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Fuel Pump Replacement

8

89 Blazer Bud

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My 89 Blazer is in need of a fuel pump replacement and I am thinking about cutting an access panel in the floor
and wonder if any one has the dimensions as to where to cut and how big an area to cut I thought that some one
had posted this information but I can't find it any help would be great.
Thanks
Bud
 
and use a acdelco pump and new filter sock .

sorry truck guy here no specs on cutting . someone will chime in .
 
89 Blazer Bud said:
My 89 Blazer is in need of a fuel pump replacement and I am thinking about cutting an access panel in the floor
and wonder if any one has the dimensions as to where to cut and how big an area to cut I thought that some one
had posted this information but I can't find it any help would be great.
Thanks
Bud
Click to expand...
Using the search feature I got these ...
Post 1
Post 2
 
Here you go:

full


full
 
Just curious, but is replacing a fuel pump on a TBI Blazer/Jimmy really that difficult without cutting an access hole? I know you would have to drop the tank etc. and probably a real PITA. I had a shop do it for me when I needed one so I’m not really sure of how involved it is to do it the drop tank way :dunno:
 
89 jimmy said:
Just curious, but is replacing a fuel pump on a TBI Blazer/Jimmy really that difficult without cutting an access hole? I know you would have to drop the tank etc. and probably a real PITA. I had a shop do it for me when I needed one so I’m not really sure of how involved it is to do it the drop tank way :dunno:
Click to expand...
just fun dropping the tank and re-installing it . just 10x better / faster /less hassle with access door hole .
 
It's pretty much for easy access to the pump, if that's all you are working on.

A lot really depends on the hoses that are connected to the pump and tank. Once you have everything out of the way to drop the tank, you'll need to remove the filler hose from the tank or the filler neck. It can be a real pain if the hose is stuck and you don't want to damage it, trying to remove it, especially if you can't find a replacement. Same goes for the smaller vent hose next to it.

If you have an access panel, you won't need to do anything with the filler hose. The small vent hose can be removed from the pump with the rest of the lines and then just remove the pump. A lot faster, as @sweetk30 mentioned.

A plus is you won't have to worry about weight/mess if there's gas in the tank.
 
What tool do folks use to make the cuts without overshooting into the fuel lines and such?

I keep thinking about this, but I have no carpet and my cargo area is nicely line-X'd, so it's a tough call.

Someone should make a kit with a corrugated panel to use that lines up with the ridges in the bed.
 
Bed patch panels have the same stamping as the stock bed floor--you could cannibalize a piece off a junkyard donor bed too..
If you make clean cuts you can use the piece you cut out with some flat metal welded or riveted to the bed floor to make a cover too..
 
diesel4me said:
Bed patch panels have the same stamping as the stock bed floor--you could cannibalize a piece off a junkyard donor bed too..
If you make clean cuts you can use the piece you cut out with some flat metal welded or riveted to the bed floor to make a cover too..
Click to expand...

Of course, didn't even think of patch panels. I've been in Tucson for almost 10 years, we don't use patch panels here... ;)
 
Most square body trucks up here ARE just a cluster of patch panels welded ,riveted,or screwed together ! :doah:..
 
When I had my 87 this is what I did. I went to the spot welds and cut them out then used what I cut out for a patch panel and then tapped the holes I had drilled out. It's a bit of work but as you can see I had plenty of space to work. It was my first one, so hindsight on this I will only go to the inner spot welds next time. Be careful those cutoff wheels will go thru all that stuff underneath if you don't be careful

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