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2005 chevy trailblazer_lt_ext
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Discussion Starter · #1 ·
Today I had to take my truck to the dealer to get a few things taken care of that went bad soon after i had bought the truck.

Now for some quick history, i bought the truck used from the used wholesale lot at Humberview. No extra warranty or nothing. Just the truck. i went and told the dealer about these problems i was having the last few weeks, and they ended up taking care of it at their cost. They said the vehicle was checked, but since there was a problem so soon, they would take care of it!!!

1. my gas gauge went out, about 2 weeks ago. Every time I would fill it up, it said it was empty hahahaha. And take a lot of driving to get it to come back to normal operation.

2. My rear glass (left) hinge was busted. the glass didnt sit flush at the top with the roof, and the brackets on the inside were not only broken, but missing a bolt!!! n The glass closed fine, the only reason i noticed it, is because i was rust proofing and greasing the frame and hinges of the truck recently after i did a seafoam treatment and oil change (next is the trany!!). I was upset something like this was not addressed before the truck had completed the certified used vehicle certification. Either way, they said it would be taken care of at their expense!!!

I dropped it off this morning 10:23am, its done now 2:35pm, so ill be leaving in a bit to pick it up. Pretty good time considering it didnt get into the bay untill about 11am.


I am interested to find out if they had to replace the whole fuel pump and sending unit, or was the sending unit a detachable / replaceable part??

Why? because a brand new fuel pump and sending unit would be good for another 100k(ish) instead of worrying when the one i have will go, hahaha.

The reading i have done tells me that since i have an 05, my fuel filter is in tank, where early models had an external fuel filter that they could service. the in tank filter cant be serviced because its part of the pump (i made sure to ask the to flush the tank and check / clear debris since they had to drop the tank and it was basically empty anyways) and that the sending unit was part of the pump unit as well. if they are 2 seperate pieces, then it will be cheaper to service my self if i have to in the future. where as if its all one unit, pump /filter / sending unit.....its nearly 3x the price!!

As soon I get my truck home, and talk to the guy in the shop. ill let you know what exactly was done, and ill get some part #'s if possible.


I hope this will help some people diagnose, and answer some questions about the intank fuel system, and wacky gauge operation.


cheers :),

Z :thumbsup:
 

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Premium Member
'05 Chevy TB EXT
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5,673 Posts
Dear Mr. Zombie ...................

I guess by now that you've learned that the pump and sending unit are the same thing - or you're dead by now and this is a moot post anyway.

Either way --- why do you like to run below 1/4 tank of fuel? You said it's mostly empty all the time. That just kills the poor pump - because it needs the gas covering it to lubricate and cool the bearings. At about 1/4 tank, it starts to emerge from the fuel level.

AND quit worrying about the filter in the tank.

ALL the time the pump runs, it's drawing fuel from the bottom of the tank - and true to it, I have NOT SEEN anything substantial inside modern fuel tanks - maybe since 1995 or so.

OK --- mebbe a tiny plastic shaving - but it cannot get into the pump.​

I'd be more worried about itinerant monkeys getting their feet stuck in the filter than to worry about a non-problem.

Doh! You don't actually live near any monkeys - do you? If so - forget my last part. But I hear Canada's full of monkeys - be vewwy careful!)

My job is done here --- driving stakes in these old zombie threads.
 
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