Noise & smoke - cure for that ? (Video)
#1
Member
Thread Starter
Noise & smoke - cure for that ? (Video)
Hi,
Our Lexus kissed a wall, so we HAVE to use the 87 XJ Wagoneer for a long trip before a new lockdown in France.
I am so happy. As the XJ is very noisy, my wife usually is a bit reluctant to use it for long trips.
preparing the car, I noticed a knock knock at idle.
not sure it was so loud before.
IYO what is the diagnostic / cure ?
btw, I also noticed a heavy white smoke.
weahter was on the cold and rainy side.
And I didn’t use the car for a week.
after 5 min dlin, it was still smoking.
After an hour driving on the highway, there were no visible smoke (and still water in the tank!)
should I worry?
thanks
Our Lexus kissed a wall, so we HAVE to use the 87 XJ Wagoneer for a long trip before a new lockdown in France.
I am so happy. As the XJ is very noisy, my wife usually is a bit reluctant to use it for long trips.
preparing the car, I noticed a knock knock at idle.
not sure it was so loud before.
IYO what is the diagnostic / cure ?
btw, I also noticed a heavy white smoke.
weahter was on the cold and rainy side.
And I didn’t use the car for a week.
after 5 min dlin, it was still smoking.
After an hour driving on the highway, there were no visible smoke (and still water in the tank!)
should I worry?
thanks
Last edited by EuroJeep; 04-10-2021 at 10:23 AM.
#2
Senior Member
You have an exhaust leak. Most likely the exhaust manifold is cracked. It's common. It's also not a huge problem. Just noisy and smelly.
The white smoke is probably from moisture in the exhaust system. If mine sits for about a week it will do the same. Just keep an eye on the temp and the coolant tank, but I don't think you have anything to worry about.
The white smoke is probably from moisture in the exhaust system. If mine sits for about a week it will do the same. Just keep an eye on the temp and the coolant tank, but I don't think you have anything to worry about.
#3
Member
Thread Starter
Thanks.
The knocking is from the exhaust ?
might be the reason why there is so much noise in the cabin from 80km/h ?
I’ll look closely at exhaust manifold and the full line.
The knocking is from the exhaust ?
might be the reason why there is so much noise in the cabin from 80km/h ?
I’ll look closely at exhaust manifold and the full line.
#4
Senior Member
I definitely hear an exhaust leak. The audio on videos can be misleading sometimes though, so it's possible there could be a knock, but it sounds like exhaust to me.
#5
Member
Thread Starter
I am looking for exaust leaks.
but the knocking sounds mecanical to me.
any other opinion ?
thanks.
but the knocking sounds mecanical to me.
any other opinion ?
thanks.
Last edited by EuroJeep; 04-13-2021 at 06:21 AM.
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