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I have a 2005 trailblazer that surge's I have replaced fuel pump and fuel relay nothing helps

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Did you change fuel filter.check fuel press.at fuel rail.now a days new stuff doesn't always work.

Posted on Apr 20, 2014

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6ya6ya
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Posted on Jan 02, 2017

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SOURCE: 2005 envoy Code po 410. Replace relay and air pump

try disconnecting the battery for 5 mins. see if the computer resets

Posted on Aug 29, 2009

techbuster
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SOURCE: air pump relay 2005 trailblazer

It is in one of 2 places. Either in the underhood electrical center(fuse block), or under the truck on the driver side frame rail, rearward of the ABS brake module assembly.

Posted on Aug 31, 2010

daves944
  • 1050 Answers

SOURCE: Where is the fuel pump relay in the 2005 Nissan

This should help

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Posted on Mar 14, 2011

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Replacing Fuel Pump Relay? I Have intermittent hunting for power have replaced fuel filter and air filter runs very well normally with maximum mpg but starts hunting when accelerating lightly this is


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If the fuel pump running when the key is turned on,could the fuel pump relay still be bad? If so where is the fuel pump relay?


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I have a 2005 trailblazer with a bad surge problem I replace fuel pump and fuel relay and when the car surge the fuel light come on please help


have you replaced the fuel filter or maybe you just got some bad gas which does happen maybe water in it

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1 Answer

How do I change out the fuel filter on my 2005 Trailblazer (6-cyl)?


The fuel filter for your vehicle is located inside the fuel tank and is part of the fuel pump module. There isn't an external filter that you can change. I believe that the filter is sold only as part of the pump module so if it is indeed plugged you have to replace the entire pump module. I would have the fuel pressure tested to be sure you actually have a filter problem before replacing this as it is quite expensive.

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My 2005 Trailblazer ran out of gas, now it won't start. It cranks and catches, but shuts right back off. Is there a fuel shut off valve? If so, where?


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Jan 16, 2010 | 2005 Chevrolet TrailBlazer

1 Answer

Replacement of fuel pump ,filter & its location.


  1. Try this, I had the same problem and I thought it was the fuel pump. My car would turn over but the fuel pump would not kick on. I changed out the fuel pump relay and and still nothing. I check the wiring to the fuel pump and it was not getting any power. Eventually I ended tracing the problem down to the power surge relay which is located by the battery it had gotten moisture inside it and burnt up the coil.

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