LS - 1st and 2nd Gen (1990-2000) Discussion topics related to the 1990 - 2000 Lexus LS400

EGR tube replaced, no more exhaust leak!

Old 05-06-14, 09:08 AM
  #16  
OMAHA
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i have a '94 LS400 with these issues.....white smoke, exhaust leak near engine, kinda loud at times.....maybe the egr tube is the culprit! i did plug the ACV on the power steering pump which cut back the white smoke CONSIDERATELY, so i get some but not alot of white smoke on startup.....
Old 05-07-14, 04:14 PM
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peterls
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White smoke has nothing to do with EGR. EGR recirculates the exhaust gasses to be burned again, to reduce pollution but you wouldn't be able to tell the difference visually.
Old 05-07-14, 05:09 PM
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Originally Posted by peterls
It should be "corrugated" or - have an accordion bend in it to absorb the vibrations and allow for expansion/contraction due to temperature changes. I just don't know why they did not go with a flexible steel hose, like some guy did it... there is a write-up somewhere on the net, he just used off the shelf stuff from home-depot and made his own new steel hose that he fit in the ends of the old EGR pipe and it worked.
actually if you read that thread, the OP never said it worked in the long run. i believe it will work initially but over time the heat will destroy the gas line which he retrofitted. it was never mean to withstand heat.

my EGR tube has the accordian flaps, as they all should!
Old 05-09-14, 09:40 AM
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AHhh, well at least I can buy a new OEM EGR then and not wonder if I could have saved some cash by making my own
Old 05-10-14, 11:04 AM
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Hitman, did you have a "check engine" light on before replacing the EGR pipe? Anyone else knows if check engine should be on when EGR pipe goes?
Old 12-03-15, 12:09 AM
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Originally Posted by peterls
Hitman, did you have a "check engine" light on before replacing the EGR pipe? Anyone else knows if check engine should be on when EGR pipe goes?
Bumping an old thread, but my 97 recently started leaking at 255k miles, from lower passenger side when cold, so I'm thinking EGR pipe. Yesterday, it now has a CEL due to either bank 1 or bank 2 that stays on even after resetting it. After it does the drive cycle, the CEL comes back on due to the leak. So this pipe has to get replaced soon before it wears out the O2 sensors or pass. cat. converter.

Man, I've owned this car less than 2 months and I've already had to do a Timing belt/WP Crank and cam seals, Lower ball joints, Valve cover gaskets, PS hose leak due to petrified hose and assorted vacuum hoses breaking due to being brittle, Plugs/Wires, and a new Y-pipe due to some previous damage i didn't see when i purchased it. Definitely drives and rides A LOT better than my 92 Accord I upgraded from so I suppose its worth it.
Old 12-03-15, 01:56 AM
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Yeah you should start a new thread on how not perfect "Old cars" can be, even a Lexus.
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