brokentv Posted May 30, 2012 Share Posted May 30, 2012 OK I have a 97 LGT non turbo and I have been noticing that when I hit about 3.5 thousand rpm's I hear this hissing/whistling high pitch sound. Sounds similar to a turbo. I have seen a few threads on this and they didn't seem to conclude. Just wanted to post this in case somebody has had similar problems and found out what it could be or even fixed it. Link to comment Share on other sites More sharing options...
I Donated broknindarkagain Posted May 30, 2012 I Donated Share Posted May 30, 2012 My AC compressor makes a noise like a blow off valve when I shift gears. -broknindarkagain My Current Project - Click Here COME AND TAKE IT "The only thing necessary for the triumph of evil is for good men to do nothing." Link to comment Share on other sites More sharing options...
monkeyposeur Posted May 30, 2012 Share Posted May 30, 2012 Exhaust leak. Link to comment Share on other sites More sharing options...
Baddog Posted May 30, 2012 Share Posted May 30, 2012 Exhaust leak. This. I have YEt to find mine. Link to comment Share on other sites More sharing options...
Zues Marine Posted May 30, 2012 Share Posted May 30, 2012 mine does this too ever since i took out the snorkus in the fender...i hate it!! Link to comment Share on other sites More sharing options...
SomethingWittyAsAUsername Posted May 30, 2012 Share Posted May 30, 2012 I have the same problem. The exhaust leak I found is the seam on my muffler. Once I patch that, I'll let you know Link to comment Share on other sites More sharing options...
dylandevine123 Posted May 31, 2012 Share Posted May 31, 2012 I have the same problem and I replaced the headers back. I still have the noise I feel like it something to do with the belt tensioner or something like that I dont really know tho I would like to know if this is problematic and if there is a way to fix it Link to comment Share on other sites More sharing options...
Stang70Fastback Posted May 31, 2012 Share Posted May 31, 2012 From the research I've done (I have the same issue) it appears to be a problem with the internal baffles in the muffler on the vehicles with the N/A, 2.5L engine (and maybe the 2.2?) Some sort of blockage occurs which restricts airflow and causes that whistling. I had noticed a bulge on one side of the muffler (where the seam is) so I'll be curious to know if... SomethingWittyAsAUsername... is able to solve the problem. However, from what I've found, it's an internal issue that can only be resolved with a new muffler. Which sounds expensive, until you realize (as I just did two days ago) that a brand new, decent quality muffler is less than $100 shipped on Amazon. Link to comment Share on other sites More sharing options...
Zues Marine Posted May 31, 2012 Share Posted May 31, 2012 well, i fixed the problem by clamping all of the clamps on the air filter box... so thats free and i recommend trying that first Link to comment Share on other sites More sharing options...
overspool Posted May 31, 2012 Share Posted May 31, 2012 mine does this too ever since i took out the snorkus in the fender...i hate it!! Yup, mine too. I'm going to pull a snorkus from the junkyard and put it in. I want my car quiet again. Link to comment Share on other sites More sharing options...
I Donated broknindarkagain Posted May 31, 2012 I Donated Share Posted May 31, 2012 Yup, mine too. I'm going to pull a snorkus from the junkyard and put it in. I want my car quiet again. If you're in town I might just let you take mine if you remove it. I'm undecided if I want it in there or not lol -broknindarkagain My Current Project - Click Here COME AND TAKE IT "The only thing necessary for the triumph of evil is for good men to do nothing." Link to comment Share on other sites More sharing options...
SpecBamf41 Posted May 31, 2012 Share Posted May 31, 2012 mine does this too and i CAN not find it. then i found a garret t3/t4 hybrid turbo. mystery solved BNR18g on 93oct Link to comment Share on other sites More sharing options...
Bassnectar Posted May 31, 2012 Share Posted May 31, 2012 my 1999 tercel has a similar whistle when you get on it. My old legacy had the same thing and I diagnosed it to an exhaust leak from under the headers when I seafoamed the engine Link to comment Share on other sites More sharing options...
Kennyfvholla Posted May 31, 2012 Share Posted May 31, 2012 I've already told people this quite a few times... The noise is coming directly from the tail pipe. It's a problem with the muffler. I know this because I swapped on a modified WRX muffler at one point and the noise went away. Plus, I had someone step on the gas and rev the engine up and heard it come from the tail pipe. This is not to say that it is the only place a whistle noise can come from. So, my suggestion of what the problem is may not apply to you. My new 98 LGT wagon makes the same exact noise from the muffler, but it also makes a slightly less noticable noticeable whistle from another hole in the exhaust piping. Link to comment Share on other sites More sharing options...
Zues Marine Posted June 1, 2012 Share Posted June 1, 2012 So, my suggestion of what the problem is may not apply to you. but by you making this thread, it helped others find causes elsewhere so nice Link to comment Share on other sites More sharing options...
Lsnaple Posted June 1, 2012 Share Posted June 1, 2012 I had a whistle coming from the flange at the axle back. Removed the axle back and the whistle is gone. Link to comment Share on other sites More sharing options...
Baddog Posted June 1, 2012 Share Posted June 1, 2012 I have a different muffler. Actually have a completely different exhaust header back. Have a whistle sound. Link to comment Share on other sites More sharing options...
Lsnaple Posted June 1, 2012 Share Posted June 1, 2012 Do you have one of those cone filter intakes? That kinda makes a whistling sound. Link to comment Share on other sites More sharing options...
TexasLegacy2.5GT Posted June 3, 2012 Share Posted June 3, 2012 My AC compressor makes a noise like a blow off valve when I shift gears. ^^^Honestly, I sort of like it! Link to comment Share on other sites More sharing options...
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