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Change Fuel Filter on '04 Trailblazer

Never done it before- could use advice on how to do it, what to look for...

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For starters make sure you relieve the fuel pressure. Also even though the vehicle is "higher" then a car, it is much easier to move around if you do raise the vehicle up in the air. Also the sheild shouldn't need to be removed. Look at the new filter to understand more how the quick disconnect clips work. Last and most important, even though the fuel pressure is out wear some sort of eye protection as there will still be some fuel that comes out. Below I gave you the procedure on how to relieve fuel pressure. Hope this helps and good luck....

Change Fuel Filter on '04 Trailblazer - 2_15_2012_10_43_53_am.jpg

Posted on Feb 15, 2012

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check the timing belt and see if it's missing cogs or even broken and stripped.. that'll do it

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SOURCE: replace fuel filter on 04 trailblazer ex

It looks to be attached to the side of the tank behind the sheild. It looks as though there is an access cover to get to it.There should be a skid plate, or sheild bolted to the tank brackets.

Posted on Jun 04, 2010

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1 Answer

Best time to change a fuel filter?

fuel filter replacement period is in the owners manual and depends on fuel quality and driving conditions
if you get water in the fuel , it should be change immediately, even if it was just done
dirty/dusty conditions , change it more often
around now would be a good time to change it and then under normal conditions again at 100.000 miles

Feb 15, 2016 | 2004 Chevrolet TrailBlazer

1 Answer

My 2003 chevy trailblazer idles rough and is missing while driving. what could be the problem?

check fuel pressure regulator for fuel in vacuum line ,check fuel filter , and alot of those models needed a top engine clean where u drip top engine cleaner through the air tube to clean valves .
we have done this action quite a few times with good results where i work
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My chevy has about 98000 miles. When is tune up recommended.what is involved in the tune up?

what engine? The fuel filter is in the fuel tank, Spark plugs should be replaced, throttle body cleaned, and the truck generally checked over, battery , belts, brakes, tires ect. Spark plugs, trans fluid, filter, transfer case fluid change, are all due at 100k. You should have the 100K service done. Of course they base that on if you have been following the service schedule. Your owners manual will list all things that are due.

Sep 14, 2011 | 2005 Chevrolet TrailBlazer

1 Answer

I have just hit 99k miles. What type of service do I need to have done on truck? Change spark plugs? I don't have the owners manual...

Well, not knowing what has been done previously, here's a list of some things that need to be done.

Manual says.....
Spark plugs, AC Delco 41-103's
Radiator flush

But these things should be done also, if not done already....
Clean your throttle body, this should be done more often than, maybe once a year...
Transmission filter with new fluid...or you can do a flush..use the new Dexron 6 product that GM has out now, good stuff.
Change your fuel filter and air filter
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Differential fluids
Transfer case fluid, if it's 4x4
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Feb 24, 2011 | 2006 Chevrolet Trailblazer

1 Answer

I just went to drive home after work and if seems like my trailblazer is not getting any fuel. is there a reset on the fuel pump or something that is easy to fix this problem? My other thought is that...

Before changing anything, you need to verify the fuel pressure at the fuel rail. If the pressure is low then the fuel pump or filter are suspect. The filter is accessible under the truck, but the fuel pump is inside the gas tank.

Oct 24, 2010 | 2004 Chevrolet TrailBlazer

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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That is in the tank and part of the sending unit. You do not need to change it on this model.

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Chevy trailblazer drags when stepping on the gas makes a slight humming noise

sound like possible fuel filter has some dirt in it you are suspose to change every timr you change oil or the fuel pump is over heating when you drive it try the filter first the

Jul 31, 2008 | 2005 Chevrolet TrailBlazer

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Fuel Filter

fuel filter is inside the fuel tank to change it would require removal of the tank from the truck.

Jul 23, 2008 | 2005 Chevrolet TrailBlazer

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