Thumping noise out exhaust?
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Thumping noise out exhaust?
I have a code for #6 low contribution and a thumping noise out the exhaust. When I turn number 6 injector off the popping/ thumping goes away. Truck is straight piped and deleted. It started doing this after getting on it hard to get on the high way. Sounds like beating an empty pop bottle on something
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Joined: Nov 2013
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From: Hempstead, TX
There are others with far more talent than I have that could better assist, but I would look to see if it is abnormally higher or lower rates when compared to the other injectors. To me, it would either be a bad injector, or something with the piston, wrist pin, or connecting rod. Let's hope it is an injector.
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The noise goes away and truck sounds normal at anything above idle also. With that injector turned off it sounds normal at idle. Where should I start looking for the problem. And actually I just checked and my scanner is a Solus edge
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Hotshot
Joined: Nov 2013
Posts: 10,107
Likes: 96
From: Hempstead, TX
Hopefully someone with more knowledge on the subject will be able to jump in tomorrow and assist. If it quiets down above idle and isn't smoking, I would like to think it is ok to drive until you get better info.
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Yea. It's a pretty strange issue. I was thinking it was rocker arm/ push rod related until I turned the injector off and it stopped. Now I don't know. Maybe a should just pull that valve cover and have a look. If everything looks good then throw in a number 6 injector and see if it fixes it
