Questions about Exhaust systems, Catalytic Converters and Headers/Manifolds

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2
votes
1answer
997 views

2003 Honda Civic 1.7 vTec - White Smoke from the tailpipe

I have a Honda Civic 2003 gx 1.7 liter vTec stick shift 4 cylinder. Just today I had to put oil in my car. Drove for about 5 minutes got to a light and when I shifted into first gear a white cloud of ...
2
votes
1answer
168 views

How should I diagnose an exhaust “howl” when descending through 3200 rpms?

As mentioned previously, I have a 2004 WRX wagon with a stainless Prodrive circular-tip axle back installed around 2006. Lately, the weather has been nice enough to drive with the windows open and ...
2
votes
1answer
83 views

Removing the smog pump on an 84 Ranger

I have an old 84 Ranger with a 2.8L V6 and I'm trying to squeeze out as much power out of the engine as possible. The cat had been removed by the last owner, so the pump was essentially just pushing ...
2
votes
2answers
305 views

Is there a good online resource for exhaust system design? (theory)

I am looking for information on the effects of changing certain criteria in an exhaust system relating to its performance and its sound. I am unable to find any resourses relating to this on the net ...
2
votes
1answer
822 views

'04 Nissan Sentra - Smoke from engine compartment after long drive

My sister has a 2004 Nissan Sentra with a 1.8L engine, and a day or two ago she started noticing some (not a lot) smoke coming from the engine compartment after driving for a long time (i.e., more ...
2
votes
1answer
2k views

Attaching poorly-fitting exhaust components without welding?

I recently replaced my muffler, and attached it to the existing pipe using clamps around a short coupler pipe (sorry, I don't know the right name for these things) that fits around the outside the the ...
2
votes
1answer
2k views

High short term fuel trim on one side when starting car?

2003 Ford Crown Victoria V8 Engine Dual exhaust 2 cats & O2 sensors per side Since some time last year I've been getting an error code throw up, with seemingly no regularity: P2197 - O2 stuck ...
2
votes
2answers
346 views

Muffler inlet corrosion problem

My 2001 Honda Civic needs a new muffler every two (2) years or so, because the inlet pipe corrodes just after the union. Is this a common problem, or would installing a better quality muffler prevent ...
2
votes
1answer
936 views

What could be causing a distinct exhaust drone in a tight band around 3250 rpms on a 2004 Subaru WRX?

EDIT: Additional information provided by LovelyWife(TM) - listening outside the car, she has proclaimed that the rattle / buzz / drone / resonance is coming from the front of the car and sounds like ...
2
votes
1answer
82 views

Bad exhaust leak or valve interference after HG change?

2006 Volvo s40 2.4i I replaced my HG the other day (I've done a few before with no problems). I was very careful marking everything. Locking the cams together with a cam locking tool specific for ...
2
votes
1answer
136 views

White smoke is coming from my engine. how do i find out what it is?

I own a 92 chevy lumina, when i drive or let it run for a little bit it will smoke from underneath the upper radiator hose. it is not the actual radiator hose as i changed it thinking it was that. ...
2
votes
1answer
348 views

Dirt bike silencer core cracked/rusted

After removing and disassembling my FMF Factory 4.1 dirt bike silencer, I saw that the inner core was cracked and extremely rusty (having the potential for more cracks). I definitely want to fix this ...
2
votes
1answer
812 views

Are there any alternatives to the OEM muffler for a Volvo XC90?

I've been looking for an alternative to the OEM muffler for a Volvo XC90 2.5T AWD. There are a number of other Volvo vehicles that use the same drivetrain, but not one of the national muffler shops ...
2
votes
0answers
255 views

(Video) Very Loud Hissing/Spraying Noise, Transmission? [closed]

Ok, very weird situation: 2001 Mitsubishi Montero Loud hissing sound coming out of front passenger wheel well when accelerating. Here is a video: https://youtu.be/tiSFdoniRm0 I have put it in park ...
1
vote
1answer
73 views

Gasket sealant with exhaust manifold

I am about to reinstall my exhaust manifold on a V6 Tacoma and I was contemplating the need for gasket sealant. When the old one came off, it didn't look like it had any sealant so my guess is no. ...
1
vote
3answers
3k views

Exhaust Flame Kit

I have been searching over the past week or so trying to educate myself as much as possible before going ahead and trying to build an exhaust flame kit from scratch (the ones on sale on the internet ...
1
vote
2answers
269 views

Can turbochargers cause engine damage gathering dirt and other particles from the air

I have been researching turbochargers and since they use outside air and exhaust to improve engine function couldn't that harm the engine? Or do I not understand the principle? Can't particules from ...
1
vote
5answers
6k views

How to determine by ear which part of exhaust needs replacing?

I have a 1.3L Skoda Felicia, (carburetter engine without catalytic nor other gimmicks). Since past 1-2 months I would hear the exhaust sound has changed, it became more and more audible and at full ...
1
vote
1answer
570 views

What's the purpose of the cover on the catalytic converter?

On my 1990 Honda, it's falling apart. I'd like to just rip it off; will that cause any problems? More specifically: will the car pass New York state inspection with a missing cover?
1
vote
1answer
72 views

2000 Toyota Celica GTS aftermarket exhaust system

I want to get a MagnaFlow Cat and Muffler. I need confirmation that the parts I've found online will indeed fit my Celica. I'm ignorant when it comes to cars (I filled the radiator coolant overflow ...
1
vote
1answer
31 views

Hard vibration when idle under 1000 rpm

I have an Honda S2000 2002,137000km. Yesterday, while running on the Track I lost the two spring bolts on the header/tespipe... so the car started shaking badling and caused my aem v2 intake to loose ...
1
vote
1answer
107 views

Damaged Muffler Degrades Performance

I purchased a replacement muffler from the internet for my 2004 Xterra. It arrived yesterday but had some noticeable dents in the resonator. My question is: will these dings degrade the sound ...
1
vote
3answers
116 views

2013 Subaru WRX - Stripped exhaust bolt

I got an exhaust and I was putting it on my car (2013 wrx) and had to disconnect the exhaust after the midpipe. The bolts were rusted so I PB blasted them, and then got one set of bolts off. When I ...
1
vote
2answers
105 views

1989 Nissan pintara problem

I have a 1989 U12 2.4l Nissan Pintara. It started running really rough one day and when I got home the exhaust manifold was glowing red hot. I changed the catalytic converter and it still is running ...
1
vote
0answers
518 views

Changing Exhaust on Royal Enfield [closed]

I want to change bend pipe and exhaust on my Royal Enfield Electra 5 speed 350 CC bike, it has old engine (NOT UCE). To my knowledge there are too many options like. Free flow mufflers, short bottle ...
1
vote
1answer
205 views

Volvos with the same parts as the Volvo 440 GL with 2 liter motor?

I have an old Volvo 440 GL (~1994) and I need to find a part to the exhaust system that costs the same amount as the car itself if bought from the Volvo company itself: this is the flange part in the ...
0
votes
1answer
692 views

Persisting 1998 Malibu Exhaust Problem

I am having a problem with a 1998 Malibu. I keep getting several codes but primarily P0420. I have replace the Catalytic Converter twice. Both oxygen sensors have been replaced. I have checked the ...
0
votes
2answers
132 views

2006 Scion Tc Base - lots of vibration and bad smell from exhaust

2006 Scion Tc base automatic transmission, has 149k miles on it.The car used to vibrate a little at idle. It suddenly started vibrating a lot. It is shaking as if there's an earthquake! Idle rpm at ...
0
votes
1answer
60 views

Chiptuning for a car with DPF (Diesel Particulate Filter) is a bad idea?

I know that it is possible to disable DPF (Diesel Particulate Filter). I'm wondering how bad it could be to leave DPF (Diesel Particulate Filter) functioning and add a chip to a car?
0
votes
1answer
296 views

Blue smoke upon acceleration and pinking

I have a Y12 Wingroad Nissan. While driving at 100km/hr and I stop, and begin driving again, I see a lot of blue smoke from exhaust for a little while. I also get a flat spot and pinking when ...
-1
votes
1answer
117 views

Suggestions for replacing/upgrading exhaust/silencer for a 125cc Motorbike [closed]

I have a 125cc Yamaha Gladiator SS125, which is about 3 years old. I had my stock air filter (paper-based) removed and installed a K&N conical filter about a year ago. I wanted to know if anyone ...