Motor Vehicle Maintenance & Repair Stack Exchange
Motor Vehicle Maintenance & Repair Stack Exchange

Questions tagged [exhaust-manifold]

44 questions
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What is this yellow powder on my exhaust manifold?

I took off the heat shield from the exhaust manifold on my 2003 Nissan Primera while looking for an exhaust leak, and I noticed this yellowish poweder / dust on it: Any ideas what it is? EDIT Sept. 19th 2017 So I wiped a section of the yellow…
Robert S. Barnes
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How to test for a leak in the exhaust manifold gasket?

I suspect that my 1999 Volvo V40 T4 has a leaky exhaust manifold gasket. In winter there used to be some odd faint whistling while the engine was cold and now I'm trying to find the reason of a ticking sound that is audible when revving the car…
I have no idea what I'm doing
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What socket fits the Catalytic-converter-to-Exhaust-manifold stud?

I'm trying to replace the exhaust manifold on my 2010 Chevrolet Equinox (2.4L 4-cylinder), and there are studs which connect the catalytic converter to the exhaust manifold. I cannot, for the life of me, find the name of the head on these things. I…
R. Gosman
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How to retighten exhaust manifold nuts?

I changed my car cat converter as it was giving PO4020. After driving for 2 weeks I noticed soot mark as shown in the image above. There is no audible leak sound (tapping) at idle and when revving. When driving there is a slightly "hollow" sound at…
Andrew Tan
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Broken Exhaust Manifold Stud - Replacement part specs or part number

I was changing the Exhaust Manifold on an '09 Chevy Malibu. When tightening the bolt with the new one on, I twisted the whole bolt and stud off. So I have a couple issues. The broken stud is now left on the back of my engine. Assuming I can remove…
Dylan Cross
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Broken Exhaust Manifold Stud - How to remove?

I was changing the Exhaust Manifold on an '09 Chevy Malibu. When tightening the bolt with the new one on, I twisted the whole bolt and stud off. So I have a couple issues. The broken stud is now left on the back of my engine. What should I do to…
Dylan Cross
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Stripped header bolt hole. Can I repair w/o taking out the engine?

So I installed new headers onto my 95 mustang GT with a friend who "knew what he was doing" until he stripped one of my manifold bolt holes. I know I can either insert new threads or tap and dye it, but I want to know if I need to pull the engine to…
Brian
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On a 2004 Mitsubishi Lancer, Can a separated catalytic converter be re-attached to the exhaust manifold?

My question title pretty much covers it. This is a 2004 Lancer. The family car, not the sport version. These pics might help: Can this be repaired without replacing the whole unit? (That's an apparently cheap aftermarket piece and it's out of…
TecBrat
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Can I cut these two bolts to remove the exhaust manifold on a 99 Ranger

I'm changing the head gasket on this truck. Here you can see the exhause manifold bolted onto the upper intake, which I am trying to remove. And here is the reason I would like to remove the exhaust manifold from the rest of the exhaust. One of…
dolphone bubleine
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Trying to fasten a steel tube to an exhaust manifold

Does anyone have experience trying to fasten/connect a small diameter steel tube to a cast iron exhaust manifold? I'm working on a 1979 Ford F-100 with a 300 CID/4.9L inline 6 engine. Part of the emissions system includes a steel tube that fits…
wdon
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Removing upside down flange nut in a deep hole

My friend worked on my car to replace the exhaust manifold/cat converter gasket and I noticed rattling noise as if something was loose. Checking with my a bore-scope camera with my phone, I saw the flange nut being put the wrongway in the manifold…
ShanjayG
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Coolant flows straighr from rad to muffler?

Had my 2008 pathfinder towed last week it broke down and I thought it was a starting issue due to corroded post clamps, replaced those and it runs, but... now filling the rad the fluid runs straight to the muffler where it pours out
Gregg Woolman
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Could this be the source of an exhaust leak

I originnaly thought my exhaust leak in my 93' miata was from the exhaust manifold headers as there was some soot on the heat shield but after removing it and looking at the down pipe I see this piece of metal between the manifold and the down…
method
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2000 Camaro headers/Borla

Just bought 2000 Camaro stock and looking to add headers and Borla exhaust. Thinking BBK long tube headers and a Borla exhaust. Has anyone done that? Any recommendations? Any other suggestions are welcomed.
Mike29
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What sort of temperatures do exhaust manifolds on large engines reach after normal operation?

The main car that I was wondering for was a Nissan Altima 2.5l 4dr. 2007 with 138,000 Miles
Bobby Mccabe
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