i droped a bolt for my fuel filter and cant find it (the one that holds the filter on) do i need bolth of them????? any help A.S.A.P. thanks

 

How funny. I did exactly the same thing just yesterday. One bolt just vanished during the process of replacing the filter.
I'm not too worried about it, I put the bolt I had into the bottom mount hole, and it seems pretty well attached now.
Just my .02

B

 

Ok thanks that was what i was planing on doin if it wouldnt hurt. thanks again

 

one bolt will be fine

 

Ok cool i got it in she seams not to be strugglin for fuel any more (thats a plus) lol well thanks for the help

 

Just curious to know if you lost any mileage with the new filter. i had an 88 and now a 91 4runner and noticed i lost good mileage when i replaced fuel filter on both trucks??

 

im not sure just got it replaced and havent drove around yet. i would think it would help not decrease

 

Yeah, I don't see how swapping a new fuel filter in would decrease efficiency.

If anything, it should increase filtration and flow rate, giving an increase.

 

Although you should be fine with the one bolt, Id say go to your local hardware shop and pick up a similair bolt and put it in. Maybe its just me but if I take a bolt out, I make sure I put one back in.

 

lol just find a bolt around the engine that you could use its a 10mm right ?

 

So that's where those bolts went! All right then Elton, fess up! Seriously, shouldn't be any trouble at all finding a bolt that'll work. Take the one you got with you, when you go to Ace/TrueValue, or fricken Home Depot, whatever. I bet you'll be out the door with one for under $.50.

 

My gas mileage DEFINITELY dropped after I replaced my fuel filter in my 88.

 

That makes NO sense whatsoever! Did you change something else besides the filter??

 

Almost all bolts on a toyota are either M6x1.00, M8x1.25 or M10x1.50. I would bet that the one that holds the fuel filter on is a M8x1.25. Easy to find at the hardware store. I got sick of droping bolts or breaking them so just last week I went to the hardware store and bought an assortment of the common sized bolts in different lenghts. That will save me from making a trip to the store in the middle of a job.

 

Not Home Depot. I tried to get a bolt there, and was told they do not carry metric.

 

In reference to the loss of MPG after the filter switch, are you sure you put the filter in the right way?
I noticed when I was changing my filter the other day that the previous filter (by the previous owner) was installed backwards. I don't know what the filter is like on the inside, but trying to flow it backwards might restrict fuel flow. When installed correctly, the thick "flange" end of the filter should be forward.
IE, the line from the tank goes to the bigger end (which should face the front of the truck) and the line to the engine comes from the smaller end (rear) and heads up to the fuel rail.

Just my .02

B

 

That seems to make some sence to me. If the fuel filter was clogged the pressure and flow would go down making the engine run leaner (better MPG)

 

Every fuel filter I've seen has FLOW and an arrow pointing the way stamped on it lol. How do you mess it up?

Rob

 

A fuel filter has NOTHING to do with an engine running lean or rich. The ECU, injectors and intake air do that. What a fuel filter WILL do is reduce the flow of fuel to the injectors. The fuel system normally runs in the low to mid 40s PSI pressure. If you suddenly apply full throttle (WOT) with a clogged filter, it's going to reduce the pressure somewhat until the pump catches up. Therefore, you would probably only see any difference with a sudden appplication of WOT or a steady state WOT at high rpms (top speed, for example).

It would have to be PRETTY DANG BAD to affect low rpm response; I don't think that I've ever seen one THAT bad. A clogged filter will also make everything work harder to make up for it; notably, the fuel pump.

Any fuel economy increase from a fuel filter change alone is going to be very small, but I still can't understand why it would go DOWN unless your newfound power is going to your head (foot)...

 

ATTENTION TO DETAIL; a common problem in today's society, I'm afraid...