Volvo - 940 :: 1995 - Popping Noise / Hairline Crack In Exhaust Manifold
Oct 16, 2013
A mechanic reports a "hairline crack" in the exhaust manifold, and that things there (what things???) are all rusted and there might be problems removing manifold. Son's Internet research turns up lots of cases of Volvos with broken bolts from trying to remove rusted manifold. (Of course, you only hear about the bad ones.)
Son says he does not hear any noise (popping) and he does not smell any exhaust. Can we let it go? Is there a stickum repair we could try? (I was thinking of the high temperature cement I used on furnace flue metal duct, but I suspect it would not hold the pressure of the exhaust.)
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So I believe I have a crack in the Exhaust Manifold... When I rev the car I can hear a slight tick. I had taken it to a shop to do a muffler delete and said that there may be a leak or crack somewhere. The tech said it wasn't too bad but it may be something to keep an eye on. My question is, what would be the best route to go? Is this a common issue with the ISF? I was thinking if it was also possible if it may just be the gasket, which the tech also said it could be. I have a 2008 model with about 113k miles on it.
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I noticed a bunch of dried coolant during my last oil change, ended up tracking it to where the upper radiator hose meets the reservoir. It's leaking a few drops per week, but it's enough to be irritating. I was only able to catch it by feeling the underside of the hose.
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I have a 95 4wd f250 with a 351w my manifold gaskets are leaking I was wondering if when I that the time to remove the manifolds and probably be drilling and tapping should I go with headers if I should where can I get a very cheap set I'm on a budget...
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Actually developed a crack and subsequent leak in a pipe running lengthwise, so assume the factory weld over the years went bad. Since it would be a weld overhead, wonder what method would be best? Would oxy acetylene work or mig? I don't have a tig so that not an option for me.
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Finally got the car started after over a year of acquiring parts and labor. Cylinder 5&6 had misfires due to faulty injector harnesses. That issue has resolved. But I am getting a pretty distinct exhaust leak noise coming from the manifold area and i cannot figure out where it is coming from. We smoke tested it and still can't find the leak.
Things we checked:
-Head to manifold (all nuts tight)
-Manifold to turbo (all nuts tight)
-Turbo to downpipe (2 vbands both tight)
-Wastegate (2bolt manifold to adapter tight and vband adapter to wastgate tight)
-(2) O2 sensor plugs on the maniold (tight)
-All turbo hardware (tight)
-manifold and downpipe have no cracks
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I was looking at my exhaust manifold..and I found a couple of studs missing...so if I want to replace both of them , is it better if I replace all of them on both sides of the engine ?
By the way..my exhaust manifold is good I don't think none of the studs are broken.. but I have been having this engine knocking noise on my engine, do yall think a couple of studs could be the problem of why my engine is knocking?
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2011 Volvo XC70. I'm hearing a popping sound similar to a plastic bottle popping coming somewhere from the back seat of my Volvo XC70. This usually occurs while driving a few miles after first starting the vehicle and happens only once. We've check the car for any plastic bottles that may have been lodged under the seat or inside the car and no bottles were found. Where this sound is coming from. There seems to be no mechanical problems associated with it, just this popping sound which is quite loud.
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I have a 97 Expedition with the 5.4 engine and 160k miles. Recently while having other work done I was told that I had an exhaust manifold leak due to broken rusted bolts.
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Leaking exhaust manifold? The truck has a much louder than normal "knock" when accelerating. At first I thought and had some bad fuel in the tank. I eliminated that with a full take of good fuel and some STP but the "knocking" continued. Then I thought that perhaps it wasn't firing on all cylinders but it felt like it had full power. I took it to my mechanic and he said it as a exhaust manifold leak. He said that he has never replaced the exhaust manifold but that it was a "nightmare" and expensive. He also said that it's not a safety issue but on the long run the leak would cause the truck not to pass its emission test. He said the problem was with rusted bolts that would be difficult to remove.
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Okay so with my old Accent I had the same Magnaflow exhaust I have now on the Elantra. Sounds identical with one exception; When I'd down shift with my Accent I'd get some popping coming from the exhaust. I get no such sound with my current set-up. Now I know some people don't like it but I do.
So my question is simple... Would removing the resonator (assuming the Elantra's have one) or doing something else to the exhaust give me back my wonderful popping sound?
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My truck just started running really loud when it's cold and the leak goes away when it warms up to operating temperature.I did a little bit of investigating and I have found where the leak is coming from at the end of the exhaust manifold where the donut gasket meets the catalytic converters. It appears that the bolts rotted that hold the system together at the gasket. What should I do to repair this? I don't really want to replace the whole manifold because I know I'll break a stud off in the engine because everything is pretty rusty down there. I even took some pictures of the problem....
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My wife's 97 f150 4x4 had an exhaust leak on the passenger side. 7 out of the 8 bolts holding the manifold on are snapped off. 4 of them are snapped off 1/8" below the top of the hole on the cylinder head . I am I unable to get a drill in to drill these out. The other 3 I've tried welding a nut on these but they won't budge and I wring the nuts off. If I have to pull the head(something I don't want to do)can I just pull that 1 head or do I have to tear the intake and everything off?
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I have owned a 2002 Volvo S60 2.4L for the past two years, and she has served me well. However, I have been having issues lately. She has hit 179,400-ish miles and with age things have started to fail. I want to know how much it will cost to fix these things and if I can do it myself.
There is a metallic popping noise coming from the right front side of the vehicle every time I make a turn (I haven't particularly noticed if it's a left- or right-hand turn when it happens.) I have been advised by my father that it's probably a CV (constant velocity) joint. Is that what's causing the noise?
My right front headlight has gone out, and I've replaced the bulb as well as the fuse, but it's still out. Could it be faulty wiring? The left front blinker has stopped blinking, I hope that's as simple as changing out the bulb.
The shift is automatic, but in the mornings (I've noticed it's mostly when it's cold outside) I attempt to move the shifter out of park and it won't budge for several minutes. Sometimes I have to turn the engine off, and then turn it back on for the shifter to move.
One last question- how often should I change and/or flush my transmission fluid and the filter, and can I do that myself or should I take it to the dealership? (Which I am reluctant to do.)
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I have a 1995 850. About a year ago, I suddenly had a loud grinding noise coming from my brakes. It only happened in hot weather and when the brakes seemed to be hot. Also, it only happened when I was coming to a final stop, like the last 10-20 feet. I took my car to my "trusted" mechanic. They diagnosed it as being my front pads and rotors, so they replaced them (they also felt the front vibrating.) NOW the brakes seemed okay after I got it back the second time (no loud grinding noise.)
When I got the car back, the weather was starting to cool since it was nearing winter. My winter weather is like 70's during the day, and during this time, there was no grinding. It's now starting to get hot again, and sure enough, that grinding noise is back, but not as bad as the first time a year ago. Again, it is only when the brakes heat up and I come to a final stop (the last 10-20 feet.) If I break lightly, it won't make that noise, and it takes me driving for about 15 minutes for the grinding noise to start (it sounds like metal on metal and loud.) Also, I don't feel the vibration like I did a year ago. I only drive the streets, and have not been on the freeway since I got the new brakes.
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So I needed to replace my exhaust manifold gaskets and bolts and I didn't get the project finished in time. I have school today and have to drive my truck there and it is maybe 2 miles at the most from my house. Is it ok to drive that far with them open? I will finish putting the gaskets on today when i get home and then close them again.
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Four months on and today I noticed my 3M carbon fibre wrapped exhaust tips are beginning to crack and peel in the corners. I am thinking exhaust heat finally drying the glue backing out causing them to dry up like old leaves.
Also after Plasti Dipping my logos I have had no luck with the rear tailgate F Sport logo in removing the fine SPORT centre fill cleanly to reveal the white background on my white GS. Everywhere else went perfect. Not keen on leaving a silver logo with all other blacked out on the back end.
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I have a 95 f150, Eddie Bauer, extended cab, 4x4, 302, 285 tires. My question is this... What happens if I remove the second cat. I am trying to get a better sound from the exhaust and have been told the second cat is making that impossible. There is no o2 sensor downstream of the second cat, so I'm thinking the computer will never know its gone. Also how well this affect power. With the bigger tires, it's kinda sluggish off the line.
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Just today,when replacing the UIM on a naturally aspirated 95 Pontiac Bonneville 3.8 with a Dorman upgraded type from my local auto parts, I ran into an issue. When following specified torquing sequences and specs , be very careful with the 1 long stud (#7), as it will split your new manifold there if you try to torque to 89 in/lbs. Took 1st back for replacement ,and the second new one started to split at the same place. Was using a brand new Craftsman in/lb torque wrench set correctly and following instructions exactly. I've seen a lot of excellent info on this UIM issue with the GM 3.8 ltr 1995-2004 years, but never this issue with the replacement ones. If I have to change this again will definitely go with the aluminum one.
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I finally decided to replace a leaky manifold as the low compression and leaking oil has gotten to be too much. Not sure but it looks like I'll have to remove the intake manni to get to it. A fortunate side effect is that the oil leaking from the manni seems to have lubricated most of what would be rust-welded bolts. I'd driven it like this since I bought it 3 yrs ago.
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The guy at the muffler place says I have a cracked exhaust manifold. He also says he can't get the parts after holiday. I'm supposed to drive, with my family for holidays. The muffler guy says that should be fine - highway driving will generate enough airflow to keep us from all dying of CO asphyxiation.
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