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Fuel filter replacement question. #1033540 08/25/11 03:14 AM
Joined: Jul 2011
Posts: 4
Coondog Offline OP
Need a Spot
Reading the Haynes repair manual for my 89 Yota I read that I need to de-pressureize the fuel line beofre taking off the fuel filter. I have no idea what that means can someone explain what I need to do and why?

Thanks in advance!

From the Off-Road World
Re: Fuel filter replacement question. [Re: Coondog] #1033541 08/25/11 03:48 AM
Joined: Oct 2002
Posts: 15,887
kewlynx Offline
Toyota & Classifieds Moderator
The line pressure is a LOT higher than it is for a carbed Toy engine. You'll get fuel all over the place if you don't.


Crack gas tank cap.

Easier to loosen fuel lines if you leave the filter bolted on. You can either loosen the line slightly and let it bleed off, or loosen the line at the fuel manifold. I do the former.

You can also find this info in the 93 FSM in the sticky at the top of this section. OR HERE

Take some time to become familiar with our website; lots of good stuff here.

Store or dispose of your dirty rags/fuel safely so as not to burn anything down later. <img src="/forums/images/graemlins/shame.gif" alt="" /> <img src="/forums/images/graemlins/shame.gif" alt="" />


Democracy is two wolves and a lamb voting on what to have for dinner. Liberty is a well-armed lamb contesting the vote.

**ubi apis- ibi salus**
Re: Fuel filter replacement question. [Re: kewlynx] #1033542 08/25/11 05:40 PM
Joined: Apr 2000
Posts: 4,230
OOP'S Offline
Roll Me Over
All the above, plus do it when the engine is cooled off!!!

David Fritzsche
1990 Ex-Cab V-6,5-speed, with a few mods
04.5 CTD Dodge 2500 Ram--Tow Rig
Roseville, CA

"Serenity through Sobriety"
Re: Fuel filter replacement question. [Re: OOP'S] #1033543 08/26/11 05:32 PM
Joined: Sep 2005
Posts: 970
RatLabGuy Offline
Rock Warrior
And be prepared for the fact that the thing is NOT easy to get to.

With 200+ Billion electrical parts, the world most complicated machine is inside your own skull.

Question Reality.
'89 Rnr DLX "SR4.5", 32s w/ 5.29 locked f/r blah blah
Re: Fuel filter replacement question. [Re: RatLabGuy] #1033544 09/04/11 10:59 PM
Joined: Aug 2003
Posts: 2,854
Greg_Canada Offline
Roll Me Over
Get a clean jug and drop the line into the jug... i've had a litre of gas come out before the pressure goes down (really don't know how it does that)...

89 4Runner
3" BL, M/T locks, 33"bfg mt, bilstein, Kayline, tubebumper, toyotafiberglass panels
TBI: Elocker,3.4 w/ORS,b+b,S2Sstg2cams,arias pistons,P+P intake,TRDs/c,URDpullies+7th,downey headers,MAPECU2,WEGO WB, SupraMAF,walboro255,stg4clutch, EPaOo2 sim
Re: Fuel filter replacement question. [Re: Coondog] #1033545 09/14/11 02:58 AM
Joined: Jul 2011
Posts: 4
Coondog Offline OP
Need a Spot
Well I got the filter changed. I was kind of a pain in the arse. A different PIA than my old 87 Chevrolet, but none the less a PIA!

I didn't do anything but disco the lines from the filter. It bled about a measure cup of gas out. The tank was more or less empty... that I didn't find out untill I took the flatbed off and removed the pump LOL!!

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