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-   -   truck back fires and spluttering. please help! (https://chevroletforum.com/forum/silverado-fullsize-pick-ups-21/truck-back-fires-spluttering-please-help-55558/)

blu96silverado January 2nd, 2013 6:15 PM

truck back fires and spluttering. please help!
 
I have a 96 silverado 150k. 5.7 c1500. It starts and idles fine. When I accelerate it sputter and backfires. I replaced maf sensor. I'm stumped... any suggestions would b very helpful thanks

go-part January 3rd, 2013 10:29 PM

Have you checked the fuel filter and pump?

blu96silverado January 4th, 2013 10:40 AM

No I haven't. U know where those r located? How can I tell if there bad?

oldchevy January 4th, 2013 11:15 AM

Pump is in the fuel tank. Filter is under the truck in the fuel line. You can't miss it. To find out about the pump you will have to do a pressure test.

blu96silverado January 4th, 2013 4:19 PM

Thanks. How do I go about getting pressure checked. Don't have money to bring to mechanic just rather do it my self. Is there something I can buy?

kevinkpk January 4th, 2013 4:24 PM

Well, I don't know where you are located, but some parts stores offer free loaner tools. Not totally familar with your truck, but suspect on the fuel rail should be a schrader valve to plug a gauge in to check the fuel pressure. I am thinking the pressure should be around 50-60 psig.

blu96silverado January 4th, 2013 4:27 PM

Now when I check it is there going to b gas leaking everywhere?

kevinkpk January 4th, 2013 4:55 PM


Originally Posted by blu96silverado (Post 237232)
Now when I check it is there going to b gas leaking everywhere?

This should be a test port, plug in, turn on key, observe pressure


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