installed a new fuel filter; made a huge improvement
#1
installed a new fuel filter; made a huge improvement
I installed a new fuel filter in my 4runner today and, wow, the idling is right back to 700rpm. I can't believe how a new fuel filter made a huge improvement. I thought it was dirty throttle body but my guts tell me it was fuel filter. Now the engine is running smoothly on idle.
The problem I noticed was the rpm bounce up and down on idle (700-900rpm) and sometime idle stuck at 900 rpm while idling. And also, I put cruise control on freeway and it does bogging on freeway for a split second.
Just wanted to share with this with you even if you have similar symptoms what I had on my 4runner. Hope this helps.
The problem I noticed was the rpm bounce up and down on idle (700-900rpm) and sometime idle stuck at 900 rpm while idling. And also, I put cruise control on freeway and it does bogging on freeway for a split second.
Just wanted to share with this with you even if you have similar symptoms what I had on my 4runner. Hope this helps.
#2
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It does puzzle me how Toyota can say this never should be replaced; it is a lifetime part?.....
4 years or 60,000 miles has always been a good rule of thumb for me for a fuel filter replacement.
4 years or 60,000 miles has always been a good rule of thumb for me for a fuel filter replacement.
Last edited by J2F42C; 10-26-2010 at 05:24 PM. Reason: spelling
#6
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Here are some threads I found useful. I haven't attempted the fuel filter replacement yet, but I plan to in the next year.
I changed the fuel filter on my 4Runner today
3rd gen Runner fuel filter changeout
"Not-So-Lifetime" 3rd Gen Fuel Filter
I changed the fuel filter on my 4Runner today
3rd gen Runner fuel filter changeout
"Not-So-Lifetime" 3rd Gen Fuel Filter
Last edited by pendrag; 10-26-2010 at 09:19 PM.
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#8
No you don't need to drain the fuel tank. I just took old filter off and new filter in 15 mins. Then turn ignition on(not start the engine) for about 1 min, letting fuel pump doing it because you lose gas in the line. Then start the engine on. Its easy as a b c.
Hope you are kidding. Redline is at 5,500rpm. lol
Hope you are kidding. Redline is at 5,500rpm. lol
Last edited by 4rx; 10-26-2010 at 10:42 PM.
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No you don't need to drain the fuel tank. I just took old filter off and new filter in 15 mins. Then turn ignition on(not start the engine) for about 1 min, letting fuel pump doing it because you lose gas in the line. Then start the engine on. Its easy as a b c.
Hope you are kidding. Redline is at 5,500rpm. lol
Hope you are kidding. Redline is at 5,500rpm. lol
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so hopefully this link works as an external link, but while lookin to price the fuel filter, I found that there is also another filter for the fuel pump itself inside the tank. Any idea if those get clogged/dirty too? I only imagine the inline filter being dirty after it passes through the one in the tank first...
http://www.toyotapartszone.com/Page_...reName=MAJ667A
http://www.toyotapartszone.com/Page_...reName=MAJ667A
#12
hahaha......
Fuel filter and rack bushing kit are the two things inline for me to do before winter. I've got a different car in the garage to rebuild the head, hone the bores, re-ring and replace bearings on. Trying to get that done asap, so we can sell the darn thing.
#13
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I've been running Nippon filters, not really sure of the difference between the NipponDenso product line, but they are a bit cheaper and include the bracket
#17
My 4runner is right now 131,000kms (81,400 miles). I'd say about 75,000 miles that fuel filter went bad. It was original fuel filter.
My gas mileage improved noticeably. I haven't calculated how much better mpg I got now, probably increase 2-3mpg or so. I can't remember when last time the engine run so smooth but I love my 4runner more than ever now A bit more power as well.
My gas mileage improved noticeably. I haven't calculated how much better mpg I got now, probably increase 2-3mpg or so. I can't remember when last time the engine run so smooth but I love my 4runner more than ever now A bit more power as well.
Last edited by 4rx; 11-01-2010 at 12:15 AM.
#18
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so hopefully this link works as an external link, but while lookin to price the fuel filter, I found that there is also another filter for the fuel pump itself inside the tank. Any idea if those get clogged/dirty too? I only imagine the inline filter being dirty after it passes through the one in the tank first...
http://www.toyotapartszone.com/Page_...reName=MAJ667A
http://www.toyotapartszone.com/Page_...reName=MAJ667A
It's more of a strainer to keep larger particles out of the pump. Mine was still in very good shape so I left it when I changed my fuel pump.