed. do you think i can get those.
    What make, model, year? We need more info.

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