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how do i fix this problem..... or tell what it is??

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Old 01-13-2004, 06:02 PM
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Default how do i fix this problem..... or tell what it is??

Ok.... I had made a post a little while back

https://ls1tech.com/forums/new-ls1-owners-newbie-tech/123244-car-making-noise-ugh.html

ok, now that you have read that, the car never threw me a code or anything....

well yesterday my car threw a code for a loose injecter circuit (which has nothing to do with the noise) but i had brought it to autozone to figure out what code it was.... well they told me it was also throwing out the code PO400. The description of it is Exhaust Gas Recirculation Flow Malfunction...

now it all made sense that maybe that code has something to do with the noise, but after my boyfriend fixed the injection circuit, the SES light isn't coming on anymore, but the noise is still loud as ever....

do you think maybe having 02 simms would block that light from coming on? I am just so confused as to why i didn't have that code until something else on the car was wrong (and they don't have anything to do with each other)

how could i fix that noise, or what could be the matter!!

thanks for reading and sorry so long!

thanks, melissa
Old 01-13-2004, 08:57 PM
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You know I read your link & have seen this B-4 in my area.
I had a few cars come to the shop with a funky noise eminating from the exhaust.
From your description thats what it sounds like you said it was coming from??
"loud squeeling" "by right rear tire"
Anyways without hearing it, I have seen people playin' jokes on others with a piece called a muffler wistle.
The novelty shops sell them, you put them in the pipes & push them in w/a stick.
Damn things are hard to get out & sound weird much like you describe.
I dont know if that is your problem but??
Is it loud enough to put up a sound clip of it?
Old 01-13-2004, 08:59 PM
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well.... im not sure how to do a sound clip

but it isn't all the time... only when i start the car... is that how they are? i don't really know if that is it.... or maybe it could be
Old 01-13-2004, 09:06 PM
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It when you start it & on accel & high speed decel???
Old 01-13-2004, 09:40 PM
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no it stops when i rev it up
Old 01-13-2004, 09:54 PM
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check your air inj. hoses, and or air motor
if it only happens when you start it.
just a thought
Old 01-13-2004, 09:56 PM
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so does th description of the code mean its the EGR??
Old 01-13-2004, 10:05 PM
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It is a P0400? thats a EGR low flow code, so anything that can do that can be the problem.
The rearward noise is it possible the exhaust rubbing on the gas tank heat sheild, the over axle pipe gets close there in the right rear(passenger).
Old 01-13-2004, 10:10 PM
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EGR... how do i fix that, i mean i have no idea about that....
Old 01-13-2004, 11:40 PM
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ttt
Old 01-14-2004, 02:24 PM
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no one else?
Old 01-14-2004, 06:33 PM
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please help
Old 06-17-2007, 08:13 PM
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my car is throwing that same code right now, and there is no whine acompanying it. the noise you speak of could very well be coming from your rear..... im guessing it's the stock 10 bolt? how many miles are on her? answer honestly: how often does she get abused? if not by you, by your b/f?
has it ever dripped any fluid from the back of the car? A rear can cause the same noise you are describing, and will sometimes be intermittent. This is something that should be checked up on by a compitent mechanic...good luck.




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