2002 GS300 fuel filter packed full
#1
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2002 GS300 fuel filter packed full
My indy replaced the fuel pump and filter - located inside the fuel tank. He sawed the filter apart and both sides were fully packed with what looked like dirty sand. Do not see how any gas could have gotten through that filter at all.
Is this typical? It looked like someone had packed dirty sand in it and tamped it down. Is that typical?
Is this typical? It looked like someone had packed dirty sand in it and tamped it down. Is that typical?
#2
Lexus Test Driver
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yes its is, thats what its their for. Plenty have posted pics of this.
Also word of advise... Never pump gas if theres a tanker filling the tanks at the station. When they do this, it stirs up any crap that has sunk to the bottom of the underground tanks and while you're pumping, it all gets in your tank, probably where a lot of that came from.
Also word of advise... Never pump gas if theres a tanker filling the tanks at the station. When they do this, it stirs up any crap that has sunk to the bottom of the underground tanks and while you're pumping, it all gets in your tank, probably where a lot of that came from.
#3
My indy replaced the fuel pump and filter - located inside the fuel tank. He sawed the filter apart and both sides were fully packed with what looked like dirty sand. Do not see how any gas could have gotten through that filter at all.
Is this typical? It looked like someone had packed dirty sand in it and tamped it down. Is that typical?
Is this typical? It looked like someone had packed dirty sand in it and tamped it down. Is that typical?
#5
https://www.clublexus.com/forums/gs-...-filter-5.html
#66 and a few on from there people in the past believed it did, being six years ago i just wanted to see if there was a difference for the OP in their MPG.
#6
LOL...he later siad it was his right foot that made the difference. Seriously, how would increasing fuel flow increase MPG.
Of course there are some people on here that think changing a dirty air filer helps MPG too.
Of course there are some people on here that think changing a dirty air filer helps MPG too.
#7
y
Also word of advise... Never pump gas if theres a tanker filling the tanks at the station. When they do this, it stirs up any crap that has sunk to the bottom of the underground tanks and while you're pumping, it all gets in your tank, probably where a lot of that came from.
Also word of advise... Never pump gas if theres a tanker filling the tanks at the station. When they do this, it stirs up any crap that has sunk to the bottom of the underground tanks and while you're pumping, it all gets in your tank, probably where a lot of that came from.
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#9
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My indy replaced the fuel pump and filter - located inside the fuel tank. He sawed the filter apart and both sides were fully packed with what looked like dirty sand. Do not see how any gas could have gotten through that filter at all.
Is this typical? It looked like someone had packed dirty sand in it and tamped it down. Is that typical?
Is this typical? It looked like someone had packed dirty sand in it and tamped it down. Is that typical?
https://www.clublexus.com/forums/gs-...el-filter.html
https://www.clublexus.com/forums/per...s-at-100k.html
also EVERYONEinpeople e showed a improvement (againt except Jewcano)
https://www.clublexus.com/forums/per...s-at-100k.html
BTW changing a dirty filter allows air flow so if you use a straw to suck in air and you then change the straw to a pvc pipe which one flows more freely. let me put it in a different analogy, your home A/C system uses a filter in the return air plenum or filter box, if you dont ever change the filter the filter housing will get clogged and forcing the a/c unit to work harder which can make it freeze over as you have a AIR FLOW RESTRICTION. This works very similar to the engine in your car, if you engine is having to work harder to ingest air it can affect your mileage very simply
although toyota claims this to be a lifetime part, i would disagree personally
Last edited by sakataj; 06-02-16 at 12:00 PM.
#10
See page 14 of this test write up :
http://www.fueleconomy.gov/feg/pdfs/...02_26_2009.pdf
As far as getting less MPG with a clogged fuel filter, please explain to me how you happen to get better efficiency with a fuel filter that may flow a little freer. Seriously, if the filter was really clogged, your engine would run leaner and use less fuel at the risk of burning a hole in your piston. In all actuality, if the filter was really that bad, you would have issues on acceleration. On the highway, where you supposedly measured your MPG, your fuel draw is magnitudes lower than when accelerating. If you didn't have issues with the engine leaning out/bogging on acceleration, then you wouldn't see any manifestations at cruise.
BTW, was an electrical engineer at Delco years ago working with engine management systems.
My mileage in my GS300 can vary 2 MPG from trip to trip on the very same freeway leg which is over 2 hours. I would likely have to do 10 runs before and 10 runs after to show any significant data supporting any conclusion. LOL...I could probably wash my car and prove that a dirty or washed car gave me 2 MPG difference if I only used one trip!
Last edited by bruceb58; 06-03-16 at 06:35 AM.
#11
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Call me a kook then
all i know is i drove my car at 2200-2400 rpm for a 2 weeks prior to install (2 tanks) and 3 weeks after (3 tanks), yes BTW it was tortuous and my mileage improved.... i also made several runs to Nashville (which i used to do a lot) and a trip to ATL (which i also used to do a lot) and my mileage was better than any trips before
all i know is i drove my car at 2200-2400 rpm for a 2 weeks prior to install (2 tanks) and 3 weeks after (3 tanks), yes BTW it was tortuous and my mileage improved.... i also made several runs to Nashville (which i used to do a lot) and a trip to ATL (which i also used to do a lot) and my mileage was better than any trips before
#13
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I have been getting reduced mileage for some time; say 3-5mpg. The indy said that the clogged filter could cause that. He also said I could drive the vehicle in town for a while before I change the filter. He said that it would eventually stop the gas flow and I would have to call a wrecker. However he warned me not to take it on a long trip because the computer would lean it out and (as suggested above) it could damage the engine.
So I am going to check my mileage now to see if it has improved. Before I changed the filter when I showered down on the accelerator, there was little response - nothing like it used to be; it just had no pickup. Now that is all gone. Pickup is fine again.
Now I find that PepBoys wants $675 for two rear shocks. Sounds like a lot.
So I am going to check my mileage now to see if it has improved. Before I changed the filter when I showered down on the accelerator, there was little response - nothing like it used to be; it just had no pickup. Now that is all gone. Pickup is fine again.
Now I find that PepBoys wants $675 for two rear shocks. Sounds like a lot.
#14
Sakataj is it best to replace the whole pump or just the sock filter?
I see I can get it pretty cheap from rock auto like $40 but I think I remember people saying you have to swap all the O rings into the new one?
I see I can get it pretty cheap from rock auto like $40 but I think I remember people saying you have to swap all the O rings into the new one?